calc_pixmap

drizzle.calc_pixmap.calc_pixmap(first_wcs, second_wcs)

Calculate a mapping between the pixels of two images.

Parameters

first_wcswcs

A WCS object representing the coordinate system you are converting from

seond_wcswcs

A WCS object representing the coordinate system you are converting to

Returns

A three dimensional array representing the transformation between the two. The last dimension is of length two and contains the x and y coordinates of a pixel center, repectively. The other two coordinates correspond to the two coordinates of the image the first WCS is from.