LSSTApplications  18.0.0+46,18.0.0+93,19.0.0,19.0.0+1,19.0.0+2,19.0.0+3,19.0.0+4,19.0.0-1-g20d9b18+2,19.0.0-1-g3dc8cbe+2,19.0.0-1-g425ff20,19.0.0-1-g5549ca4,19.0.0-1-g580fafe+2,19.0.0-1-g5db401e+3,19.0.0-1-g6fe20d0+1,19.0.0-1-g7011481+2,19.0.0-1-g8c57eb9+2,19.0.0-1-g9828021+2,19.0.0-1-gb5175dc+2,19.0.0-1-gd7f3e1b+2,19.0.0-1-gdc0e4a7+2,19.0.0-1-ge272bc4+2,19.0.0-2-g0d9f9cd+2,19.0.0-2-g1c703f9ef+1,19.0.0-2-g3d9e4fb2+2,19.0.0-2-gd955cfd+2,19.0.0-3-g2d13df8,19.0.0-3-g63079e6+2,19.0.0-7-g8a434f2+1,19.0.0-7-gf796fef9+3,w.2019.49
LSSTDataManagementBasePackage
Classes | Functions | Variables
lsst.skymap.healpixSkyMap Namespace Reference

Classes

class  DummyHealpy
 
class  HealpixSkyMap
 
class  HealpixSkyMapConfig
 
class  HealpixTractInfo
 

Functions

def angToCoord (thetaphi)
 
def coordToAng (coord)
 

Variables

 healpy
 

Function Documentation

◆ angToCoord()

def lsst.skymap.healpixSkyMap.angToCoord (   thetaphi)
Convert healpy's ang to an lsst.geom.SpherePoint

The ang is provided as a single object, thetaphi, so the output
of healpy functions can be directed to this function without
additional translation.

Definition at line 48 of file healpixSkyMap.py.

48 def angToCoord(thetaphi):
49  """Convert healpy's ang to an lsst.geom.SpherePoint
50 
51  The ang is provided as a single object, thetaphi, so the output
52  of healpy functions can be directed to this function without
53  additional translation.
54  """
55  return geom.SpherePoint(float(thetaphi[1]), float(thetaphi[0] - 0.5*numpy.pi), geom.radians)
56 
57 
Point in an unspecified spherical coordinate system.
Definition: SpherePoint.h:57

◆ coordToAng()

def lsst.skymap.healpixSkyMap.coordToAng (   coord)
Convert an lsst.geom.SpherePoint to a healpy ang (theta, phi)

The Healpix convention is that 0 <= theta <= pi, 0 <= phi < 2pi.

Definition at line 58 of file healpixSkyMap.py.

58 def coordToAng(coord):
59  """Convert an lsst.geom.SpherePoint to a healpy ang (theta, phi)
60 
61  The Healpix convention is that 0 <= theta <= pi, 0 <= phi < 2pi.
62  """
63  return (coord.getLatitude().asRadians() + 0.5*numpy.pi, coord.getLongitude().asRadians())
64 
65 

Variable Documentation

◆ healpy

lsst.skymap.healpixSkyMap.healpy

Definition at line 40 of file healpixSkyMap.py.