Inheritance diagram for lsst.meas.extensions.piff.wcs_wrapper.CelestialWcsWrapper:
Public Member Functions | |
| __init__ (self, pix_to_sky, origin=None) | |
| origin (self) | |
Protected Member Functions | |
| _radec (self, x, y, color=None) | |
| _xy (self, ra, dec, color=None) | |
| _newOrigin (self, origin) | |
Protected Attributes | |
| _pix_to_sky | |
| _origin | |
| _color | |
Detailed Description
Wrap a `lsst.afw.geom.SkyWcs` in a GalSim WCS.
Parameters
----------
pix_to_sky : `lsst.afw.geom.SkyWcs`
WCS to wrap.
origin : `galsim.PositionD`, optional
Origin in image coordinates.
Definition at line 7 of file wcs_wrapper.py.
Constructor & Destructor Documentation
◆ __init__()
| lsst.meas.extensions.piff.wcs_wrapper.CelestialWcsWrapper.__init__ | ( | self, | |
| pix_to_sky, | |||
| origin = None ) |
Definition at line 17 of file wcs_wrapper.py.
17 def __init__(self, pix_to_sky, origin=None):
18 if origin is None:
19 # Use galsim._PositionD as it's faster than galsim.PositionD
20 origin = galsim._PositionD(0.0, 0.0)
21 self._pix_to_sky = pix_to_sky
22 self._origin = origin
23 self._color = None
24
Member Function Documentation
◆ _newOrigin()
|
protected |
Return a new CelestialWcsWrapper with new origin.
Parameters
----------
origin : `galsim.PositionD`, optional
Origin in image coordinates.
Returns
-------
ret : `CelestialWcsWrapper`
Transformed WCS.
Definition at line 59 of file wcs_wrapper.py.
59 def _newOrigin(self, origin):
60 """Return a new CelestialWcsWrapper with new origin.
61
62 Parameters
63 ----------
64 origin : `galsim.PositionD`, optional
65 Origin in image coordinates.
66
67 Returns
68 -------
69 ret : `CelestialWcsWrapper`
70 Transformed WCS.
71 """
72 return CelestialWcsWrapper(self._pix_to_sky, origin=origin)
73
74
◆ _radec()
|
protected |
Definition at line 31 of file wcs_wrapper.py.
31 def _radec(self, x, y, color=None):
32 x1 = np.atleast_1d(x)
33 y1 = np.atleast_1d(y)
34
35 ra, dec = self._pix_to_sky.pixelToSkyArray(x1, y1)
36
37 if np.ndim(x) == np.ndim(y) == 0:
38 return ra[0], dec[0]
39 else:
40 # Sanity checks that the inputs are the same shape.
41 assert np.ndim(x) == np.ndim(y)
42 assert x.shape == y.shape
43 return ra, dec
44
◆ _xy()
|
protected |
Definition at line 45 of file wcs_wrapper.py.
45 def _xy(self, ra, dec, color=None):
46 r1 = np.atleast_1d(ra)
47 d1 = np.atleast_1d(dec)
48
49 x, y = self._pix_to_sky.skyToPixelArray(r1, d1)
50
51 if np.ndim(ra) == np.ndim(dec) == 0:
52 return x[0], y[0]
53 else:
54 # Sanity checks that the inputs are the same shape.
55 assert np.ndim(ra) == np.ndim(dec)
56 assert ra.shape == dec.shape
57 return x, y
58
◆ origin()
| lsst.meas.extensions.piff.wcs_wrapper.CelestialWcsWrapper.origin | ( | self | ) |
The image coordinate position to use as the origin.
Definition at line 26 of file wcs_wrapper.py.
26 def origin(self):
27 """The image coordinate position to use as the origin.
28 """
29 return self._origin
30
Member Data Documentation
◆ _color
|
protected |
Definition at line 23 of file wcs_wrapper.py.
◆ _origin
|
protected |
Definition at line 22 of file wcs_wrapper.py.
◆ _pix_to_sky
|
protected |
Definition at line 21 of file wcs_wrapper.py.
The documentation for this class was generated from the following file:
- /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/meas_extensions_piff/g64a986408d+80768bd682/python/lsst/meas/extensions/piff/wcs_wrapper.py
