computePixelToDistortedPixel¶
-
lsst.afw.geom.computePixelToDistortedPixel(pixelToFocalPlane, focalPlaneToFieldAngle)¶ Compute the transform
pixelToDistortedPixel, which applies optical distortion specified byfocalPlaneToFieldAngle.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
pixelToIwcwith: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.
- pixelToFocalPlane :