healpy.projector.GnomonicProj

class healpy.projector.GnomonicProj(rot=None, coord=None, xsize=None, ysize=None, reso=None, **kwds)

This class provides class methods for Gnomonic projection.

Attributes

arrayinfo

Dictionary with information on the projection array

Methods

ang2xy(theta[, phi, lonlat, direct])	From angular direction to position in the projection plane (Gnomonic).
get_center([lonlat])	Get the center of the projection.
get_extent()
get_fov()
get_proj_plane_info()
ij2xy([i, j])	From image array indices to position in projection plane (Gnomonic).
mkcoord(coord)
projmap(map, vec2pix_func[, rot, coord])	Create an array containing the projection of the map.
set_flip(flipconv)	flipconv is either ‘astro’ or ‘geo’. None will be default.
set_proj_plane_info([xsize, ysize, reso])
vec2xy(vx[, vy, vz, direct])	From angular direction to position in the projection plane (Gnomonic).
xy2ang(x[, y, lonlat, direct])	From position in the projection plane to angular direction (Gnomonic).
xy2ij(x[, y])	From position in the projection plane to image array index (Gnomonic).
xy2vec(x[, y, direct])	From position in the projection plane to unit vector direction (Gnomonic).