def vec2pix(nside,x,y,z,nest=False):
"""vec2pix : nside,x,y,z,nest=False -> ipix (default:RING)
"""
if nest:
return pixlib._vec2pix_nest(nside,x,y,z)
else:
return pixlib._vec2pix_ring(nside,x,y,z)
def vec2pix(nside, x, y, z, nest=False):
"""vec2pix : nside,x,y,z,nest=False -> ipix (default:RING)
"""
if nest:
return pixlib._vec2pix_nest(nside, x, y, z)
else:
return pixlib._vec2pix_ring(nside, x, y, z)
def vec2pix(nside, x, y, z, nest=False):
"""vec2pix : nside,x,y,z,nest=False -> ipix (default:RING)
Parameters
----------
nside : int or array-like
The healpix nside parameter, must be a power of 2
x,y,z : floats or array-like
vector coordinates defining point on the sphere
nest : bool, optional
if True, assume NESTED pixel ordering, otherwise, RING pixel ordering
Returns
-------
ipix : int, scalar or array-like
The healpix pixel number corresponding to input vector. Scalar if all input
are scalar, array otherwise. Usual numpy broadcasting rules apply.
See Also
--------
ang2pix, pix2ang, pix2vec
Examples
--------
>>> import healpy as hp
>>> hp.vec2pix(16, 1, 0, 0)
1504
>>> hp.vec2pix(16, [1, 0], [0, 1], [0, 0])
array([1504, 1520])
>>> hp.vec2pix([1, 2, 4, 8], 1, 0, 0)
array([ 4, 20, 88, 368])
"""
if nest:
return pixlib._vec2pix_nest(nside, x, y, z)
else:
return pixlib._vec2pix_ring(nside, x, y, z)
def vec2pix(nside,x,y,z,nest=False):
"""vec2pix : nside,x,y,z,nest=False -> ipix (default:RING)
Parameters
----------
nside : int or array-like
The healpix nside parameter, must be a power of 2
x,y,z : floats or array-like
vector coordinates defining point on the sphere
nest : bool, optional
if True, assume NESTED pixel ordering, otherwise, RING pixel ordering
Returns
-------
ipix : int, scalar or array-like
The healpix pixel number corresponding to input vector. Scalar if all input
are scalar, array otherwise. Usual numpy broadcasting rules apply.
See Also
--------
ang2pix, pix2ang, pix2vec
Examples
--------
>>> import healpy as hpy
>>> hpy.vec2pix(16, 1, 0, 0)
1504
>>> hpy.vec2pix(16, [1, 0], [0, 1], [0, 0])
array([1504, 1520])
>>> hpy.vec2pix([1, 2, 4, 8], 1, 0, 0)
array([ 4, 20, 88, 368])
"""
if nest:
return pixlib._vec2pix_nest(nside,x,y,z)
else:
return pixlib._vec2pix_ring(nside,x,y,z)