# slice_wcs¶

pvextractor.slice_wcs(wcs, spatial_scale)[source]

Slice a WCS header for a spectral cube to a Position-Velocity WCS, with ctype “OFFSET” for the spatial offset direction

Parameters: wcs : WCS The WCS of the spectral cube. This should already be sanitized and have the spectral axis along the third dimension. spatial_scale: :class:~astropy.units.Quantity The spatial scale of the position axis wcs_slice WCS The resulting WCS slice