Add method cards.

Alain Klotz
1 parent ecf246ab
Showing 1 changed file with 20 additions and 0 deletions Show diff stats
src/guitastro/ima.py
@@ -255,6 +255,9 @@ class Ima(ImaException, FileNames):
     def __repr__(self):
         return str(self)
  
+    def __array__(self):
+        return self._array
+
     def _ima2astrotable_metadata(self):
         for key in self.getkwds():
             val = self.getkwd(key)
@@ -573,6 +576,23 @@ class Ima(ImaException, FileNames):
         cards = self._hdu.header.cards
         return cards
  
+    def cards(self):
+        """Get all the FITS header cards as a list of tuple.
+
+        This method is used by libtt because the type Cards of astropy is bugged for iterator.
+        ::
+
+            ima1 = Ima()
+            cards = ima1.cards()
+
+        """
+        self._verify_buffer()
+        cards = self._hdu.header.cards
+        lcards = []
+        for card in cards:
+            lcards.append(tuple(card))
+        return lcards
+
     # =============================================
     # Input/output of a buffer with disk
     # =============================================