Utility Functions

The utils module provides helpful functions for Resample such as creating image mask from model’s DQ array, computing average pixel area, loading a custom WCS from an ASDF file, etc.

stcal.resample.utils Module

Functions

calc_pixmap(wcs_from, wcs_to[, shape, ...])	Calculate pixel coordinates of one WCS corresponding to the native pixel grid of another WCS.
build_driz_weight(model[, weight_type, ...])	Build drizzle weight map.
build_mask(dqarr, good_bits[, flag_name_map])	Build a bit mask from an input DQ array and a bitvalue flag.
compute_mean_pixel_area(wcs[, shape])	Compute mean pixel area.
get_tmeasure(model)	Get tmeasure from datamodel.
is_flux_density(bunit)	Differentiate between surface brightness and flux density data units.
is_imaging_wcs(wcs)	Return True if wcs is an imaging WCS and False otherwise.
resample_range(data_shape[, bbox])