healpy.projector.GnomonicProj.ij2xy¶
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GnomonicProj.
ij2xy
(self, i=None, j=None)¶ From image array indices to position in projection plane (Gnomonic).
- Input:
if i and j are None, generate arrays of i and j as input
i : if j is None, i[0], j[1] define array indices in Gnomonic image.
j : if defined, i,j define array indices in image.
projinfo : additional projection information.
- Return:
x,y : position in projection plane.