LSSTApplications  17.0+50,17.0+84,17.0+9,18.0.0+14,18.0.0+2,18.0.0+30,18.0.0+4,18.0.0+9,18.0.0-2-ge43143a+4,18.1.0-1-g0001055,18.1.0-1-g0896a44+6,18.1.0-1-g1349e88+4,18.1.0-1-g2505f39+3,18.1.0-1-g380d4d4+4,18.1.0-1-g5e4b7ea,18.1.0-1-g85f8cd4+3,18.1.0-1-g9a6769a+2,18.1.0-1-ga1a4c1a+2,18.1.0-1-gc037db8,18.1.0-1-gd55f500+1,18.1.0-1-ge10677a+3,18.1.0-10-g73b8679e+7,18.1.0-11-g311e899+3,18.1.0-12-g0d73a3591,18.1.0-12-gc95f69a+3,18.1.0-2-g000ad9a+3,18.1.0-2-g31c43f9+3,18.1.0-2-g9c63283+4,18.1.0-2-gdf0b915+4,18.1.0-2-gf03bb23,18.1.0-3-g2e29e3d+6,18.1.0-3-g52aa583+2,18.1.0-3-g9cb968e+3,18.1.0-4-gd2e8982+6,18.1.0-5-g510c42a+3,18.1.0-5-gaeab27e+4,18.1.0-6-gdda7f3e+6,18.1.0-7-g89824ecc+4,w.2019.32
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.