Function lsst::meas::astrom::rotateWcsPixelsBy90

Function Documentation

std::shared_ptr<afw::geom::SkyWcs> lsst::meas::astrom::rotateWcsPixelsBy90(afw::geom::SkyWcs const &wcs, int nQuarter, geom::Extent2I const &dimensions)

Return a new SkyWcs that represents a rotation of the image it corresponds to about the image’s center.

Parameters

• [in] wcs: Original SkyWcs to be rotated.

• [in] nQuarter: Number of 90 degree rotations (positive is counterclockwise).

• [in] dimensions: Width and height of the image.