LSST Applications
21.0.0-147-g0e635eb1+1acddb5be5,22.0.0+052faf71bd,22.0.0+1ea9a8b2b2,22.0.0+6312710a6c,22.0.0+729191ecac,22.0.0+7589c3a021,22.0.0+9f079a9461,22.0.1-1-g7d6de66+b8044ec9de,22.0.1-1-g87000a6+536b1ee016,22.0.1-1-g8e32f31+6312710a6c,22.0.1-10-gd060f87+016f7cdc03,22.0.1-12-g9c3108e+df145f6f68,22.0.1-16-g314fa6d+c825727ab8,22.0.1-19-g93a5c75+d23f2fb6d8,22.0.1-19-gb93eaa13+aab3ef7709,22.0.1-2-g8ef0a89+b8044ec9de,22.0.1-2-g92698f7+9f079a9461,22.0.1-2-ga9b0f51+052faf71bd,22.0.1-2-gac51dbf+052faf71bd,22.0.1-2-gb66926d+6312710a6c,22.0.1-2-gcb770ba+09e3807989,22.0.1-20-g32debb5+b8044ec9de,22.0.1-23-gc2439a9a+fb0756638e,22.0.1-3-g496fd5d+09117f784f,22.0.1-3-g59f966b+1e6ba2c031,22.0.1-3-g849a1b8+f8b568069f,22.0.1-3-gaaec9c0+c5c846a8b1,22.0.1-32-g5ddfab5d3+60ce4897b0,22.0.1-4-g037fbe1+64e601228d,22.0.1-4-g8623105+b8044ec9de,22.0.1-5-g096abc9+d18c45d440,22.0.1-5-g15c806e+57f5c03693,22.0.1-7-gba73697+57f5c03693,master-g6e05de7fdc+c1283a92b8,master-g72cdda8301+729191ecac,w.2021.39
LSST Data Management Base Package
|
Functions | |
def | getSipMatrixFromMetadata (metadata, name) |
def | computePixelToDistortedPixel (pixelToFocalPlane, focalPlaneToFieldAngle) |
def lsst.afw.geom.wcsUtils.computePixelToDistortedPixel | ( | pixelToFocalPlane, | |
focalPlaneToFieldAngle | |||
) |
Compute the transform ``pixelToDistortedPixel``, which applies optical distortion specified by ``focalPlaneToFieldAngle``. The resulting transform is designed to be used to convert a pure TAN WCS to a WCS that includes a model for optical distortion. In detail, the initial WCS will contain these frames and transforms:: PIXELS frame -> pixelToIwc -> IWC frame -> gridToIwc -> SkyFrame To produce the WCS with distortion, replace ``pixelToIwc`` with:: pixelToDistortedPixel -> pixelToIwc Parameters ---------- pixelToFocalPlane : `lsst.afw.geom.TransformPoint2ToPoint2` Transform parent pixel coordinates to focal plane coordinates focalPlaneToFieldAngle : `lsst.afw.geom.TransformPoint2ToPoint2` Transform focal plane coordinates to field angle coordinates Returns ------- pixelToDistortedPixel : `lsst.afw.geom.TransformPoint2ToPoint2` A transform that applies the effect of the optical distortion model.
Definition at line 65 of file wcsUtils.py.
def lsst.afw.geom.wcsUtils.getSipMatrixFromMetadata | ( | metadata, | |
name | |||
) |
Extract a SIP matrix from FITS TAN-SIP WCS metadata. Omitted coefficients are set to 0 and all coefficients may be omitted. Parameters ---------- metadata : `lsst.daf.base.PropertySet` FITS metadata. name : `str` Name of TAN-SIP matrix (``"A"``, ``"B"``, ``"Ap"``, or ``"Bp"``). Returns ------- `numpy.array` The SIP matrix. Raises ------ TypeError If the order keyword ``<name>_ORDER`` (e.g. ``AP_ORDER``) is not found, the value of the order keyword cannot be read as an integer, the value of the order keyword is negative, or if a matrix parameter (e.g. ``AP_5_0``) cannot be read as a float.
Definition at line 34 of file wcsUtils.py.