maps.py
2.19 KB
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from numpy import shape, histogram2d, arange, newaxis, array, nditer, zeros, histogram
from numpy import sqrt, pi, exp, log, log10, sin, cos, where
from matplotlib.pyplot import figure, matshow, savefig, show
from matplotlib.colors import LogNorm
#from scipy.signal import convolve2d
from read import ReadRadial, ReadAngleVsEnergy
from constants import degre
def computeMap(theta,phi,weight,energy,saveId,nbBins=50,borne=[180,180]):
'''
Plot 2D histogram of arrival direction of the photons with energy upper than Elim
Input: list of directories
Input (optional): lower energy limit (in GeV (default = 100MeV)
Input (optional): nature of the source (default isotrop)
Input (optional): limits on theta, phi
Output: 2D histogram of theta cos(phi), theta sin(phi)
'''
fig = figure(figsize=(12,9))
ax = fig.add_subplot(111)
step = 2*array(borne,dtype=float)/nbBins
philim=float(borne[0])
thetalim=float(borne[1])
bining = array([int(2*philim/step[0])+1,int(2*thetalim/step[1])+1])
limits = [[-thetalim,thetalim],[-philim,philim]]
#===============================================================================================#
# IMAGE
#===============================================================================================#
#H,xedges,yedges = histogram2d(theta*cos(phi),theta*sin(phi),bining,weights=weight,range=limits)
#conv=convolve2d(H,source[0],boundary="wrap",mode="same")
H,xedges,yedges,im = ax.hist2d(theta*cos(phi),theta*sin(phi),bining,weights=weight,
norm=LogNorm(),range=limits)
cbar=fig.colorbar(im, ax=ax)
cbar.ax.set_ylabel("counts")
ax.set_xlim((-borne[0],borne[0]))
ax.set_ylim((-borne[1],borne[1]))
ax.set_xlabel("$\\theta$ $\\cos(\\phi)$ [deg]")
ax.set_ylabel("$\\theta$ $\\sin(\\phi)$ [deg]")
ax.grid(b=True,which='major')
ax.set_title(saveId+" - isotrop")
savefig(saveId+"/map_isotrop.png")
#def isotrop():
# return array([[1]]), "isotropic"
#
#def Gaussian2D(center=[0,0],fwhm=0.01):
# x = arange(-thetalim,thetalim+step,step)
# y = arange(-philim,philim+step,step)
# y = y[:,newaxis]
# return exp(-4*log(2) * ((x-center[0])**2 + (y+center[1])**2) / fwhm**2), "jet_"+str(fwhm)