def show_image(self, colorbar=False):
# start xpans if needed
ds9.ds9_xpans()
# start ds9 if need, or connect to existing
display = ds9.ds9(target='validate')
if self.frame_number is None:
# display.set('frame delete all')
display.set('frame new')
display.set('scale zscale')
display.set('cmap invert yes')
f = StringIO()
self.hdulist.writeto(f)
f.flush()
f.seek(0)
hdulist = fits.open(f)
for hdu in hdulist:
del(hdu.header['PV*'])
display.set_pyfits(hdulist)
f.close()
del(hdulist)
self.frame_number = display.get('frame frameno')
display.set('frame center {}'.format(self.frame_number))
display.set('zoom to fit')
display.set('wcs align yes')
display.set('frame frameno {}'.format(self.frame_number))
self._interaction_context = InteractionContext(self)
self.number_of_images_displayed += 1
def setUp(self):
mainhdu = Mock()
mainhdu.data.shape = (100, 100)
self.hdulist = [mainhdu]
self.figure = Mock()
with patch.object(ImageSinglet, "_create_axes"):
self.image = ImageSinglet(self.hdulist, self.figure, [0, 0, 1, 1])
self.image.axes = Mock()
self.interaction_context = InteractionContext(self.image)
