reproject

stcal.alignment.reproject(wcs1: gwcs.wcs.WCS, wcs2: gwcs.wcs.WCS) → Callable

Compute reproection from wcs1 to wcs2.

Given two WCSs or transforms return a function which takes pixel coordinates in the first WCS or transform and computes them in pixel coordinates in the second one. It performs the forward transformation of wcs1 followed by the inverse of wcs2.

Parameters:

• wcs1 (astropy.wcs.WCS or gwcs.wcs.WCS) – Input WCS objects or transforms.

• wcs2 (astropy.wcs.WCS or gwcs.wcs.WCS) – Output WCS objects or transforms.

Returns:

• Function to compute the transformations. It takes x, y

• positions in wcs1 and returns x, y positions in wcs2.