Sky2Pix_Parabolic¶
-
class
astropy.modeling.projections.
Sky2Pix_Parabolic
[source] [edit on github]¶ Bases:
astropy.modeling.projections.Sky2PixProjection
,astropy.modeling.projections.PseudoCylindrical
Parabolic projection - sky to pixel.
Corresponds to the
PAR
projection in FITS WCS.x &= \phi \left(2\cos\frac{2\theta}{3} - 1\right) \\ y &= 180^\circ \sin \frac{\theta}{3}
Methods Summary
evaluate
(phi, theta)Methods Documentation
-
classmethod
evaluate
(phi, theta)[source] [edit on github]¶
-
classmethod