healpy.projector.GnomonicProj.ij2xy

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.