Sky2Pix_Parabolic¶
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class
astropy.modeling.projections.Sky2Pix_Parabolic(*args, meta=None, name=None, **kwargs)[source] [edit on github]¶ Bases:
astropy.modeling.projections.Sky2PixProjection,astropy.modeling.projections.PseudoCylindricalParabolic projection - sky to pixel.
Corresponds to the
PARprojection in FITS WCS.\[\begin{split}x &= \phi \left(2\cos\frac{2\theta}{3} - 1\right) \\ y &= 180^\circ \sin \frac{\theta}{3}\end{split}\]Methods Summary
evaluate(phi, theta)Evaluate the model on some input variables. Methods Documentation
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classmethod
evaluate(phi, theta)[source] [edit on github]¶ Evaluate the model on some input variables.
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classmethod