_distorted_to_undistorted

romancal.assign_wcs._distorted_to_undistorted(wcsobj)

This is a convenience function for Build 17 which returns the transform from “detector” to “undistorted pixels”. TODO: Add an ‘undistorted’ coordinate frame. The transform from detector to ‘undistorted’ is currently in the SIAF from ‘detector’ to ‘Ideal’ frame. The split is done in the code now. In the future this should be done in the distortion reference file and become part of the WCS.