def im2uv(self):
if self.sky_img is None:
raise _InputError('No imagae file', self.im2uv.__name__,
self.__name__)
else:
print '# im2uv: ' + self.name
maps.im2uv(self.sky_img, verbose=False)
self.vis_in = self.sky_img.rsplit('/', 1)[-1][0:-5] + '.dat'
self.update_spec()
self.append_log('# $> im2uv({0})\n'
'# >>> sky uvgrid: {1}\n'
.format(self.sky_img, self.vis_in))