PRO dustem_plot_dataset,st $
                       ,dustem_interp $
                       ,dustem_spec $
                       ,extra_spec=extra_spec $
                       ,dataset=dataset $
                       ,refresh=refresh $
                       ,position=position $
                       ,positive_only=positive_only $
                       ,negative_only=negative_only $
                       ,_extra=_extra $
                       ,help=help

;+
; NAME:
;    dustem_plot_dataset

;

; PURPOSE:
;    Allows the plotting of a (several) dataset(s) 

;

; CATEGORY:

;    DustEMWrap, Distributed, Low-level, Plotting
;

; CALLING SEQUENCE:

;    dustem_plot_dataset, st, dustem_interp, dustem_spec, dataset ,extra_spec=extra_spec, refresh=refresh, position=position,positive_only=positive_only, negative_only=negative_only, _extra=_extra 

;

; INPUTS:

;    st = DustEM output structure

;

; INPUT and OUTPUT KEYWORDS:
;    dustem_interp = dustem SED predictions - type = array or list of arrays.
;    dustem_spec = dustem spectra predictions (Emission or Extinction) - type = array or list of arrays 
;    extra_spec = Specific to the use of polfrac that requires an extra spectrum (that of SED) - type = array or list of arrays

;    dataset = Dataset(s) to be plotted - type = array. If absent, nothing gets plotted.

;    position =  Position(s) of the plot(s) - type = list 
;    positive_only = Plotting of positive data on a 'modified logarithm' axis/plot - type = Boolean array   
;    negative_only = Plotting of negative data on a 'modified logarithm' axis/plot - type =  

;

; OUTPUTS:
;    NONE

; ACCEPTED KEY-WORDS:
;    help

;    refresh = Plot the datasets that change after each DustEM run 

;

; COMMON BLOCKS:
;    None

;

; SIDE EFFECTS:
;    Does a plot

;

; RESTRICTIONS:
;    The DustEM fortran code must be installed
;    The DustEMWrap IDL code must be installed

;

; PROCEDURES AND SUBROUTINES USED:
;
; EXAMPLES
;    
; MODIFICATION HISTORY:

;    Written by Ilyes Choubani 2022

;    Evolution details on the DustEMWrap gitlab.

;    See http://dustemwrap.irap.omp.eu/ for FAQ and help.  

;-

IF keyword_set(help) THEN BEGIN
  doc_library,'dustem_plot_dataset'
  goto,the_end
END

;****NB (Latest changes)****:  
;Now all datasets can be plotted simultaneously
;In addition, for each dataset, the normalized plot and normal plot are plotted simultaneously
;This was not the case before.
;Since the new changes, I believe many of the plotting keywords can be removed. 
;This is in part because I have added a /nodata plot at each update/refreshing step to guide the routine where to plot.

;REMOVED/OBSOLETE: kept to potentially help fix errors.

; if !run_pol then begin
;     if isa(position) then begin
;         if keyword_set(norm) then pospltxt = [position(0)+0.02,position(3)-0.02] else pospltxt = [position(0)+0.02,position(3)-0.03]  
;     endif
; endif else begin
;     if isa(position) then pospltxt = [position(0)+0.02,position(3)-0.05] ;hard-coded but we can find a way 
; endelse 

wavs=dustem_get_wavelengths()
n_plgns = n_tags(*!dustem_plugin)
Ngrains=(*!dustem_params).Ngrains
use_cols=dustem_grains_colors(Ngrains,/cgplot)
use_cols[1]='Cornflower'
fact = 1.e4*(*!dustem_HCD)/(4.*!pi)/(3.e8/1.e-6/st.sed.wav)*1.e20/1.e7 ; st.sed.wav and st.polsed.wav should remain the same

clrs_plgns = ['Rosy Brown','Gold','Light Coral','Slate Blue','Dark Khaki','Salmon','Dark Green'] ;FOR NOW
;NB: plugins need to have different colors for extinction because they are not the same plugins. New array required.

scopes=tag_names((*!dustem_plugin))
tgnms_extra = tag_names(_extra)


frmt0='(A46)'
frmt1='(1E11.4)'
frmt2='(10F10.2)'

; if keyword_set(refresh) then begin
; 
;     dustem_interp.reverse
;     dustem_spec.reverse
;     extra_spec.reverse
;     dataset=reverse(dataset)
;     position.reverse
;     
; endif

;These were created to be able to utilize the existing structure of this procedure 
;and to plot multiple datasets at once... 
;The routine also allows to plot a single dataset but this will have to be set in the main plotting routine which is dustermwrap_plot.

;The following variables are created because I wanted to keep using the same variable names throughout the lines of the code.
;I can replace them in the future.

if keyword_set(dustem_interp) then dustem_interp_sv = dustem_interp else dustem_interp_sv = list()
if keyword_set(dustem_spec) then dustem_spec_sv = dustem_spec else dustem_spec_sv = list()
if keyword_set(extra_spec) then extra_spec_sv = extra_spec else extra_spec_sv = list();assuming this is always called
if keyword_set(position) then position_sv=position else position_sv = list()

;temporary solution. I'll clean up the code in the future
positive_only=1
negative_only=1

;Generating a fake vector that extends beyond the DustEM/DustEmWrap wavelength range (for display purposes only)
vectw=DINDGEN(1001)*(alog10(1E7) - alog10(1E5))/(1000 - 1L) + alog10(1E5)
vectw=10^vectw[1:*]
vectw=[wavs,vectw]
vectx=vectw*0+1

if keyword_set(dataset) then begin ;

    for ss=0L,n_elements(dataset)-1 do begin

            if n_elements(dustem_interp_sv) NE 0 then begin
                if typename(dustem_interp_sv) EQ 'LIST' then  dustem_interp = dustem_interp_sv[ss] else dustem_interp = dustem_interp_sv
            endif
            if n_elements(dustem_spec_sv) NE 0  then begin
                if typename(dustem_spec_sv) EQ 'LIST' then dustem_spec = dustem_spec_sv[ss] else dustem_spec = dustem_spec_sv
            endif
            if n_elements(extra_spec_sv) NE 0 then begin
                if n_elements(extra_spec_sv[ss]) NE 1 then extra_spec = extra_spec_sv[ss] ;assuming this is always called
            endif

            if n_elements(position_sv) NE 0 then begin

                if (size(position_sv(0)))[2] NE 11 then position=position_sv else position=position_sv[ss]

                
                if n_elements(position) ne 1 then begin ;eq 1 is for datasets that don't have normalized curves. ie: polfrac and psi.

                    if !run_pol then begin
                        
                        pospltxt = [(position[0])(0)+0.02,(position[0])(3)-0.03]
                        pospltxt_n = [(position[1])(0)+0.02,(position[1])(3)-0.02];created this new array so that the normalized plot is automatically plotted for each dataset. 
                        
                    endif else begin
                    
                        pospltxt = [(position[0])(0)+0.02,(position[0])(3)-0.05]
                        pospltxt_n = [(position[1])(0)+0.02,(position[1])(3)-0.05]
                    
                    endelse 

                endif else pospltxt = [(position[0])(0)+0.02,(position[0])(3)-0.05];

            endif

            Case strupcase(dataset[ss]) of 
            

               'SED': begin

                
                    ;SETTING THE PLOT RANGE
                    xr = !dustem_plot_range.sed.xr
                    yr = !dustem_plot_range.sed.yr

                    idx_filt=where((*(*!dustem_data).sed).filt_names NE 'SPECTRUM',ct_filt)
                    idx_spec=where((*(*!dustem_data).sed).filt_names EQ 'SPECTRUM',ct_spec)
                            
                    ;DISPLAYING OF NORMALIZED PLOT HERE IS DONE BEFORE THE PLOTTING OF THE NORMAL PLOT
                    ;THIS SHOULD NOT INTERFERE WITH THE CODE.
                    

                    If n_elements(position) GT 1 THEN BEGIN ;Making the plotting of the normalized data optional because so far it was forced.
                        ;REFRESHING OF NORMALIZED PLOT
                        if keyword_set(refresh) then begin ;The data points in the plot that are being refreshed 
                            ;making sure we're on the plot we're consider (since cgwindow doesn't allow us to do what we want anyway...)
                            cgplot,vectw,vectx,/nodata,/xlog,xs=9,ys=9,pos=position[1],noerase=1,ytickformat='(A1)',xtickformat='(A1)',color='Black',xr=xr,xtit='',yticks=0,xticks=0,xticklen=0.0,yticklen=0.0,yr=[0.0,2.0],ymino=2,charsize=1.0

                            IF ct_spec NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).sed).wav)[idx_spec]
                                yy=dustem_interp[idx_spec]
                                rms=2.*((*(*!dustem_data).sed).sigma)(idx_spec)/2.

                                cgoplot,xx,((*(*!dustem_data).sed).values)[idx_spec]/yy,color='Powder Blue',psym=16,syms=0.8,noerase=1,pos=position[1];,noclip=0
                                cgerrplot,((*(*!dustem_data).sed).wav)(idx_spec),(((*(*!dustem_data).sed).values)[idx_spec]-rms)/yy,(((*(*!dustem_data).sed).values)[idx_spec]+rms)/yy,color='Powder Blue';,noclip=0

                            ENDIF
                            
                            IF ct_filt NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).sed).wav)[idx_filt]
                                yy=dustem_interp[idx_filt]
                                rms=2.*((*(*!dustem_data).sed).sigma)(idx_filt)/2. 

                                cgoplot,xx,((*(*!dustem_data).sed).values)[idx_filt]/yy,psym=16,color='Dodger Blue',syms=0.8,noerase=1,pos=position[1];,noclip=0
                                cgerrplot,((*(*!dustem_data).sed).wav)(idx_filt),(((*(*!dustem_data).sed).values)[idx_filt]-rms)/yy,(((*(*!dustem_data).sed).values)[idx_filt]+rms)/yy,color='Dodger Blue';,noclip=0;,/overplot 

                            ENDIF
                                
                            
                        endif 

                        ;PLOTTING OF FROZEN PART OF NORMALIZED PLOT    
                        if not keyword_set(refresh) then begin        ;This used to be an ELSE condition before. Made it like so for testing.
                            
                            xtit=textoidl('\lambda (\mum)')
                            if !run_pol then begin
                                xtit = ''
                                xtickformat='(A1)'
                            endif else xtickformat='(F10.2)' ;MAYBE YOU'LL CHANGE THIS FORMAT TO EXPONENTIAL NOTATION
                            
                            cgplot,vectw,vectx,/xlog,/ys,xs=1,pos=position[1],noerase=1,xtickformat=xtickformat,color='Black',xr=xr,xtit=xtit,yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,ytickformat='(F6.2)',charsize=1.0
                            xyouts,pospltxt_n[0],pospltxt_n[1],textoidl('norm'),color=0,/normal,charsize=1.1

                        ;endelse
                        endif
                    ENDIF

                    ;REFRESHING OF NORMAL PLOT                 

                    if keyword_set(refresh) then begin ;The data points in the plot are being refreshed
                        

                        ;stop
                        ;making sure we're on the plot we're consider (since cgwindow doesn't allow us to do what we want anyway...)
                        cgplot,vectw,vectx,/nodata,/xlog,/ylog,xs=8,ys=8,pos=position[0],noerase=1,ytickformat='(A1)',xtickformat='(A1)',color='Black',xr=xr,xtit='',yr=yr,yticks=0,xticks=0,xticklen=0.0,yticklen=0.0,charsize=1.0
                        
                        ;stop
                        

                        ;Plotting of the spectra of the dust species
                        FOR i=0L,Ngrains-1 DO BEGIN

                            cgoplot,st.sed.wav,st.sed.(i+1)*fact,color=use_cols[i],pos=position[0],noerase=1

                        ENDFOR

                        ;stop

                                                
                        ;Plotting of the plugins.
                        for i=0L,n_plgns-1 do begin
                            
                            if isa((*!dustem_plugin).(0).spec) then begin 
                            
                                IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_SED') THEN begin

                                    cgoplot,st.sed.wav,((*(*!dustem_plugin).(i).spec)[*,0]),color=clrs_plgns[i],pos=position[0],noerase=1,linestyle=2               

                                ENDIF
                                
                            endif
                            
                        endfor
                                                
                        ;PLotting of the interpolates corresponding to spectrum and filter points
                           
                        IF ct_spec NE 0 THEN BEGIN
                        
                            xx=((*(*!dustem_data).sed).wav)[idx_spec]
                            yy=dustem_interp[idx_spec]

                            cgoplot,xx,yy,color='Indian Red',pos=position[0],psym=7,syms=1,noerase=1   

                        ENDIF
                        
                        
                        IF ct_filt NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).sed).wav)[idx_filt]
                            yy=dustem_interp[idx_filt]

                            ;stop
                            cgoplot,xx,yy,color='red',pos=position[0],psym=6,syms=2,noerase=1

                        ENDIF
                        
                        
                        ;Plotting of the total dust emission spectrum

                        cgoplot,st.sed.wav,dustem_spec,pos=position[0],noerase=1,/xlog,/ys,/xs,/ylog

                                
                    endif ;else begin ;The data points in the plot that remain unchanged.
                        ;stop
                    if not keyword_set(refresh) then begin
                        ;Spectrum points are treated before for plotting reasons. 
                        if ct_spec ne 0 then begin 
                            
                            ;Plotting of spectrum data points (to be fitted)

                            cgplot,((*(*!dustem_data).sed).wav)(idx_spec),((*(*!dustem_data).sed).values)(idx_spec),/ylog,/xlog,/ys,xs=9,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=16,syms=0.8,ytickformat='dstmwrp_exp'                

                            
                            ;Plotting of the spectrum error points

                            rms=2.*((*(*!dustem_data).sed).sigma)(idx_spec)/2.

                            cgerrplot,((*(*!dustem_data).sed).wav)(idx_spec),((*(*!dustem_data).sed).values)(idx_spec)-rms,((*(*!dustem_data).sed).values)(idx_spec)+rms,color='Powder Blue'

                        endif
                        
                        if ct_filt ne 0 then begin

                            ;Plotting of filter data points (to be fitted) + testing for prior plotting                         

                            if ct_spec ne 0 then cgoplot,((*(*!dustem_data).sed).wav)(idx_filt),((*(*!dustem_data).sed).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog else $
                                cgplot,((*(*!dustem_data).sed).wav)(idx_filt),((*(*!dustem_data).sed).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog

                            
                            
                            ;Plotting of the filter error points

                            rms=2.*((*(*!dustem_data).sed).sigma)(idx_filt)/2.;/dustem_sed(idx_filt)

                            cgerrplot,((*(*!dustem_data).sed).wav)(idx_filt),((*(*!dustem_data).sed).values)(idx_filt)-rms,((*(*!dustem_data).sed).values)(idx_filt)+rms,color='Dodger Blue'
                            
                        endif
                        
                        ;Plotting of frequency axis

                        ;what are these? tests?

                        ;save_x=!x & save_y=!y & save_z=!z & save_p=!p & save_d=!d
                        ;save_scaling=1

                        use_xrange=((!const.c*1E6/(xr))*1E-9)

                        ;order=sort(use_xrange)
                        ;use_xrange=use_xrange[order]
                        ;print,use_xrange

                        IF !dustemwrap_which_language NE 'fawlty' THEN BEGIN
                            axis, xaxis=1, xlog=1, xs=1, xminor=10, xticklen=0.05, xrange=use_xrange,charsize=1.15,xtitle=textoidl('\nu (GHz)'),color=0
                        ENDIF
                        
                        xyouts,pospltxt[0],pospltxt[1],textoidl('I_{\nu} (MJy/sr)'),color=0,/normal,charsize=1.3;,charthick=2.0
                         
                        ;Locating all the hidden data points (spectrum+filter)
                        match2,((*(*!dustem_data).sed).wav),((*(*!dustem_show).sed).wav),show_sedpts,fit_sedpts ;only show_sedpts is needed
                        idx_rmv_sed=where(fit_sedpts eq -1, ct_hdnpts) ; indices of the points to hide
                        ;Locating the hidden spectrum and filter data points                                        
                        idx_filt_hdn = where((((*(*!dustem_show).sed).filt_names))(idx_rmv_sed) NE 'SPECTRUM',ct_filt_hdn)
                        idx_spec_hdn = where(((*(*!dustem_show).sed).filt_names)(idx_rmv_sed) EQ 'SPECTRUM',ct_spec_hdn)
                         
                        if ct_hdnpts ne 0 then begin ;Hidden data points are present 

                            if ct_spec_hdn ne 0 then begin
                                ;Plotting of hidden spectrum data points

                                cgoplot,(((*(*!dustem_show).sed).wav)[idx_rmv_sed])(idx_spec_hdn),(((*(*!dustem_show).sed).values)[idx_rmv_sed])(idx_spec_hdn),pos=position[0],/ylog,/xlog,/ys,xs=9,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=16,syms=0.8

                                
                                ;Plotting of hidden spectrum error points

                                rms=2.*(((*(*!dustem_show).sed).sigma)[idx_rmv_sed])(idx_spec_hdn)/2.

                                cgerrplot,(((*(*!dustem_show).sed).wav)[idx_rmv_sed])(idx_spec_hdn),(((*(*!dustem_show).sed).values)[idx_rmv_sed])(idx_spec_hdn)-rms,(((*(*!dustem_show).sed).values)[idx_rmv_sed])(idx_spec_hdn)+rms,color='Black'
                            endif                                            
                            
                            if ct_filt_hdn then begin
                            ;Plotting of hidden filter data points 

                                cgoplot,(((*(*!dustem_show).sed).wav)[idx_rmv_sed])(idx_filt_hdn),(((*(*!dustem_show).sed).values)[idx_rmv_sed])(idx_filt_hdn),pos=position[0],/ylog,/xlog,/ys,xs=9,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=16,syms=0.8                                           

                                
                                ;Plotting of hidden filter error point

                                rms=2.*(((*(*!dustem_show).sed).sigma)[idx_rmv_sed])(idx_filt_hdn)/2.

                                cgerrplot,(((*(*!dustem_show).sed).wav)[idx_rmv_sed])(idx_filt_hdn),(((*(*!dustem_show).sed).values)[idx_rmv_sed])(idx_filt_hdn)-rms,(((*(*!dustem_show).sed).values)[idx_rmv_sed])(idx_filt_hdn)+rms,color='Black'
                                
                            endif
                                                           
                        endif    

                    endif

    
                end

            ;DONE BUT NOT TESTED

            'EXT': begin 

                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.ext.xr
                yr = !dustem_plot_range.ext.yr

                idx_filt=where((*(*!dustem_data).ext).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).ext).filt_names EQ 'SPECTRUM',ct_spec)         
                        

                If n_elements(position) GT 1 THEN BEGIN ;Making the plotting of the normalized data optional because so far it was forced.
                    ;PLOTTING OF NORMALIZED PLOT

                    ;REFRESHING OF NORMALIZED PLOT 
                    if keyword_set(refresh) then begin ;The data points in the plot that are being refreshed 
                        
                        ;making sure we're in the normalized plot so that overplotting happens here
                        cgplot,1/vectw,vectx,/xlog,/nodata,ys=8,xs=8,pos=position[1],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,charsize=1.0
                        
                        IF ct_spec NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).ext).wav)[idx_spec]
                            yy=dustem_interp[idx_spec]
                            rms=2.*((*(*!dustem_data).ext).sigma)(idx_spec)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,(1/xx)[indzero],(((*(*!dustem_data).ext).values)[idx_spec])[indzero]/yy[indzero],color='Powder Blue',psym=16,syms=0.8,noerase=1,pos=position[1]
                                cgerrplot,(1/((*(*!dustem_data).ext).wav)(idx_spec))[indzero],((((*(*!dustem_data).ext).values)[idx_spec])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).ext).values)[idx_spec])[indzero]+rms[indzero])/yy[indzero],color='Powder Blue'
                            ENDIF

                        ENDIF

                        
                        IF ct_filt NE 0 THEN BEGIN ; There are no filter points for now...
                            xx=((*(*!dustem_data).ext).wav)[idx_filt]
                            yy=dustem_interp[idx_filt]
                            rms=2.*((*(*!dustem_data).ext).sigma)(idx_filt)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,(1/xx)[indzero],(((*(*!dustem_data).ext).values)[idx_filt])[indzero]/yy[indzero],psym=16,color='Dodger Blue',syms=0.8,noerase=1,pos=position[1]
                                cgerrplot,(1/((*(*!dustem_data).ext).wav)(idx_filt))[indzero],((((*(*!dustem_data).ext).values)[idx_filt])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).ext).values)[idx_filt])[indzero]+rms[indzero])/yy[indzero],color='Dodger Blue';,/overplot 
                            ENDIF

                        ENDIF

                    endif 

                    ;plotting of frozen data in polarization plot                            
                    if not keyword_set(refresh) then begin 
                           
                        xtit=textoidl('1/\lambda (\mum^{-1})')
                        if !run_pol then begin
                            xtit = ''
                            xtickformat='(A1)'
                        endif else xtickformat='(F10.2)' ;MAYBE YOU'LL CHANGE THIS FORMAT TO EXPONENTIAL NOTATION
                        cgplot,1/vectw,vectx,/xlog,/ys,xs=1,pos=position[1],noerase=1,xtickformat=xtickformat,color='Black',xr=xr,xtit=xtit,yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,ytickformat='(F6.2)',charsize=1.0
                        xyouts,pospltxt_n[0],pospltxt_n[1],textoidl('norm'),color=0,/normal,charsize=1.1
                    
                    endif

                ENDIF

            ;PLOTTING OF NORMAL PLOT
                
                ;REFRESHING OF NORMAL PLOT
                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed

                    
                    ;making sure we're in the normal plot so that overplotting happens here

                    cgplot,1/vectw,vectx,/xlog,/ylog,/nodata,ys=8,xs=8,pos=position[0],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=yr,yticks=2,ymino=2,xticklen=0.1,charsize=1.0

                    
                    ;Plotting of the spectra of the dust species
                
                    FOR i=0L,Ngrains-1 DO BEGIN

                        cgoplot,1/st.ext.wav,transpose((st.ext.(1))[i,*]+(st.ext.(2))[i,*])*(*!dustem_HCD)/1.0e21,color=use_cols[i],pos=position[0],noerase=1

                    ENDFOR

                                            
                    ;Plotting of the plugins.
                    for i=0L,n_plgns-1 do begin

                        if isa((*!dustem_plugin).(0).spec) then begin 
                        
                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_EXT') THEN begin

                                cgoplot,1/st.ext.wav,((*(*!dustem_plugin).(i).spec)[*,0]),color=clrs_plgns[i],pos=position[0],noerase=1,linestyle=2               

                            ENDIF

                        endif

                    endfor
                                            
                    ;PLotting of the interpolates corresponding to spectrum and filter points
                       
                    IF ct_spec NE 0 THEN BEGIN

                        xx=((*(*!dustem_data).ext).wav)[idx_spec]
                        yy=dustem_interp[idx_spec]

                        cgoplot,1/xx,yy,color='Indian Red',pos=position[0],psym=7,syms=1,noerase=1   

                    ENDIF

                    IF ct_filt NE 0 THEN BEGIN
                        xx=((*(*!dustem_data).ext).wav)[idx_filt]
                        yy=dustem_interp[idx_filt]

                        cgoplot,1/xx,yy,color='red',pos=position[0],psym=6,syms=2,noerase=1

                    ENDIF
                    
                    
                    ;Plotting of the total dust emission spectrum

                    cgoplot,1/st.ext.wav,dustem_spec,pos=position[0],noerase=1,/xlog,/ys,/xs,/ylog

                endif 
                
                ;Plotting of the frozen data in the normal plot
                
                if not keyword_set(refresh) then begin
                    ;Spectrum points are treated before for plotting reasons. 
                    if ct_spec ne 0 then begin 

                        ;Plotting of spectrum data points (to be fitted)

                        cgplot,1/((*(*!dustem_data).ext).wav)(idx_spec),((*(*!dustem_data).ext).values)(idx_spec),/ylog,/xlog,ys=8,xs=8,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=16,syms=0.8,ytickformat='dstmwrp_exp'                

                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).ext).sigma)(idx_spec)/2.
                        cgerrplot,1/((*(*!dustem_data).ext).wav)(idx_spec),((*(*!dustem_data).ext).values)(idx_spec)-rms,((*(*!dustem_data).ext).values)(idx_spec)+rms,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                    
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         

                        if ct_spec ne 0 then cgoplot,1/((*(*!dustem_data).ext).wav)(idx_filt),((*(*!dustem_data).ext).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog else $

                            cgplot,1/((*(*!dustem_data).ext).wav)(idx_filt),((*(*!dustem_data).ext).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],ys=8,xs=8,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog

                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).ext).sigma)(idx_filt)/2.;/dustem_sed(idx_filt)
                        cgerrplot,1/((*(*!dustem_data).ext).wav)(idx_filt),((*(*!dustem_data).ext).values)(idx_filt)-rms,((*(*!dustem_data).ext).values)(idx_filt)+rms,color='Dodger Blue'

                    endif
                    
                    
                    ;Plotting of frequency axis
                    IF !dustemwrap_which_language NE 'fawlty' THEN BEGIN
                        axis, xaxis=1, xlog=1, xs=1, xminor=10, xticklen=0.05, xrange=((!const.c*1E6*xr)*1E-9),charsize=1.15,xtitle=textoidl('\nu (GHz)'),color=0
                    ENDIF
                    xyouts,pospltxt[0],pospltxt[1],textoidl('\tau_{EXT}'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    match2,((*(*!dustem_data).ext).wav),((*(*!dustem_show).ext).wav),show_sedpts,fit_sedpts ;only show_sedpts is needed
                    idx_rmv_sed=where(fit_sedpts eq -1, ct_hdnpts) ; indices of the points to hide
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where((((*(*!dustem_show).ext).filt_names))(idx_rmv_sed) NE 'SPECTRUM',ct_filt_hdn)
                    idx_spec_hdn = where(((*(*!dustem_show).ext).filt_names)(idx_rmv_sed) EQ 'SPECTRUM',ct_spec_hdn)
                     
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 

                        ;stop

                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points

                            cgoplot,1/(((*(*!dustem_show).ext).wav)[idx_rmv_sed])(idx_spec_hdn),(((*(*!dustem_show).ext).values)[idx_rmv_sed])(idx_spec_hdn),pos=position[0],/ylog,/xlog,ys=8,xs=8,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=16,syms=0.8

                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).ext).sigma)[idx_rmv_sed])(idx_spec_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).ext).wav)[idx_rmv_sed])(idx_spec_hdn),(((*(*!dustem_show).ext).values)[idx_rmv_sed])(idx_spec_hdn)-rms,(((*(*!dustem_show).ext).values)[idx_rmv_sed])(idx_spec_hdn)+rms,color='Black'
                        endif                                            

                        if ct_filt_hdn then begin
                        ;Plotting of hidden filter data points 

                            cgoplot,1/(((*(*!dustem_show).ext).wav)[idx_rmv_sed])(idx_filt_hdn),(((*(*!dustem_show).ext).values)[idx_rmv_sed])(idx_filt_hdn),pos=position[0],/ylog,/xlog,ys=8,xs=8,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=16,syms=0.8                                           

                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).ext).sigma)[idx_rmv_sed])(idx_filt_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).ext).wav)[idx_rmv_sed])(idx_filt_hdn),(((*(*!dustem_show).ext).values)[idx_rmv_sed])(idx_filt_hdn)-rms,(((*(*!dustem_show).ext).values)[idx_rmv_sed])(idx_filt_hdn)+rms,color='Black'

                            
                        endif

                                                       
                    endif    
                
                endif        
              
            end
            
            ;DONE BUT NOT TESTED
            'POLEXT': begin 
                
                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.polext.xr
                yr = !dustem_plot_range.polext.yr
                
                idx_filt=where((*(*!dustem_data).polext).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).polext).filt_names EQ 'SPECTRUM',ct_spec)
                        

                
                If n_elements(position) GT 1 THEN BEGIN
                
                    ;Plotting of refreshed data in normalized plot
                    if keyword_set(refresh) then begin ;The data points in the plot that are being refreshed 

                        ;Making sure we're placed in the normalized plot
                        cgplot,1/vectw,vectx,/xlog,/nodata,/ys,xs=1,pos=position[1],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,charsize=1.0

                        IF ct_spec NE 0 THEN BEGIN
                            
                            xx=((*(*!dustem_data).polext).wav)[idx_spec]
                            yy=dustem_interp[idx_spec]
                            rms=2.*((*(*!dustem_data).polext).sigma)(idx_spec)/2.
                            indzero = where(yy NE 0, ct_zero)
                            
                            IF ct_zero NE 0 THEN BEGIN
                            
                                cgoplot,(1/xx)[indzero],(((*(*!dustem_data).polext).values)[idx_spec])[indzero]/yy[indzero],color='Powder Blue',psym=16,syms=0.8,noerase=1,pos=position[1]
                                cgerrplot,(1/((*(*!dustem_data).polext).wav)(idx_spec))[indzero],((((*(*!dustem_data).polext).values)[idx_spec])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).polext).values)[idx_spec])[indzero]+rms[indzero])/yy[indzero],color='Powder Blue'
                            
                            ENDIF

                        ENDIF

                        IF ct_filt NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).polext).wav)[idx_filt]
                            yy=dustem_interp[idx_filt]
                            rms=2.*((*(*!dustem_data).polext).sigma)(idx_filt)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                             
                                cgoplot,(1/xx)[indzero],(((*(*!dustem_data).polext).values)[idx_filt])[indzero]/yy[indzero],psym=16,color='Dodger Blue',syms=0.8,noerase=1,pos=position[1]
                                cgerrplot,(1/((*(*!dustem_data).polext).wav)(idx_filt))[indzero],((((*(*!dustem_data).polext).values)[idx_filt])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).polext).values)[idx_filt])[indzero]+rms[indzero])/yy[indzero],color='Dodger Blue'
                            
                            ENDIF

                        ENDIF

                            
                    ;Plotting of frozen data in normalized plot    
                    endif else begin 

                        xtit=textoidl('1/\lambda (\mum^{-1})')
                        if !run_pol then xtit = ''
                        cgplot,1/vectw,vectx,/xlog,/ys,xs=1,pos=position[1],noerase=1,xtickformat='(A1)',color='Black',xr=xr,xtit=xtit,yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,ytickformat='(F6.2)',charsize=1.0
                        xyouts,pospltxt_n[0],pospltxt_n[1],textoidl('norm'),color=0,/normal,charsize=1.1

                    endelse
                ENDIF

                ;Plotting of refreshed data in normal plot

                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed

                    ;Making sure we're placed in the normal plot
                    cgplot,1/vectw,vectx,/nodata,/xlog,/ylog,/ys,xs=1,pos=position[0],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=yr,yticks=2,ymino=2,xticklen=0.1,charsize=1.0

                    
                    ;Plotting of the spectra of the dust species
                    FOR i=0L,Ngrains-1 DO BEGIN
                        vecto = transpose(((st.polext.(1))[i,*]+(st.polext.(2))[i,*]))
                        cgoplot,1/st.polext.wav,vecto*(*!dustem_HCD)/1.0e21,color=use_cols[i],pos=position[0],noerase=1
                    ENDFOR
                    
                    ;stop
                                            
                    ;Plotting of the plugins.
                    for i=0L,n_plgns-1 do begin
                        If isa((*!dustem_plugin).(0).spec) then begin
                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLEXT') THEN begin
                                cgoplot,1/st.polext.wav,sqrt(((*(*!dustem_plugin).(i).spec)[*,1])^2+((*(*!dustem_plugin).(i).spec)[*,2])^2),color=clrs_plgns[i],pos=position[0],noerase=1,linestyle=2               
                            ENDIF 
                        endif
                    endfor
                                            
                    ;PLotting of the interpolates corresponding to spectrum and filter points
                       
                    IF ct_spec NE 0 THEN BEGIN
                    
                        xx=((*(*!dustem_data).polext).wav)[idx_spec]
                        yy=dustem_interp[idx_spec]
                        cgoplot,1/xx,yy,color='Indian Red',pos=position[0],psym=7,syms=2,noerase=1   
                    ENDIF
                    
                    
                    IF ct_filt NE 0 THEN BEGIN
                        xx=((*(*!dustem_data).polext).wav)[idx_filt]
                        yy=dustem_interp[idx_filt]
                        cgoplot,1/xx,yy,color='red',pos=position[0],psym=6,syms=2,noerase=1
                    ENDIF
                    
                    ;Plotting of the total dust emission spectru
                    cgoplot,1/st.polext.wav,dustem_spec,pos=position[0],noerase=1,/xlog,/ys,/xs,/ylog
                   
                ;Plotting of frozen data in normal plot            
                endif else begin 
                    
                    ;Spectrum points are treated before for plotting reasons. 
                    if ct_spec ne 0 then begin 

                        ;Plotting of spectrum data points (to be fitted)
                        cgplot,1/((*(*!dustem_data).polext).wav)(idx_spec),((*(*!dustem_data).polext).values)(idx_spec),/ylog,/xlog,/ys,xs=9,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=8,syms=0.8,ytickformat='dstmwrp_exp'                

                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).polext).sigma)(idx_spec)/2.
                        cgerrplot,1/((*(*!dustem_data).polext).wav)(idx_spec),((*(*!dustem_data).polext).values)(idx_spec)-rms,((*(*!dustem_data).polext).values)(idx_spec)+rms,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                        plotsym,0,/fill
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         
                        if ct_spec ne 0 then cgoplot,1/((*(*!dustem_data).polext).wav)(idx_filt),((*(*!dustem_data).polext).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=8,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog else $
                            cgplot,1/((*(*!dustem_data).polext).wav)(idx_filt),((*(*!dustem_data).polext).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=8,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog

                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).polext).sigma)(idx_filt)/2.;/dustem_polsed(idx_filt)
                        cgerrplot,1/((*(*!dustem_data).polext).wav)(idx_filt),((*(*!dustem_data).polext).values)(idx_filt)-rms,((*(*!dustem_data).polext).values)(idx_filt)+rms,color='Dodger Blue'

                    endif
                    
                    
                    ;Plotting of frequency axis
                    IF !dustemwrap_which_language NE 'fawlty' THEN BEGIN
                        axis, xaxis=1, xlog=1, xs=1, xminor=10, xticklen=0.05, xrange=((!const.c*1E6*xr)*1E-9),charsize=1.15,xtitle=textoidl('\nu (GHz)'),color=0
                    ENDIF
                    xyouts,pospltxt[0],pospltxt[1],textoidl('\tau_{PEXT}'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    match2,((*(*!dustem_data).polext).wav),((*(*!dustem_show).polext).wav),show_polsedpts,fit_polsedpts ;only show_polsedpts is needed
                    idx_rmv_polsed=where(fit_polsedpts eq -1, ct_hdnpts) ; indices of the points to hide  - not renaming this and keeping the polsed notation
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where((((*(*!dustem_show).polext).filt_names))(idx_rmv_polsed) NE 'SPECTRUM',ct_filt_hdn)
                    idx_spec_hdn = where(((*(*!dustem_show).polext).filt_names)(idx_rmv_polsed) EQ 'SPECTRUM',ct_spec_hdn)
                    
                    ;stop
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 
                        ;stop

                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points
                            cgoplot,1/(((*(*!dustem_show).polext).wav)[idx_rmv_polsed])(idx_spec_hdn),(((*(*!dustem_show).polext).values)[idx_rmv_polsed])(idx_spec_hdn),pos=position[0],/ylog,/xlog,/ys,xs=9,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8

                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).polext).sigma)[idx_rmv_polsed])(idx_spec_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).polext).wav)[idx_rmv_polsed])(idx_spec_hdn),(((*(*!dustem_show).polext).values)[idx_rmv_polsed])(idx_spec_hdn)-rms,(((*(*!dustem_show).polext).values)[idx_rmv_polsed])(idx_spec_hdn)+rms,color='Black'
                        endif                                            

                        if ct_filt_hdn ne 0 then begin
                        ;Plotting of hidden filter data points 
                            cgoplot,1/(((*(*!dustem_show).polext).wav)[idx_rmv_polsed])(idx_filt_hdn),(((*(*!dustem_show).polext).values)[idx_rmv_polsed])(idx_filt_hdn),pos=position[0],/ylog,/xlog,/ys,xs=9,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8                                           

                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).polext).sigma)[idx_rmv_polsed])(idx_filt_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).polext).wav)[idx_rmv_polsed])(idx_filt_hdn),(((*(*!dustem_show).polext).values)[idx_rmv_polsed])(idx_filt_hdn)-rms,(((*(*!dustem_show).polext).values)[idx_rmv_polsed])(idx_filt_hdn)+rms,color='Black'

                            
                        endif

                                                       
                    endif    

                endelse 
              
            end
            
            ;Done but not tested.
            'POLSED': begin 

                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.polsed.xr
                yr = !dustem_plot_range.polsed.yr

                idx_filt=where((*(*!dustem_data).polsed).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).polsed).filt_names EQ 'SPECTRUM',ct_spec)
                

                
                
                If n_elements(position) GT 1 THEN BEGIN
                    ;Refreshing of normalized plot        
                    if keyword_set(refresh) then begin ;The data points in the plot that are being refreshed 
                        
                        ;making sure we're in the normalized plot
                        cgplot,vectw,vectx,/nodata,/xlog,xs=5,ys=5,pos=position[1],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,charsize=1.0
                        
                        ;I think the fact we use the position keyword here might mean we can omit it in the following lines but I haven't tried removing it yet.
                        IF ct_spec NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).polsed).wav)[idx_spec]
                            yy=dustem_interp[idx_spec]
                            rms=2.*((*(*!dustem_data).polsed).sigma)(idx_spec)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,xx[indzero],(((*(*!dustem_data).polsed).values)[idx_spec])[indzero]/yy[indzero],color='Powder Blue',psym=16,syms=0.8,noerase=1,pos=position[1]
                                cgerrplot,(((*(*!dustem_data).polsed).wav)(idx_spec))[indzero],((((*(*!dustem_data).polsed).values)[idx_spec])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).polsed).values)[idx_spec])[indzero]+rms[indzero])/yy[indzero],color='Powder Blue'
                            ENDIF

                        ENDIF

                        
                        IF ct_filt NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).polsed).wav)[idx_filt]
                            yy=dustem_interp[idx_filt]
                            rms=2.*((*(*!dustem_data).polsed).sigma)(idx_filt)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN 
                                cgoplot,xx[indzero],(((*(*!dustem_data).polsed).values)[idx_filt])[indzero]/yy[indzero],psym=16,color='Dodger Blue',syms=0.8,noerase=1,pos=position[1]
                                cgerrplot,(((*(*!dustem_data).polsed).wav)(idx_filt))[indzero],((((*(*!dustem_data).polsed).values)[idx_filt])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).polsed).values)[idx_filt])[indzero]+rms[indzero])/yy[indzero],color='Dodger Blue';,/overplot 
                            ENDIF

                        ENDIF

                            
                    ;plotting of frozen data points in normalized plot    
                    endif else begin ;The data points in the plot that remain unchanged ; UNNECESSARY BLOCK but needed to limit erros when calls are made with missing keywords.

                        xtit=textoidl('\lambda (\mum)')
                        if !run_pol then xtit = ''
                        cgplot,vectw,vectx,/xlog,/ys,xs=1,pos=position[1],noerase=1,xtickformat='(A1)',color='Black',xr=xr,xtit=xtit,yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,ytickformat='(F6.2)',charsize=1.0
                        xyouts,pospltxt_n[0],pospltxt_n[1],textoidl('norm'),color=0,/normal,charsize=1.1

                    endelse
                ENDIF

                ;Plotting the refreshed data in the normal plot                       
                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed

                    ;making sure we're placed in the normal window
                    
                    cgplot,vectw,vectx,/nodata,/xlog,/ylog,xs=5,ys=5,pos=position[0],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=yr,yticks=2,ymino=2,xticklen=0.1,charsize=1.0
                    
                    
                    ;Plotting of the spectra of the dust species
                    FOR i=0L,Ngrains-1 DO BEGIN
                        cgoplot,st.polsed.wav,st.polsed.(i+1)*fact,color=use_cols[i],pos=position[0],noerase=1
                    ENDFOR
                    
                                            
                    ;Plotting of the plugins.
                    for i=0L,n_plgns-1 do begin
                        If isa((*!dustem_plugin).(i).spec) then begin
                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin
                                cgoplot,st.polsed.wav,sqrt(((*(*!dustem_plugin).(i).spec)[*,1])^2+((*(*!dustem_plugin).(i).spec)[*,2])^2),color=clrs_plgns[i],pos=position[0],noerase=1,linestyle=2               
                            ENDIF 
                        endif
                    endfor
                   
                    ;PLotting of the interpolates corresponding to spectrum and filter points
                       
                    IF ct_spec NE 0 THEN BEGIN
                    
                        xx=((*(*!dustem_data).polsed).wav)[idx_spec]
                        yy=dustem_interp[idx_spec]
                        cgoplot,xx,yy,color='Indian Red',pos=position[0],psym=7,syms=2,noerase=1   

                    ENDIF

                    IF ct_filt NE 0 THEN BEGIN
                        xx=((*(*!dustem_data).polsed).wav)[idx_filt]
                        yy=dustem_interp[idx_filt]
                        cgoplot,xx,yy,color='red',pos=position[0],psym=6,syms=2,noerase=1
                    ENDIF

                    ;Plotting of the total dust emission spectru
                    cgoplot,st.polsed.wav,dustem_spec,pos=position[0],noerase=1,/xlog,/ys,/xs,/ylog
                                    
                ;Plotting of frozen data in normal plot            
                endif else begin 

                    ;Spectrum points are treated before for plotting reasons. 
                    if ct_spec ne 0 then begin 

                        ;Plotting of spectrum data points (to be fitted)
                        cgplot,((*(*!dustem_data).polsed).wav)(idx_spec),((*(*!dustem_data).polsed).values)(idx_spec),/ylog,/xlog,/ys,xs=9,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=8,syms=0.8,ytickformat='dstmwrp_exp'                

                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).polsed).sigma)(idx_spec)/2.
                        cgerrplot,((*(*!dustem_data).polsed).wav)(idx_spec),((*(*!dustem_data).polsed).values)(idx_spec)-rms,((*(*!dustem_data).polsed).values)(idx_spec)+rms,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                        plotsym,0,/fill
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         
                        if ct_spec ne 0 then cgoplot,((*(*!dustem_data).polsed).wav)(idx_filt),((*(*!dustem_data).polsed).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=8,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog else $
                            cgplot,((*(*!dustem_data).polsed).wav)(idx_filt),((*(*!dustem_data).polsed).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=8,syms=0.8,pos=position[0],/ys,xs=9,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,ytickformat='dstmwrp_exp',/ylog,/xlog

                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).polsed).sigma)(idx_filt)/2.;/dustem_polsed(idx_filt)
                        cgerrplot,((*(*!dustem_data).polsed).wav)(idx_filt),((*(*!dustem_data).polsed).values)(idx_filt)-rms,((*(*!dustem_data).polsed).values)(idx_filt)+rms,color='Dodger Blue'

                    endif
                    
                    
                    ;Plotting of frequency axis
                    IF !dustemwrap_which_language NE 'fawlty' THEN BEGIN
                        axis, xaxis=1, xlog=1, xs=1, xminor=10, xticklen=0.05, xrange=((!const.c*1E6/(xr))*1E-9),charsize=1.15,xtitle=textoidl('\nu (GHz)'),color=0
                    ENDIF
                    xyouts,pospltxt[0],pospltxt[1],textoidl('P_{\nu} (MJy/sr)'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    match2,((*(*!dustem_data).polsed).wav),((*(*!dustem_show).polsed).wav),show_polsedpts,fit_polsedpts ;only show_polsedpts is needed
                    idx_rmv_polsed=where(fit_polsedpts eq -1, ct_hdnpts) ; indices of the points to hide
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where((((*(*!dustem_show).polsed).filt_names))(idx_rmv_polsed) NE 'SPECTRUM',ct_filt_hdn)
                    idx_spec_hdn = where(((*(*!dustem_show).polsed).filt_names)(idx_rmv_polsed) EQ 'SPECTRUM',ct_spec_hdn)
                    
                    ;stop
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 
                        ;stop

                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points
                            cgoplot,(((*(*!dustem_show).polsed).wav)[idx_rmv_polsed])(idx_spec_hdn),(((*(*!dustem_show).polsed).values)[idx_rmv_polsed])(idx_spec_hdn),pos=position[0],/ylog,/xlog,/ys,xs=9,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8

                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).polsed).sigma)[idx_rmv_polsed])(idx_spec_hdn)/2.
                            cgerrplot,(((*(*!dustem_show).polsed).wav)[idx_rmv_polsed])(idx_spec_hdn),(((*(*!dustem_show).polsed).values)[idx_rmv_polsed])(idx_spec_hdn)-rms,(((*(*!dustem_show).polsed).values)[idx_rmv_polsed])(idx_spec_hdn)+rms,color='Black'
                        endif                                            

                        if ct_filt_hdn ne 0 then begin
                        ;Plotting of hidden filter data points 
                            cgoplot,(((*(*!dustem_show).polsed).wav)[idx_rmv_polsed])(idx_filt_hdn),(((*(*!dustem_show).polsed).values)[idx_rmv_polsed])(idx_filt_hdn),pos=position[0],/ylog,/xlog,/ys,xs=9,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8                                           

                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).polsed).sigma)[idx_rmv_polsed])(idx_filt_hdn)/2.
                            cgerrplot,(((*(*!dustem_show).polsed).wav)[idx_rmv_polsed])(idx_filt_hdn),(((*(*!dustem_show).polsed).values)[idx_rmv_polsed])(idx_filt_hdn)-rms,(((*(*!dustem_show).polsed).values)[idx_rmv_polsed])(idx_filt_hdn)+rms,color='Black'

                            
                        endif

                                                       
                    endif    

                endelse 
            

            end

            ;DONE BUT NOT TESTED...

            'POLFRAC': begin 
                
                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.polfrac.xr
                yr = !dustem_plot_range.polfrac.yr
                
                idx_filt=where((*(*!dustem_data).polfrac).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).polfrac).filt_names EQ 'SPECTRUM',ct_spec)

                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed
                    
                    ;making sure we're refreshing the right dataset
                    
                    cgplot,vectw,vectx,/nodata,/xlog,/ylog,/ys,xs=1,pos=position[0],noerase=1,charsize=1.15,xtickformat='(A1)',ytickformat='(A1)',color='Powder Blue',xr=xr,xtit='',yr=yr,psym=8,syms=0.8  
                    
                    FOR i=0L,Ngrains-1 DO BEGIN

                        testneq = where(st.polsed.(i+1) ne 0,countneq)

                        if countneq ne 0 then begin 
                            vecfin = st.polsed.(i+1)*0.0

                            vecfin[testneq] = ((st.polsed.(i+1))[testneq])*fact[testneq]/extra_spec[testneq];(st.sed.em_tot)[testneq];;(st.sed.em_tot)[testneq];spec[testneq];(st.sed.(i+1))[testneq];*fact;(st.sed.(i+1))[testneq]

                            cgoplot,st.polsed.wav,vecfin*100,pos=position[0],noerase=1,color=use_cols[i],xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                        endif   
                    ENDFOR
                   
                    ;Plotting of the plugins. 
                     
                    for i=0L,n_plgns-1 do begin

                        if isa((*!dustem_plugin).(i).spec) then begin

                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin
                                vecfin = st.polsed.em_tot*0.0
                                vecfin[testneq] = sqrt((((*(*!dustem_plugin).(i).spec)[*,1])^2)[testneq]+(((*(*!dustem_plugin).(i).spec)[*,2])^2)[testneq])/extra_spec[testneq];((*(*!dustem_plugin).(i).spec)[*,0])[testneq]        
                                cgoplot,st.polsed.wav,vecfin*100,color=clrs_plgns[i],pos=position[0],noerase=1,linestyle=2               

                            ENDIF

                        endif
                        

                    endfor

                     ;PLotting of the interpolates corresponding to spectrum and filter points
                    
                     IF ct_spec NE 0 THEN BEGIN
                     
                         xx=((*(*!dustem_data).polfrac).wav)[idx_spec]
                         yy=dustem_interp[idx_spec]
                         cgoplot,xx,yy*100,color='Indian Red',pos=position[0],psym=7,syms=2,noerase=1   
                     ENDIF
                     
                     
                     IF ct_filt NE 0 THEN BEGIN
                         xx=((*(*!dustem_data).polfrac).wav)[idx_filt]
                         yy=dustem_interp[idx_filt]
                         cgoplot,xx,yy*100,color='red',pos=position[0],psym=6,syms=2,noerase=1
                     ENDIF
                     
                     
                     ;Plotting of the total dust emission spectrum
                     cgoplot,st.polsed.wav,dustem_spec*100,pos=position[0],noerase=1,/xlog,/ys,/xs               

                endif else begin ;The data points in the plot that remain unchanged.
                    
                    ;Spectrum points are treated before for plotting reasons. 
                    
                    if ct_spec ne 0 then begin 

                        ;Plotting of spectrum data points (to be fitted)
                        cgplot,((*(*!dustem_data).polfrac).wav)(idx_spec),((*(*!dustem_data).polfrac).values)(idx_spec)*100,/xlog,/ylog,/ys,xs=1,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=16,syms=0.8;,ytickformat='dstmwrp_exp'                

                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).polfrac).sigma)(idx_spec)/2.
                        cgerrplot,((*(*!dustem_data).polfrac).wav)(idx_spec),(((*(*!dustem_data).polfrac).values)(idx_spec)-rms)*100,(((*(*!dustem_data).polfrac).values)(idx_spec)+rms)*100,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                    
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         
                        if ct_spec ne 0 then cgoplot,((*(*!dustem_data).polfrac).wav)(idx_filt),((*(*!dustem_data).polfrac).values)(idx_filt)*100,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,/xlog,/ylog else $;,ytickformat='dstmwrp_exp'
                            cgplot,((*(*!dustem_data).polfrac).wav)(idx_filt),((*(*!dustem_data).polfrac).values)(idx_filt)*100,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,/xlog,/ylog;,ytickformat='dstmwrp_exp'

                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).polfrac).sigma)(idx_filt)/2.;/dustem_polfrac(idx_filt)
                        cgerrplot,((*(*!dustem_data).polfrac).wav)(idx_filt),(((*(*!dustem_data).polfrac).values)(idx_filt)-rms)*100,(((*(*!dustem_data).polfrac).values)(idx_filt)+rms)*100,color='Dodger Blue'

                    endif
                    
                    
                    
                    xyouts,pospltxt[0],pospltxt[1],textoidl('p (%)'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    
                    ;The filtering has been done prior (in the primary routine)
                    match2,((*(*!dustem_data).polfrac).wav),((*(*!dustem_show).polfrac).wav),show_polfracpts,fit_polfracpts ;only show_polfracpts is needed
                    idx_rmv_polfrac=where(fit_polfracpts eq -1, ct_hdnpts) ; indices of the points to hide
                    ;stop
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where(((*(*!dustem_show).polfrac).filt_names)(idx_rmv_polfrac) NE 'SPECTRUM',ct_filt_hdn)
                    idx_spec_hdn = where(((*(*!dustem_show).polfrac).filt_names)(idx_rmv_polfrac) EQ 'SPECTRUM',ct_spec_hdn)
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 
                        ;stop

                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points
                            cgplot,(((*(*!dustem_show).polfrac).wav)[idx_rmv_polfrac])(idx_spec_hdn),(((*(*!dustem_show).polfrac).values)[idx_rmv_polfrac])(idx_spec_hdn)*100,pos=position[0],/xlog,/ylog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8
                            
                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).polfrac).sigma)[idx_rmv_polfrac])(idx_spec_hdn)/2.
                            cgerrplot,(((*(*!dustem_show).polfrac).wav)[idx_rmv_polfrac])(idx_spec_hdn),((((*(*!dustem_show).polfrac).values)[idx_rmv_polfrac])(idx_spec_hdn)-rms)*100,((((*(*!dustem_show).polfrac).values)[idx_rmv_polfrac])(idx_spec_hdn)+rms)*100,color='Black'
                        endif                                           

                        if ct_filt_hdn ne 0 then begin

                            ;stop

                            plotsym,0, /fill
                            ;Plotting of hidden filter data points 
                            cgplot,(((*(*!dustem_show).polfrac).wav)[idx_rmv_polfrac])(idx_filt_hdn),(((*(*!dustem_show).polfrac).values)[idx_rmv_polfrac])(idx_filt_hdn)*100,pos=position[0],/xlog,/ylog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8                                           
                            ;stop
                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).polfrac).sigma)[idx_rmv_polfrac])(idx_filt_hdn)/2.
                            cgerrplot,(((*(*!dustem_show).polfrac).wav)[idx_rmv_polfrac])(idx_filt_hdn),((((*(*!dustem_show).polfrac).values)[idx_rmv_polfrac])(idx_filt_hdn)-rms)*100,((((*(*!dustem_show).polfrac).values)[idx_rmv_polfrac])(idx_filt_hdn)+rms)*100,color='Black'
                             

                        endif 

                                                       
                    endif 

                endelse 

            end

            ;DONE BUT NOT TESTED.
            'FPOLEXT': BEGIN ; For completeness (not sure of the physical usefulness of this qauntity )
                
                
                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.fpolext.xr
                yr = !dustem_plot_range.fpolext.yr

                
                idx_filt=where((*(*!dustem_data).fpolext).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).fpolext).filt_names EQ 'SPECTRUM',ct_spec)
                

                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed
                    
                    ;making sure we're plotting in the refreshed plot

                    cgplot,1/vectw,vectx,/xlog,/ylog,/nodata,/ys,xs=1,pos=position[0],noerase=1,xtickformat='(A1)',ytickformat='(A1)',color='Black',xr=xr,xtit='',yr=yr,yticks=2,ymino=2,xticklen=0.1,charsize=1.0

                    
                    FOR i=0L,Ngrains-1 DO BEGIN

                        vecto = transpose((st.polext.(1))[i,*]+(st.polext.(2))[i,*])

                        testneq = where(vecto ne 0,countneq)
                        
                        if countneq ne 0 then begin 
                            vecfin = vecto*0.0

                            vecfin[testneq] = (vecto[testneq])*(*!dustem_HCD)/1.0e21/extra_spec[testneq];(st.sed.em_tot)[testneq];spec[testneq];(st.sed.(i+1))[testneq];*fact;(st.sed.(i+1))[testneq]
                             
                            cgoplot,1/st.polext.wav,vecfin*100,pos=position[0],noerase=1,color=use_cols[i],xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                        endif   
                    ENDFOR
                   
                    ;Plotting of the plugins. 
                     
                    for i=0L,n_plgns-1 do begin

                        if isa((*!dustem_plugin).(0).spec) then begin

                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLEXT') THEN begin
                                vecfin = st.polext.ext_tot*0.0
                                vecfin[testneq] = sqrt((((*(*!dustem_plugin).(i).spec)[*,1])^2)[testneq]+(((*(*!dustem_plugin).(i).spec)[*,2])^2)[testneq])/((*(*!dustem_plugin).(i).spec)[*,0])[testneq]        
                                cgoplot,1/st.polext.wav,vecfin*100,color=clrs_plgns[i],pos=position[0],noerase=1,linestyle=2               

                            ENDIF

                        endif
                        

                    endfor
                   
                     ;PLotting of the interpolates corresponding to spectrum and filter points
                    
                     IF ct_spec NE 0 THEN BEGIN
                     
                         xx=((*(*!dustem_data).fpolext).wav)[idx_spec]
                         yy=dustem_interp[idx_spec]
                         cgoplot,1/xx,yy*100,color='Indian Red',pos=position[0],psym=7,syms=2,noerase=1   
                     ENDIF
                     
                     
                     IF ct_filt NE 0 THEN BEGIN
                         xx=((*(*!dustem_data).fpolext).wav)[idx_filt]
                         yy=dustem_interp[idx_filt]
                         cgoplot,1/xx,yy*100,color='red',pos=position[0],psym=6,syms=2,noerase=1
                     ENDIF
                     
                     
                     ;Plotting of the total dust emission spectrum
                     cgoplot,1/st.polext.wav,dustem_spec*100,pos=position[0],noerase=1,/xlog,/ys,/xs
                                    
                            
                endif else begin ;The data points in the plot that remain unchanged.
                     
                    
                    ;Spectrum points are treated before for plotting reasons. 
                    
                    if ct_spec ne 0 then begin 

                        ;Plotting of spectrum data points (to be fitted)
                        cgplot,1/((*(*!dustem_data).fpolext).wav)(idx_spec),((*(*!dustem_data).fpolext).values)(idx_spec)*100,/xlog,/ylog,/ys,xs=1,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=16,syms=0.8;,ytickformat='dstmwrp_exp'                

                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).fpolext).sigma)(idx_spec)/2.
                        cgerrplot,1/((*(*!dustem_data).fpolext).wav)(idx_spec),(((*(*!dustem_data).fpolext).values)(idx_spec)-rms)*100,(((*(*!dustem_data).fpolext).values)(idx_spec)+rms)*100,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                    
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         
                        if ct_spec ne 0 then cgoplot,1/((*(*!dustem_data).fpolext).wav)(idx_filt),((*(*!dustem_data).fpolext).values)(idx_filt)*100,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,/xlog,/ylog else $;,ytickformat='dstmwrp_exp'
                            cgplot,1/((*(*!dustem_data).fpolext).wav)(idx_filt),((*(*!dustem_data).fpolext).values)(idx_filt)*100,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,/xlog,/ylog;,ytickformat='dstmwrp_exp'
                        
                        
                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).fpolext).sigma)(idx_filt)/2.;/dustem_polfrac(idx_filt)
                        cgerrplot,1/((*(*!dustem_data).fpolext).wav)(idx_filt),(((*(*!dustem_data).fpolext).values)(idx_filt)-rms)*100,(((*(*!dustem_data).fpolext).values)(idx_filt)+rms)*100,color='Dodger Blue'

                    endif
                    
                    xyouts,pospltxt[0],pospltxt[1],textoidl('\tau_{PEXT}/\tau_{EXT} (%)'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    
                    ;The filtering has been done prior (in the primary routine)
                    match2,((*(*!dustem_data).fpolext).wav),((*(*!dustem_show).fpolext).wav),show_polfracpts,fit_polfracpts ;only show_polfracpts is needed
                    idx_rmv_polfrac=where(fit_polfracpts eq -1, ct_hdnpts) ; indices of the points to hide; 
                    
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where(((*(*!dustem_show).fpolext).filt_names)(idx_rmv_polfrac) NE 'SPECTRUM',ct_filt_hdn)
                    idx_spec_hdn = where(((*(*!dustem_show).fpolext).filt_names)(idx_rmv_polfrac) EQ 'SPECTRUM',ct_spec_hdn)
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 

                        ;stop

                        
                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points
                            cgplot,1/(((*(*!dustem_show).fpolext).wav)[idx_rmv_polfrac])(idx_spec_hdn),(((*(*!dustem_show).fpolext).values)[idx_rmv_polfrac])(idx_spec_hdn)*100,pos=position[0],/xlog,/ylog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8

                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).fpolext).sigma)[idx_rmv_polfrac])(idx_spec_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).fpolext).wav)[idx_rmv_polfrac])(idx_spec_hdn),((((*(*!dustem_show).fpolext).values)[idx_rmv_polfrac])(idx_spec_hdn)-rms)*100,((((*(*!dustem_show).fpolext).values)[idx_rmv_polfrac])(idx_spec_hdn)+rms)*100,color='Black'
                        endif                                           
                        
                        if ct_filt_hdn ne 0 then begin
                            ;stop
                            plotsym,0, /fill
                            ;Plotting of hidden filter data points 
                            cgplot,1/(((*(*!dustem_show).fpolext).wav)[idx_rmv_polfrac])(idx_filt_hdn),(((*(*!dustem_show).fpolext).values)[idx_rmv_polfrac])(idx_filt_hdn)*100,pos=position[0],/xlog,/ylog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8                                           
                            ;stop
                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).fpolext).sigma)[idx_rmv_polfrac])(idx_filt_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).fpolext).wav)[idx_rmv_polfrac])(idx_filt_hdn),((((*(*!dustem_show).fpolext).values)[idx_rmv_polfrac])(idx_filt_hdn)-rms)*100,((((*(*!dustem_show).fpolext).values)[idx_rmv_polfrac])(idx_filt_hdn)+rms)*100,color='Black'
                             

                        endif 

                                                       
                    endif 
                
                endelse 

            END

             
            'PSI_EM': begin ;will be copying code from qsed and hopefully it will work. NB: THIS IS FALSE . YOU DO NOT NEED A LOGARITHMIC AXIS
                
         
                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.psi_em.xr
                yr = !dustem_plot_range.psi_em.yr
                
                idx_filt=where((*(*!dustem_data).psi_em).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).psi_em).filt_names EQ 'SPECTRUM',ct_spec)
                            
                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed
                    
                    ;making sure we're placed in the considered plot.
                    cgplot,vectw,vectx,/nodata,/xlog,xs=5,ys=5,pos=position[0],noerase=1,charsize=1.15,xtickformat='(A1)',ytickformat='(A1)',color='Powder Blue',xr=xr,xtit='',yr=yr,psym=8,syms=0.8
                    
                    ;Plotting of the spectra of the dust species
                    FOR i=0L,Ngrains-1 DO BEGIN
                        testneq = where(st.polsed.(i+1) ne 0,countneq)
                        if countneq ne 0 then begin
                            vecfin = st.polsed.(i+1)*0.0

                            vecfin[testneq] = ((st.polsed.(i+1))[testneq])/(st.sed.(i+1))[testneq];extra_spec[testneq];(st.sed.em_tot)[testneq];spec[testneq] ;removed multiplication by 'fact'. 

                            ;*****NB: These two lines will have to be modified if the polarization angle varies with the dust species and/or with wavelength
                            polar_ippsi2iqu,st.sed.(i+1)*fact,specqgrain,specugrain,vecfin,replicate(!dustem_psi,n_elements(vecfin)) ;temporary solution

                            ;You can replace the -0 values by 0 in order to avoid atan giving wrong values 
                            testnzero = where(specqgrain EQ -0., ct_nzero)
                            if ct_nzero ne 0 then specqgrain[testnzero] = 0

                            cgoplot,st.polsed.wav,0.5*atan(specugrain, specqgrain)/!dtor,pos=position[0],noerase=1,color=use_cols[i],xr=xr,/xlog,ytickformat='(A1)',yr=yr
                            ;cgoplot,st.polsed.wav,replicate(!dustem_psi,n_elements(vecfin)),pos=position,noerase=1,color=use_cols[i],xr=xr,/xlog,ytickformat='(A1)',yr=[-90.00,90.00]
                            
                        endif 
                    ENDFOR
                                                                    
                    ;Plotting of the plugins.
                    for i=0L,n_plgns-1 do begin
                        
                        if isa((*!dustem_plugin).(0).spec) then begin
                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin
                                ;dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i))[*,1],ppositions=position, /overplot, noerase=1, color=clrs_plgns[i], linestyle=2,xr=xr,/xlog
                                cgoplot,st.polsed.wav,0.5*atan((*(*!dustem_plugin).(i).spec)[*,2],(*(*!dustem_plugin).(i).spec)[*,1])/!dtor,pos=position[0],noerase=1, color=clrs_plgns[i], linestyle=2 ,xr=xr,/xlog,ytickformat='(A1)',yr=yr   

                            ENDIF

                        ENDIF
                    endfor
                    
                     ;PLotting of the interpolates corresponding to spectrum and filter points
                    
                     IF ct_spec NE 0 THEN BEGIN
                     
                         xx=((*(*!dustem_data).psi_em).wav)[idx_spec]
                         yy=dustem_interp[idx_spec]
                         cgoplot,xx,yy,color='Indian Red',pos=position[0],psym=7,syms=2,noerase=1   
                     ENDIF
                     
                     
                     IF ct_filt NE 0 THEN BEGIN
                         xx=((*(*!dustem_data).psi_em).wav)[idx_filt]
                         yy=dustem_interp[idx_filt]
                         cgoplot,xx,yy,color='red',pos=position[0],psym=6,syms=2,noerase=1
                     ENDIF
                     
                     
                     ;Plotting of the total dust emission spectrum
                     ;cgoplot,st.sed.wav,0.5*atan(specu,specq)/!dtor,pos=position,noerase=1,/xlog,/ys,/xs
                     cgoplot,st.sed.wav,dustem_spec,pos=position[0],noerase=1,/xlog,/ys,/xs               
                            
                endif else begin ;The data points in the plot that remain unchanged.
                     
                    
                    ;Spectrum points are treated before for plotting reasons. 
                    if ct_spec ne 0 then begin 

                        ;Plotting of spectrum data points (to be fitted)
                        cgplot,((*(*!dustem_data).psi_em).wav)(idx_spec),((*(*!dustem_data).psi_em).values)(idx_spec),/xlog,/ys,xs=1,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=16,syms=0.8;,ytickformat='dstmwrp_exp'                

                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).psi_em).sigma)(idx_spec)/2.
                        cgerrplot,((*(*!dustem_data).psi_em).wav)(idx_spec),((*(*!dustem_data).psi_em).values)(idx_spec)-rms,((*(*!dustem_data).psi_em).values)(idx_spec)+rms,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                    
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         
                        if ct_spec ne 0 then cgoplot,((*(*!dustem_data).psi_em).wav)(idx_filt),((*(*!dustem_data).psi_em).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,/xlog else $;,ytickformat='dstmwrp_exp'
                            cgplot,((*(*!dustem_data).psi_em).wav)(idx_filt),((*(*!dustem_data).psi_em).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,/xlog;,ytickformat='dstmwrp_exp'

                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).psi_em).sigma)(idx_filt)/2.;/dustem_psi_em(idx_filt)
                        cgerrplot,((*(*!dustem_data).psi_em).wav)(idx_filt),((*(*!dustem_data).psi_em).values)(idx_filt)-rms,((*(*!dustem_data).psi_em).values)(idx_filt)+rms,color='Dodger Blue'

                    endif
                    
                    xyouts,pospltxt[0],pospltxt[1],textoidl('\Psi (deg)'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    
                    ;The filtering has been done prior (in the primary routine)
                    match2,((*(*!dustem_data).psi_em).wav),((*(*!dustem_show).psi_em).wav),show_psi_empts,fit_psi_empts ;only show_psi_empts is needed
                    idx_rmv_psi_em=where(fit_psi_empts eq -1, ct_hdnpts) ; indices of the points to hide
                    ;stop
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where(((*(*!dustem_show).psi_em).filt_names)(idx_rmv_psi_em) NE 'SPECTRUM',ct_filt_hdn)
                    idx_spec_hdn = where(((*(*!dustem_show).psi_em).filt_names)(idx_rmv_psi_em) EQ 'SPECTRUM',ct_spec_hdn)
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 
                        ;stop

                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points
                            cgplot,(((*(*!dustem_show).psi_em).wav)[idx_rmv_psi_em])(idx_spec_hdn),(((*(*!dustem_show).psi_em).values)[idx_rmv_psi_em])(idx_spec_hdn),pos=position[0],/xlog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8
                            
                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).psi_em).sigma)[idx_rmv_psi_em])(idx_spec_hdn)/2.
                            cgerrplot,(((*(*!dustem_show).psi_em).wav)[idx_rmv_psi_em])(idx_spec_hdn),(((*(*!dustem_show).psi_em).values)[idx_rmv_psi_em])(idx_spec_hdn)-rms,(((*(*!dustem_show).psi_em).values)[idx_rmv_psi_em])(idx_spec_hdn)+rms,color='Black'
                        endif                                           

                        if ct_filt_hdn ne 0 then begin

                            ;stop

                            plotsym,0, /fill
                            ;Plotting of hidden filter data points 
                            cgplot,(((*(*!dustem_show).psi_em).wav)[idx_rmv_psi_em])(idx_filt_hdn),(((*(*!dustem_show).psi_em).values)[idx_rmv_psi_em])(idx_filt_hdn),pos=position[0],/xlog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8                                           
                            ;stop
                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).psi_em).sigma)[idx_rmv_psi_em])(idx_filt_hdn)/2.
                            cgerrplot,(((*(*!dustem_show).psi_em).wav)[idx_rmv_psi_em])(idx_filt_hdn),(((*(*!dustem_show).psi_em).values)[idx_rmv_psi_em])(idx_filt_hdn)-rms,(((*(*!dustem_show).psi_em).values)[idx_rmv_psi_em])(idx_filt_hdn)+rms,color='Black'
                             

                        endif 

                                                       
                    endif 

                endelse 
                   
            end

            ;DONE BUT NOT TESTED.

            'PSI_EXT': begin ;MODIFYING THIS NOW - You should write a plugin for the modification of polarized extinction so that !dustem_psi_ext is different than !dustem_psi. 

                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.psi_ext.xr
                yr = !dustem_plot_range.psi_ext.yr

                idx_filt=where((*(*!dustem_data).psi_ext).filt_names NE 'SPECTRUM',ct_filt)
                idx_spec=where((*(*!dustem_data).psi_ext).filt_names EQ 'SPECTRUM',ct_spec)

                            
                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed

                    cgplot,1/vectw,vectx,/nodata,/xlog,/ys,xs=1,pos=position[0],noerase=1,charsize=1.15,xtickformat='(A1)',ytickformat='(A1)',color='Powder Blue',xr=xr,xtit='',yr=yr,psym=8,syms=0.8

                    
                    ;##################TAKEN FROM SED
                    
                    ;Plotting of the spectra of the dust species
                    
                    FOR i=0L,Ngrains-1 DO BEGIN

                        vecto = transpose((st.polext.(1))[i,*]+(st.polext.(2))[i,*])
                        vecte = transpose(((st.ext.(1))[i,*]+(st.ext.(2))[i,*]))
                        testneq = where(vecto ne 0,countneq)

                        ;testing whether the polext values contain negative ones
                        testpos = where(vecto LT 0, countpos)
                        IF countpos NE 0 THEN vecto[testpos] = 0
                          
                        if countneq ne 0 then begin
                            
                            vecfin = vecto*0.0
                            
                            vecfin[testneq] = (vecto[testneq])/vecte[testneq];extra_spec[testneq];(st.sed.em_tot)[testneq];spec[testneq] ;removed multiplication by 'fact'. 
                            
                            polar_ippsi2iqu,vecte*(*!dustem_HCD)/1.0e21,specqgrain,specugrain,vecfin,replicate(!dustem_psi_ext,n_elements(vecfin)) ;temporary solution
                             
                            cgoplot,1/st.polext.wav,0.5*atan(specugrain,specqgrain)/!dtor,pos=position[0],noerase=1,color=use_cols[i],xr=xr,/xlog,ytickformat='(A1)',yr=yr
                        endif 
                    ENDFOR
                                                                          
                    ;Plotting of the plugins.
                    for i=0L,n_plgns-1 do begin
                        
                        if isa((*!dustem_plugin).(0).spec) then begin
                            IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLEXT') THEN begin
                                ;dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i))[*,1],ppositions=position, /overplot, noerase=1, color=clrs_plgns[i], linestyle=2,xr=xr,/xlog
                                cgoplot_mlog,1/st.polext.wav,0.5*atan((*(*!dustem_plugin).(i).spec)[*,2],(*(*!dustem_plugin).(i).spec)[*,1])/!dtor,pos=position[0],noerase=1, color=clrs_plgns[i], linestyle=2 ,xr=xr,/xlog,ytickformat='(A1)',yr=yr   

                            ENDIF
                        ENDIF

                    endfor
                    
                     ;PLotting of the interpolates corresponding to spectrum and filter points
                    
                     IF ct_spec NE 0 THEN BEGIN
                     
                         xx=((*(*!dustem_data).psi_ext).wav)[idx_spec]
                         yy=dustem_interp[idx_spec]
                         cgoplot,1/xx,yy,color='Indian Red',pos=position[0],psym=7,syms=2,noerase=1   
                     ENDIF
                     
                     
                     IF ct_filt NE 0 THEN BEGIN
                         xx=((*(*!dustem_data).psi_ext).wav)[idx_filt]
                         yy=dustem_interp[idx_filt]
                         cgoplot,1/xx,yy,color='red',pos=position[0],psym=6,syms=2,noerase=1
                     ENDIF
                     
                     ;Plotting of the total dust emission spectrum
                     ;cgoplot,st.sed.wav,0.5*atan(specu,specq)/!dtor,pos=position,noerase=1,/xlog,/ys,/xs
                     cgoplot,1/st.ext.wav,dustem_spec,pos=position[0],noerase=1,/xlog,/ys,/xs               
                            
                endif else begin ;The data points in the plot that remain unchanged.
                    
                    ;Spectrum points are treated before for plotting reasons. 
                    if ct_spec ne 0 then begin 
                        
                        ;Plotting of spectrum data points (to be fitted)
                        cgplot,1/((*(*!dustem_data).psi_ext).wav)(idx_spec),((*(*!dustem_data).psi_ext).values)(idx_spec),/xlog,/ys,xs=1,pos=position[0],noerase=1,xtit=' ',charsize=1.15,xtickformat='(A1)',color='Powder Blue',xr=xr,yr=yr,psym=16,syms=0.8;,ytickformat='dstmwrp_exp'                
                        
                        ;Plotting of the spectrum error points
                        rms=2.*((*(*!dustem_data).psi_ext).sigma)(idx_spec)/2.
                        cgerrplot,1/((*(*!dustem_data).psi_ext).wav)(idx_spec),((*(*!dustem_data).psi_ext).values)(idx_spec)-rms,((*(*!dustem_data).psi_ext).values)(idx_spec)+rms,color='Powder Blue'

                    endif
                    
                    if ct_filt ne 0 then begin
                    
                        ;Plotting of filter data points (to be fitted) + testing for prior plotting                         
                        if ct_spec ne 0 then cgoplot,1/((*(*!dustem_data).psi_ext).wav)(idx_filt),((*(*!dustem_data).psi_ext).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xr=xr,yr=yr,/xlog else $;,ytickformat='dstmwrp_exp'
                            cgplot,1/((*(*!dustem_data).psi_ext).wav)(idx_filt),((*(*!dustem_data).psi_ext).values)(idx_filt),charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,pos=position[0],/ys,xs=1,noerase=1,xtickformat='(A1)',xtit=' ',xr=xr,yr=yr,/xlog;,ytickformat='dstmwrp_exp'
                        
                        
                        ;Plotting of the filter error points
                        rms=2.*((*(*!dustem_data).psi_ext).sigma)(idx_filt)/2.;/dustem_psi_em(idx_filt)
                        cgerrplot,1/((*(*!dustem_data).psi_ext).wav)(idx_filt),((*(*!dustem_data).psi_ext).values)(idx_filt)-rms,((*(*!dustem_data).psi_ext).values)(idx_filt)+rms,color='Dodger Blue'

                    endif
                    
                    xyouts,pospltxt[0],pospltxt[1],textoidl('\Psi_{EXT} (deg)'),color=0,/normal,charsize=1.3;,charthick=2.0
                     
                    ;Locating all the hidden data points (spectrum+filter)
                    
                    ;The filtering has been done prior (in the primary routine)
                    match2,((*(*!dustem_data).psi_ext).wav),((*(*!dustem_show).psi_ext).wav),show_psi_empts,fit_psi_empts ;only show_psi_empts is needed
                    idx_rmv_psi_em=where(fit_psi_empts eq -1, ct_hdnpts) ; indices of the points to hide
                    ;stop
                    ;Locating the hidden spectrum and filter data points                                        
                    idx_filt_hdn = where(((*(*!dustem_show).psi_ext).filt_names)(idx_rmv_psi_em) NE 'SPECTRUM',ct_filt_hdn) ;keeping psi_em notation for counters...
                    idx_spec_hdn = where(((*(*!dustem_show).psi_ext).filt_names)(idx_rmv_psi_em) EQ 'SPECTRUM',ct_spec_hdn)
                    if ct_hdnpts ne 0 then begin ;Hidden data points are present 

                        ;stop

                        if ct_spec_hdn ne 0 then begin
                            ;Plotting of hidden spectrum data points
                            cgplot,1/(((*(*!dustem_show).psi_ext).wav)[idx_rmv_psi_em])(idx_spec_hdn),(((*(*!dustem_show).psi_ext).values)[idx_rmv_psi_em])(idx_spec_hdn),pos=position[0],/xlog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8
                            
                            ;Plotting of hidden spectrum error points
                            rms=2.*(((*(*!dustem_show).psi_ext).sigma)[idx_rmv_psi_em])(idx_spec_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).psi_ext).wav)[idx_rmv_psi_em])(idx_spec_hdn),(((*(*!dustem_show).psi_ext).values)[idx_rmv_psi_em])(idx_spec_hdn)-rms,(((*(*!dustem_show).psi_ext).values)[idx_rmv_psi_em])(idx_spec_hdn)+rms,color='Black'
                        endif                                           
                        
                        if ct_filt_hdn ne 0 then begin
                            ;stop
                            plotsym,0, /fill
                            ;Plotting of hidden filter data points 
                            cgplot,1/(((*(*!dustem_show).psi_ext).wav)[idx_rmv_psi_em])(idx_filt_hdn),(((*(*!dustem_show).psi_ext).values)[idx_rmv_psi_em])(idx_filt_hdn),pos=position[0],/xlog,/ys,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',color='Black',xr=xr,yr=yr,psym=8,syms=0.8                                           
                            ;stop
                            ;Plotting of hidden filter error point
                            rms=2.*(((*(*!dustem_show).psi_ext).sigma)[idx_rmv_psi_em])(idx_filt_hdn)/2.
                            cgerrplot,1/(((*(*!dustem_show).psi_ext).wav)[idx_rmv_psi_em])(idx_filt_hdn),(((*(*!dustem_show).psi_ext).values)[idx_rmv_psi_em])(idx_filt_hdn)-rms,(((*(*!dustem_show).psi_ext).values)[idx_rmv_psi_em])(idx_filt_hdn)+rms,color='Black'
                             
                        endif 
                                                       
                    endif 
                    
                endelse 
                    
            
            end
            
            
            ;DONE BUT NOT TESTED.
            'QSED': begin ; THE ONE I WILL BE WORKING ON
                
                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.qsed.xr
                yr = !dustem_plot_range.qsed.yr
                
                
                varvar=where((*(*!dustem_data).qsed).values GT 0, testpstv)
                varvar=where((*(*!dustem_data).qsed).values LT 0, testngtv)
                
                idx_filt=where((*(*!dustem_data).qsed).filt_names NE 'SPECTRUM', ct_filt)
                idx_spec=where((*(*!dustem_data).qsed).filt_names EQ 'SPECTRUM' , ct_spec)
               
                ;Locating all the hidden data points (spectrum+filter)
                match2,((*(*!dustem_data).qsed).wav),((*(*!dustem_show).qsed).wav),show_sedpts,fit_sedpts ;only show_sedpts is needed
                idx_rmv_sed=where(fit_sedpts eq -1, ct_hdnpts) ; indices of the points to hide
            

                
                If n_elements(position) GT 1 THEN BEGIN
                
                        
                    ;Plotting of the refreshed data in the normalized plot

                    if keyword_set(refresh) then begin ;The data points in the plot that are being refreshed 

                       ;Making sure we're placed in the normalized plot
                       cgplot,vectw,vectx,/nodata,/xlog,ys=5,xs=5,pos=position[1],noerase=1,charsize=1.15,xtickformat='(A1)',ytickformat='(A1)',ymin=0,color='Powder Blue',xr=xr,xtit='',yr=[0.0,2.0],psym=8,syms=0.8
                      
                        IF ct_spec NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).qsed).wav)[idx_spec]
                            yy=dustem_interp[idx_spec]
                            rms=2.*((*(*!dustem_data).qsed).sigma)(idx_spec)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,xx[indzero],(((*(*!dustem_data).qsed).values)(idx_spec))[indzero]/yy[indzero],pos=position[1],psym=16,color='Powder Blue',syms=0.8,noerase=1 
                                cgerrplot,(((*(*!dustem_data).qsed).wav)(idx_spec))[indzero],((((*(*!dustem_data).qsed).values)[idx_spec])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).qsed).values)[idx_spec])[indzero]+rms[indzero])/yy[indzero],color='Powder Blue'
                            ENDIF 

                        ENDIF

                        
                        IF ct_filt NE 0 THEN BEGIN
                            
                            xx=((*(*!dustem_data).qsed).wav)[idx_filt]
                            yy=dustem_interp[idx_filt]
                            rms=2.*((*(*!dustem_data).qsed).sigma)(idx_filt)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,xx[indzero],(((*(*!dustem_data).qsed).values)(idx_filt))[indzero]/yy[indzero],pos=position[1],psym=16,color='Dodger Blue',syms=0.8,noerase=1 
                                cgerrplot,(((*(*!dustem_data).qsed).wav)(idx_filt))[indzero],((((*(*!dustem_data).qsed).values)[idx_filt])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).qsed).values)[idx_filt])[indzero]+rms[indzero])/yy[indzero],color='Dodger Blue' 
                            ENDIF
                        ENDIF
      
                    ;Plotting of the frozen data points in the normalized plot    
                    endif else begin ;The data points in the plot that remain unchanged
                     
                        xtit=textoidl('\lambda (\mum)')
                        cgplot,vectw,vectx,/xlog,/ys,xs=1,pos=position[1],noerase=1,color='Black',xr=xr,xtit=xtit,yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,ytickformat='(F6.2)',charsize=1.0
                        xyouts,pospltxt_n[0],pospltxt_n[1],textoidl('norm'),color=0,/normal,charsize=1.1
                    
                    endelse
                ENDIF

                ;stop          
                ;refreshing of the data of the normal plot          
                if keyword_set(refresh) then begin ;The data points in the plot are being refreshed
                    
                    if positive_only EQ 1 then begin
                        
                        testsup=where(dustem_spec GT 0., countmodelsup)
                        if testpstv ne 0 or countmodelsup ne 0 then begin
                            
                            ;making sure that we're placed in the positive_only normal plot
                            dustem_plot_mlog,vectw,vectx,xs=5,ys=5,ppositions=position[0],/positive_only, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,/xlog,/ylog,yticks=0,xticks=0,xticklen=0.0,yticklen=0.0,/nodata,xtickformat='(A1)',xtit='',ytickformat='(A1)',yr=yr 
                            
                            FOR i=0L,Ngrains-1 DO BEGIN
                                
                                testneq = where(st.polsed.(i+1) ne 0,countneq)

                                ;stop

                                if countneq ne 0 then begin 
                                    vecfin = st.polsed.(i+1)*0.0 ;em_tot can be used here right? 

                                    ;stop

                                    vecfin[testneq] = ((st.polsed.(i+1))[testneq])/((st.sed.(i+1))[testneq]);extra_spec[testneq];(st.sed.em_tot)[testneq];(st.sed.(i+1))[testneq];*fact;(st.sed.(i+1))[testneq]

                                    polar_ippsi2iqu,st.sed.(i+1)*fact,specqgrain,specugrain,vecfin,replicate(!dustem_psi,n_elements(vecfin)) ;temporary solution
                                                                        
                                    dustem_plot_mlog,st.polsed.wav,specqgrain,ppositions=position[0],/positive_only,/overplot,noerase=1,color=use_cols[i],xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr

                                endif

                            ENDFOR
                            
                            for i=0L,n_plgns-1 do begin

                                IF isa((*!dustem_plugin).(0).spec) THEN BEGIN
                                    IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin
                                     
                                        ;dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i))[*,1],ppositions=position, /overplot, noerase=1, color=clrs_plgns[i], linestyle=2,xr=xr,/xlog
                                        dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i).spec)[*,1],ppositions=position[0],/positive_only,/overplot,noerase=1, color=clrs_plgns[i], linestyle=2 ,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr      
                                    ENDIF

                                ENDIF

                            endfor
                            
                            IF ct_spec NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).qsed).wav)[idx_spec]
                                yy=dustem_interp[idx_spec]
                                
                                dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only, /overplot, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr 
                            ENDIF
                            
                            IF ct_filt NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).qsed).wav)[idx_filt]
                                yy=dustem_interp[idx_filt]

                                dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only, /overplot, noerase=1, color='red',psym=6,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                            ENDIF

                            dustem_plot_mlog,st.polsed.wav,dustem_spec,ppositions=position[0],/positive_only,/overplot,noerase=1,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr                                    

                        
                        endif

                                
                    
                    endif
                    

                    if negative_only EQ 1 then begin
                                                         
                        testlow=where(dustem_spec LT 0., countmodellow)   
                        if testngtv ne 0 or countmodellow ne 0 then begin
                            
                            dustem_plot_mlog,vectw,-vectx,ppositions=position[0],xs=5,ys=5,/negative_only, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,/xlog,/ylog,/nodata,xtickformat='(A1)',xtit='',ytickformat='(A1)',yr=yr
                            
                            ;Plotting of the spectra of the dust species
                            FOR i=0L,Ngrains-1 DO BEGIN
                                
                                testneq = where(st.polsed.(i+1) ne 0,countneq)
                                ;stop
                                if countneq ne 0 then begin 
                                    vecfin = st.polsed.(i+1)*0.0 ;em_tot can be used here right? 

                                    ;stop

                                    vecfin[testneq] = ((st.polsed.(i+1))[testneq])/((st.sed.(i+1))[testneq]);extra_spec[testneq];(st.sed.em_tot)[testneq];(st.sed.(i+1))[testneq];*fact;(st.sed.(i+1))[testneq] 
                                    ;stop    
                                    polar_ippsi2iqu,st.sed.(i+1)*fact,specqgrain,specugrain,vecfin,replicate(!dustem_psi,n_elements(vecfin)) ;temporary solution
                                    ;stop
                                    ;dustem_plot_mlog,st.polsed.wav,specqgrain,ppositions=position,/overplot,noerase=1,color=use_cols[i],xr=xr,/xlog 
                                    dustem_plot_mlog,st.polsed.wav,specqgrain,ppositions=position[0],/negative_only,/overplot,noerase=1,color=use_cols[i],xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr

                                endif 
                            ENDFOR
                            
                            ;Plotting of the plugins
                            for i=0L,n_plgns-1 do begin
                                IF isa((*!dustem_plugin).(0).spec) THEN BEGIN
                                
                                    IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin
 
                                        ;dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i))[*,1],ppositions=position, /overplot, noerase=1, color=clrs_plgns[i], linestyle=2,xr=xr,/xlog
                                        dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i).spec)[*,1],ppositions=position[0],/negative_only,/overplot,noerase=1, color=clrs_plgns[i], linestyle=2 ,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr      

                                    ENDIF

                                ENDIF

                            endfor
                            ;PLotting of the interpolates corresponding to spectrum and filter points
                            IF ct_spec NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).qsed).wav)[idx_spec]
                                yy=dustem_interp[idx_spec]

                                dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only, /overplot, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr 
                            ENDIF

                            IF ct_filt NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).qsed).wav)[idx_filt]
                                yy=dustem_interp[idx_filt]
                                dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only, /overplot, noerase=1, color='red',psym=6,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                            ENDIF
                            ;Plotting of the total dust emission spectrum
                            dustem_plot_mlog,st.polsed.wav,dustem_spec,ppositions=position[0],/negative_only,/overplot,noerase=1,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr                                    

                        endif

                                
                    
                    endif
                                               
                ;Plotting of the froeen data in the normal plot           
                endif else begin ;The data points in the plot that remain unchanged.; DO NOT USE AN ELSE HERE. 
                 
                    xyouts,pospltxt[0],pospltxt[1],textoidl('Q_{\nu} (MJy/sr)'),color=0,/normal,charsize=1.3;,charthick=2.0  
                    ;if ct_hdnpts ne 0 then begin ;Hidden data points are present 
                        
                    ;Locating the hidden spectrum and filter data points     
                   
                    if ct_hdnpts NE 0 then begin
                        idx_filt_hdn_pstv = where(((*(*!dustem_show).qsed).filt_names)(idx_rmv_sed) NE 'SPECTRUM' and ((*(*!dustem_show).qsed).values)(idx_rmv_sed) gt 0,ct_filt_hdn_pstv)
                        idx_spec_hdn_pstv = where(((*(*!dustem_show).qsed).filt_names)(idx_rmv_sed) EQ 'SPECTRUM' and ((*(*!dustem_show).qsed).values)(idx_rmv_sed) gt 0,ct_spec_hdn_pstv)
                        idx_filt_hdn_ngtv = where(((*(*!dustem_show).qsed).filt_names)(idx_rmv_sed) NE 'SPECTRUM' and ((*(*!dustem_show).qsed).values)(idx_rmv_sed) lt 0,ct_filt_hdn_ngtv)
                        idx_spec_hdn_ngtv = where(((*(*!dustem_show).qsed).filt_names)(idx_rmv_sed) EQ 'SPECTRUM' and ((*(*!dustem_show).qsed).values)(idx_rmv_sed) lt 0,ct_spec_hdn_ngtv)
                    endif
                    
                    if positive_only EQ 1 then begin

                        if testpstv ne 0 then begin

                            plotsym, 0
                            
                            if ct_spec ne 0 then begin
                            
                                rms=2.*((*(*!dustem_data).qsed).sigma)(idx_spec)/2.

                                dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_spec),((*(*!dustem_data).qsed).values)(idx_spec),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                                dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_spec),((*(*!dustem_data).qsed).values)(idx_spec),ppositions=position[0],color='Dodger Blue',/positive_only,noerase=1,/overplot,rms=rms,xtit='',charsize=1.15,xtickformat='(A1)',xs=1,psym=16,syms=0.8,xr=xr,/xlog,/ylog,yr=yr,ytickformat='(A1)'     
                             
                            endif
                            
                            if ct_filt ne 0 then begin

                                rms=2.*((*(*!dustem_data).qsed).sigma)(idx_filt)/2.
                               
                               

                                if ct_spec ne 0 then dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),((*(*!dustem_data).qsed).values)(idx_filt),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr,/overplot,ytickformat='(A1)';,ytickformat='(A1)'

                                if ct_spec eq 0 then dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),((*(*!dustem_data).qsed).values)(idx_filt),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                                dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),((*(*!dustem_data).qsed).values)(idx_filt),ppositions=position[0],color='Dodger Blue',/positive_only,noerase=1,/overplot,rms=rms,xtit='',charsize=1.15,xtickformat='(A1)',xs=1,psym=16,syms=0.8,xr=xr,/xlog,/ylog,yr=yr,ytickformat='(A1)'

                            endif
                            
                            
                            if ct_hdnpts NE 0 then begin
                            
                                if ct_spec_hdn_pstv ne 0 then begin
                                    xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_spec_hdn_pstv)
                                    yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_spec_hdn_pstv)
                                    rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_spec_hdn_pstv)/2.
                                    
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',/overplot,xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'  
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,noerase=1,color='Black',/overplot,rms=rms,yr=yr,xtickformat='(A1)',xr=xr,xs=1,/xlog,/ylog,ytickformat='(A1)'  

                                endif 

                                if ct_filt_hdn_pstv ne 0 then begin

                                    xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_filt_hdn_pstv)
                                    yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_filt_hdn_pstv)
                                    rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_filt_hdn_pstv)/2.

                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,charsize=1.15,/overplot,xtickformat='(A1)',xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'     
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,color='Black',/overplot,rms=rms,xr=xr,yr=yr,xtickformat='(A1)',/xlog,/ylog,ytickformat='(A1)'  

                                endif

                            endif
                            
                            
                        endif else begin
                            
                            
                        
                            if ct_spec ne 0 then dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_spec),-((*(*!dustem_data).qsed).values)(idx_spec),ppositions=position[0],charsize=1.15,/nodata,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'

                            if ct_filt ne 0 and ct_spec eq 0 then  dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),-((*(*!dustem_data).qsed).values)(idx_filt),/nodata,ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                               
                            
                            if ct_hdnpts NE 0 then begin
                            
                                if ct_spec_hdn_pstv ne 0 then begin
                                    xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_spec_hdn_pstv)
                                    yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_spec_hdn_pstv)
                                    rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_spec_hdn_pstv)/2.

                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',/overplot,xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'  
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,noerase=1,color='Black',/overplot,rms=rms,yr=yr,xtickformat='(A1)',xr=xr,xs=1,/xlog,/ylog,ytickformat='(A1)'  ;,psym=8,syms=0.8

                                endif 

                                if ct_filt_hdn_pstv ne 0 then begin

                                    xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_filt_hdn_pstv)
                                    yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_filt_hdn_pstv)
                                    rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_filt_hdn_pstv)/2.

                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,charsize=1.15,/overplot,xtickformat='(A1)',xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'     
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,color='Black',/overplot,rms=rms,xr=xr,yr=yr,xtickformat='(A1)',/xlog,/ylog,ytickformat='(A1)'  ;,psym=8,syms=0.8
                                

                                endif
                                

                            endif
                            
                        endelse                           
                    
                    endif 
                    
                    
                    if negative_only EQ 1 then begin

                        if testngtv ne 0 then begin
                             
                             ;plotsym, 0

                             if ct_spec ne 0 then begin
                             
                                 rms=2.*((*(*!dustem_data).qsed).sigma)(idx_spec)/2.

                                 dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_spec),((*(*!dustem_data).qsed).values)(idx_spec),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/negative_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                                 dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_spec),((*(*!dustem_data).qsed).values)(idx_spec),ppositions=position[0],color='Dodger Blue',/negative_only,noerase=1,/overplot,rms=rms,xtit='',charsize=1.15,xtickformat='(A1)',xs=1,xr=xr,/xlog,/ylog,yr=yr,ytickformat='(A1)';,psym=16,syms=0.8     
                              
                             endif
                             
                             if ct_filt ne 0 then begin

                                 rms=2.*((*(*!dustem_data).qsed).sigma)(idx_filt)/2.
                                
                                 if ct_spec ne 0 then dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),((*(*!dustem_data).qsed).values)(idx_filt),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/negative_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr,ytickformat='(A1)'
                                 if ct_spec eq 0 then dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),((*(*!dustem_data).qsed).values)(idx_filt),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/negative_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr

                                 dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),((*(*!dustem_data).qsed).values)(idx_filt),ppositions=position[0],color='Dodger Blue',/negative_only,noerase=1,/overplot,rms=rms,xtit='',charsize=1.15,xtickformat='(A1)',xs=1,xr=xr,/xlog,/ylog,yr=yr,ytickformat='(A1)'

                             endif 
                             
                             if ct_hdnpts NE 0 then begin
                             
                                 if ct_spec_hdn_ngtv ne 0 then begin
                                     xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_spec_hdn_ngtv)
                                     yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_spec_hdn_ngtv)
                                     rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_spec_hdn_ngtv)/2.

                                     dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,xs=1,noerase=1,charsize=1.15,/overplot,xtickformat='(A1)',xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'
                                     dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,noerase=1,color='Black',/overplot,rms=rms,yr=yr,xtickformat='(A1)',xr=xr,xs=1,/xlog,/ylog,ytickformat='(A1)';,psym=8,syms=0.8
                                 

                                 endif 
                                 

                                 if ct_filt_hdn_ngtv ne 0 then begin

                                     xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_filt_hdn_ngtv)
                                     yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_filt_hdn_ngtv)
                                     rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_filt_hdn_ngtv)/2.

                                     dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,xs=1,noerase=1,charsize=1.15,/overplot,xtickformat='(A1)',xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr ,ytickformat='(A1)'  
                                     dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,xs=1,noerase=1,color='Black',/overplot,rms=rms,xr=xr,yr=yr,xtickformat='(A1)',/xlog,/ylog,ytickformat='(A1)';,psym=8,syms=0.8
                                 

                                 endif

                            
                             endif

                        
                        endif else begin

                            
                            if ct_spec ne 0 then dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_spec),-((*(*!dustem_data).qsed).values)(idx_spec),ppositions=position[0],charsize=1.15,/nodata,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/negative_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'

                            
                            if ct_filt ne 0 and ct_spec eq 0 then  dustem_plot_mlog,((*(*!dustem_data).qsed).wav)(idx_filt),-((*(*!dustem_data).qsed).values)(idx_filt),/nodata,ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/negative_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                            
                            if ct_hdnpts NE 0 then begin
                            
                                if ct_spec_hdn_ngtv ne 0 then begin
                                    xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_spec_hdn_ngtv)
                                    yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_spec_hdn_ngtv)
                                    rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_spec_hdn_ngtv)/2.

                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,xs=1,noerase=1,charsize=1.15,/overplot,xtickformat='(A1)',xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,noerase=1,color='Black',/overplot,rms=rms,yr=yr,xtickformat='(A1)',xr=xr,xs=1,/xlog,/ylog,ytickformat='(A1)';,psym=8,syms=0.8

                                endif 

                                if ct_filt_hdn_ngtv ne 0 then begin

                                    xx = (((*(*!dustem_show).qsed).wav)[idx_rmv_sed])(idx_filt_hdn_ngtv)
                                    yy = (((*(*!dustem_show).qsed).values)[idx_rmv_sed])(idx_filt_hdn_ngtv)
                                    rms=2.*(((*(*!dustem_show).qsed).sigma)[idx_rmv_sed])(idx_filt_hdn_ngtv)/2.

                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,xs=1,noerase=1,charsize=1.15,/overplot,xtickformat='(A1)',xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr ,ytickformat='(A1)'  
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only,xs=1,noerase=1,color='Black',/overplot,rms=rms,xr=xr,yr=yr,xtickformat='(A1)',/xlog,/ylog,ytickformat='(A1)';,psym=8,syms=0.8
                                
                                endif
                                
                                endif
                              
                        endelse
                        ;stop
                    endif

                
                endelse 

            END

            ;DONE BUT NOT TESTED...
            'USED': begin

                ;SETTING THE PLOT RANGE
                xr = !dustem_plot_range.used.xr
                yr = !dustem_plot_range.used.yr

                vectw=DINDGEN(1001)*(alog10(1E7) - alog10(1E5))/(1000 - 1L) + alog10(1E5)
                vectw=10^vectw[1:*]
                vectw=[wavs,vectw]
                vectx=vectw*0+1

                ;SIGN-RELATED PARAMETERS/LOOPS HERE?
                ;negative & positive values regardless of data type (SPECTRUM or FILTER data points)
                varvar=where((*(*!dustem_data).used).values LT 0, testngtv)
                varvar=where((*(*!dustem_data).used).values GT 0, testpstv)
                ;stop
                idx_filt=where((*(*!dustem_data).used).filt_names NE 'SPECTRUM', ct_filt)
                idx_spec=where((*(*!dustem_data).used).filt_names EQ 'SPECTRUM' , ct_spec)
                
                ;Locating all the hidden data points (spectrum+filter)
                match2,((*(*!dustem_data).used).wav),((*(*!dustem_show).used).wav),show_sedpts,fit_sedpts ;only show_sedpts is needed
                idx_rmv_sed=where(fit_sedpts eq -1, ct_hdnpts) ; indices of the points to hide
                

                
                If n_elements(position) GT 1 THEN BEGIN
                    ;Refreshing of the data in the normalized plot
                    if keyword_set(refresh) then begin ;The data points in the plot that are being refreshed 

                        ;Making sure we're placed in the normalized plot
                        cgplot,vectw,vectx,/nodata,/xlog,xs=5,ys=5,pos=position[1],noerase=1,charsize=1.15,xtickformat='(A1)',ytickformat='(A1)',color='Powder Blue',xr=xr,xtit='',yr=[0.0,2.0],psym=8,syms=0.8

                        IF ct_spec NE 0 THEN BEGIN
                            xx=((*(*!dustem_data).used).wav)[idx_spec]
                            yy=dustem_interp[idx_spec]
                            rms=2.*((*(*!dustem_data).used).sigma)(idx_spec)/2.
                            indzero = where(yy NE 0, ct_zero)
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,xx[indzero],(((*(*!dustem_data).used).values)(idx_spec))[indzero]/yy[indzero],pos=position[1],psym=16,color='Powder Blue',syms=0.8,noerase=1 
                                cgerrplot,(((*(*!dustem_data).used).wav)(idx_spec))[indzero],((((*(*!dustem_data).used).values)[idx_spec])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).used).values)[idx_spec])[indzero]+rms[indzero])/yy[indzero],color='Powder Blue'
                            ENDIF

                        ENDIF

                        
                        IF ct_filt NE 0 THEN BEGIN
                            
                            xx=((*(*!dustem_data).used).wav)[idx_filt]
                            yy=dustem_interp[idx_filt]
                            rms=2.*((*(*!dustem_data).used).sigma)(idx_filt)/2. 
                            indzero = where(yy NE 0, ct_zero)
                            
                            IF ct_zero NE 0 THEN BEGIN
                                cgoplot,xx[indzero],(((*(*!dustem_data).used).values)(idx_filt))[indzero]/yy[indzero],pos=position[1],psym=16,color='Dodger Blue',syms=0.8,noerase=1 
                                cgerrplot,(((*(*!dustem_data).used).wav)(idx_filt))[indzero],((((*(*!dustem_data).used).values)[idx_filt])[indzero]-rms[indzero])/yy[indzero],((((*(*!dustem_data).used).values)[idx_filt])[indzero]+rms[indzero])/yy[indzero],color='Dodger Blue' 
                            ENDIF
                        ENDIF
      
                    ;plotting of the frozen data in the normalized plot
                    endif else begin 
                        
                        xtit=textoidl('\lambda (\mum)')
                        
                        cgplot,vectw,vectx,/xlog,/ys,xs=1,pos=position[1],noerase=1,color='Black',xr=xr,xtit=xtit,yr=[0.0,2.0],yticks=2,ymino=2,xticklen=0.1,ytickformat='(F6.2)',charsize=1.0
                        xyouts,pospltxt_n[0],pospltxt_n[1],textoidl('norm'),color=0,/normal,charsize=1.1

                    endelse
                ENDIF

                
                ;refreshig of the data in the normal plot.
                          
                if keyword_set(refresh) then begin 
                    
                    if positive_only EQ 1 then begin
                    
                        testsup=where(dustem_spec GT 0., countmodelsup)      
                        if testpstv ne 0 or countmodelsup ne 0 then begin
                            
                            ;Making sure we're refreshing data in the positive_only plot
                            dustem_plot_mlog,vectw,vectx,ppositions=position[0],/positive_only, noerase=1, color='Indian Red',xs=5,ys=5,psym=7,syms=2,xr=xr,/xlog,/ylog,/nodata,xtickformat='(A1)',xtit='',ytickformat='(A1)',yr=yr

                            FOR i=0L,Ngrains-1 DO BEGIN
                                
                                testneq = where(st.polsed.(i+1) ne 0,countneq)
                                
                                if countneq ne 0 then begin 
                                    vecfin = st.polsed.(i+1)*0.0 ;em_tot can be used here right? 

                                    vecfin[testneq] = ((st.polsed.(i+1))[testneq])/((st.sed.(i+1))[testneq]);extra_spec[testneq];(st.sed.em_tot)[testneq];(st.sed.(i+1))[testneq];*fact;(st.sed.(i+1))[testneq]

                                    polar_ippsi2iqu,st.sed.(i+1)*fact,specqgrain,specugrain,vecfin,replicate(!dustem_psi,n_elements(vecfin)) ;temporary solution
                                    ;dustem_plot_mlog,st.polsed.wav,specqgrain,ppositions=position,/overplot,noerase=1,color=use_cols[i],xr=xr,/xlog 
                                    dustem_plot_mlog,st.polsed.wav,specugrain,ppositions=position[0],/positive_only,/overplot,noerase=1,color=use_cols[i],xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                                endif 

                                ;stop

                            ENDFOR
                            ;stop
                            for i=0L,n_plgns-1 do begin
                                
                                IF isa((*!dustem_plugin).(0).spec) THEN BEGIN
                                
                                    IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin

                                        
                                        dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i).spec)[*,2],ppositions=position[0],/positive_only,/overplot,noerase=1, color=clrs_plgns[i], linestyle=2 ,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr      

                                    ENDIF
                                    

                                ENDIF
                                

                            endfor

                            IF ct_spec NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).used).wav)[idx_spec]
                                yy=dustem_interp[idx_spec]
                                ;dustem_plot_mlog,xx,yy,ppositions=position,/overplot, noerase=1, color='red',psym=7,syms=2,xr=xr,/xlog
                                dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only, /overplot, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr 
                            ENDIF
                            
                            IF ct_filt NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).used).wav)[idx_filt]
                                yy=dustem_interp[idx_filt]
                                ;dustem_plot_mlog,xx,yy,ppositions=position, /overplot, noerase=1, color='red',psym=6,syms=2,xr=xr,/xlog
                                dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only, /overplot, noerase=1, color='red',psym=6,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                            ENDIF
                            
                            dustem_plot_mlog,st.polsed.wav,dustem_spec,ppositions=position[0],/positive_only,/overplot,noerase=1,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr                                    

                        
                        endif

                                
                    endif
                    
                    
                    if negative_only EQ 1 then begin
                    
                        testlow=where(dustem_spec LT 0., countmodelow)  
                        if testngtv ne 0 or countmodelow ne 0 then begin
                            
                            ;Making sure we're refreshing data in the positive_only plot
                            dustem_plot_mlog,vectw,-vectx,ppositions=position[0],/negative_only, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,xs=5,ys=5,/xlog,/ylog,/nodata,xtickformat='(A1)',xtit='',ytickformat='(A1)',yr=yr
                                
                            ;Plotting of the spectra of the dust species
                            FOR i=0L,Ngrains-1 DO BEGIN
                                testneq = where(st.polsed.(i+1) ne 0,countneq)
                                if countneq ne 0 then begin
                                    vecfin = st.polsed.(i+1)*0.0 ;em_tot can be used here right? 

                                    vecfin[testneq] = ((st.polsed.(i+1))[testneq])/((st.sed.(i+1))[testneq]);extra_spec[testneq];(st.sed.em_tot)[testneq];(st.sed.(i+1))[testneq];*fact;(st.sed.(i+1))[testneq]
                                    
                                    polar_ippsi2iqu,st.sed.(i+1)*fact,specqgrain,specugrain,vecfin,replicate(!dustem_psi,n_elements(vecfin)) ;temporary solution
                                     
                                    dustem_plot_mlog,st.polsed.wav,specugrain,ppositions=position[0],/negative_only,/overplot,noerase=1,color=use_cols[i],xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                                endif    
                            ENDFOR
                            ;Plotting of the plugins
                            FOR i=0L,n_plgns-1 do begin
                                IF isa((*!dustem_plugin).(0).spec) THEN BEGIN
                                
                                    IF total(strsplit((*(*!dustem_plugin).(i).scope),'+',/extract) EQ 'ADD_POLSED') THEN begin
                                        ;dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i))[*,1],ppositions=position, /overplot, noerase=1, color=clrs_plgns[i], linestyle=2,xr=xr,/xlog
                                        dustem_plot_mlog,st.polsed.wav,(*(*!dustem_plugin).(i).spec)[*,2],ppositions=position[0],/negative_only,/overplot,noerase=1, color=clrs_plgns[i], linestyle=2 ,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr      

                                    ENDIF

                                ENDIF

                            ENDFOR
                            ;PLotting of the interpolates corresponding to spectrum and filter points
                            IF ct_spec NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).used).wav)[idx_spec]
                                yy=dustem_interp[idx_spec]
                                ;dustem_plot_mlog,xx,yy,ppositions=position,/overplot, noerase=1, color='red',psym=7,syms=2,xr=xr,/xlog
                                dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only, /overplot, noerase=1, color='Indian Red',psym=7,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr 
                            ENDIF

                            IF ct_filt NE 0 THEN BEGIN
                                xx=((*(*!dustem_data).used).wav)[idx_filt]
                                yy=dustem_interp[idx_filt]
                                ;dustem_plot_mlog,xx,yy,ppositions=position, /overplot, noerase=1, color='red',psym=6,syms=2,xr=xr,/xlog
                                dustem_plot_mlog,xx,yy,ppositions=position[0],/negative_only, /overplot, noerase=1, color='red',psym=6,syms=2,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr
                            ENDIF
                            
                            ;Plotting of the total dust emission spectrum
                            dustem_plot_mlog,st.polsed.wav,dustem_spec,ppositions=position[0],/negative_only,/overplot,noerase=1,xr=xr,/xlog,/ylog,ytickformat='(A1)',yr=yr                                    

                        
                        endif

                                
                    
                    endif
                                               
                ;Plotting of frozen data in the normal plot    
                       
                endif else begin 
                    
                    xyouts,pospltxt[0],pospltxt[1],textoidl('U_{\nu} (MJy/sr)'),color=0,/normal,charsize=1.3;,charthick=2.0  
                    
                    ;Locating the hidden spectrum and filter data points     
                    ;SADLY I STILL DON'T HAVE A SOLUTION FOR THE PLOTTING OF NULL VALUES.                                   
                    
                    if ct_hdnpts NE 0 then begin
                        idx_filt_hdn_pstv = where(((*(*!dustem_show).used).filt_names)(idx_rmv_sed) NE 'SPECTRUM' and ((*(*!dustem_show).used).values)(idx_rmv_sed) gt 0,ct_filt_hdn_pstv)
                        idx_spec_hdn_pstv = where(((*(*!dustem_show).used).filt_names)(idx_rmv_sed) EQ 'SPECTRUM' and ((*(*!dustem_show).used).values)(idx_rmv_sed) gt 0,ct_spec_hdn_pstv)
                        idx_filt_hdn_ngtv = where(((*(*!dustem_show).used).filt_names)(idx_rmv_sed) NE 'SPECTRUM' and ((*(*!dustem_show).used).values)(idx_rmv_sed) lt 0,ct_filt_hdn_ngtv)
                        idx_spec_hdn_ngtv = where(((*(*!dustem_show).used).filt_names)(idx_rmv_sed) EQ 'SPECTRUM' and ((*(*!dustem_show).used).values)(idx_rmv_sed) lt 0,ct_spec_hdn_ngtv)
                    endif
                    ;stop
                    
                    if positive_only EQ 1 then begin

                        ;stop

                        if testpstv ne 0 then begin

                        ;stop

                            plotsym, 0
                            
                             
                            if ct_spec ne 0 then begin
                            
                                rms=2.*((*(*!dustem_data).used).sigma)(idx_spec)/2.
                                ;dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_spec),-((*(*!dustem_data).used).values)(idx_spec),ppositions=position,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,/nodata,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                                ;if ct_spec_hdn_pstv ne 0 then dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_spec),((*(*!dustem_data).used).values)(idx_spec),ppositions=position,charsize=1.15,/overplot,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr else begin
                                dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_spec),((*(*!dustem_data).used).values)(idx_spec),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr
                                ;endelse;,ytickformat='(A1)'
                                dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_spec),((*(*!dustem_data).used).values)(idx_spec),ppositions=position[0],color='Dodger Blue',/positive_only,noerase=1,/overplot,rms=rms,xtit='',xtickformat='(A1)',xs=1,xr=xr,/xlog,/ylog,yr=yr,ytickformat='(A1)'  ;,charsize=1.15,psym=16,syms=0.8
                             
                            endif
                            
                            if ct_filt ne 0 then begin

                                rms=2.*((*(*!dustem_data).used).sigma)(idx_filt)/2.
                               ; dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_filt),-1.*((*(*!dustem_data).used).values)(idx_filt),ppositions=position,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,/nodata,noerase=1,/negative_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr;,ytickformat='(A1)'
                                ;if ct_filt_hdn_pstv ne 0 then dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_filt),((*(*!dustem_data).used).values)(idx_filt),/overplot,ppositions=position,charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr else begin
                                if ct_spec ne 0 then dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_filt),((*(*!dustem_data).used).values)(idx_filt),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr,ytickformat='(A1)'
                                if ct_spec eq 0 then dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_filt),((*(*!dustem_data).used).values)(idx_filt),ppositions=position[0],charsize=1.15,color='Dodger Blue',psym=16,syms=0.8,xs=1,xr=xr,noerase=1,/positive_only,xtickformat='(A1)',xtit='',/xlog,/ylog,yr=yr
                                ;endelse;,ytickformat='(A1)'
                                dustem_plot_mlog,((*(*!dustem_data).used).wav)(idx_filt),((*(*!dustem_data).used).values)(idx_filt),ppositions=position[0],color='Dodger Blue',/positive_only,noerase=1,/overplot,rms=rms,xtit='',xtickformat='(A1)',xs=1,xr=xr,/xlog,/ylog,yr=yr,ytickformat='(A1)';,charsize=1.15,psym=16,syms=0.8

                            endif
                            
                            if ct_hdnpts NE 0 then begin
                            
                                if ct_spec_hdn_pstv ne 0 then begin
                                    ;stop
                                    xx = (((*(*!dustem_show).used).wav)[idx_rmv_sed])(idx_spec_hdn_pstv)
                                    yy = (((*(*!dustem_show).used).values)[idx_rmv_sed])(idx_spec_hdn_pstv)
                                    rms=2.*(((*(*!dustem_show).used).sigma)[idx_rmv_sed])(idx_spec_hdn_pstv)/2.
                                    
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,xs=1,noerase=1,charsize=1.15,xtickformat='(A1)',/overplot,xr=xr,color='Black',psym=16,syms=0.8,/xlog,/ylog,yr=yr,ytickformat='(A1)'
                                    dustem_plot_mlog,xx,yy,ppositions=position[0],/positive_only,noerase=1,color='Black',/overplot,rms=rms,yr=yr,xtickformat='(A1)',xr=xr,xs=1,/xlog,/ylog,ytickformat='(A1)';,psym=8,syms=0.8