linear_wcs_to_arrays

gammapy.utils.wcs.linear_wcs_to_arrays(wcs, nbins_x, nbins_y)

Make a 2D linear binning from a WCS object.

This method gives the correct answer only for linear X, Y binning. The method expects angular quantities in the WCS object. X is identified with WCS axis 1, Y is identified with WCS axis 2. The method needs the number of bins as input, since it is not in the WCS object.

Parameters:

wcs : WCS

WCS object describing the bin coordinates

nbins_x : int

number of bins in X coordinate

nbins_y : int

number of bins in Y coordinate

Returns:

bin_edges_x : Angle

array with the bin edges for the X coordinate

bin_edges_y : Angle

array with the bin edges for the Y coordinate