lsst::afw::math::detail::AffineTransformPositionFunctor Class Reference

Derived functor class to transform pixel position for a destination image to its position in the source image via an AffineTransform. More...

#include <PositionFunctor.h>

Inheritance diagram for lsst::afw::math::detail::AffineTransformPositionFunctor:

Public Member Functions
	AffineTransformPositionFunctor (lsst::afw::geom::Point2D const &destXY0, lsst::afw::geom::AffineTransform const &affineTransform)
virtual lsst::afw::geom::Point2D	operator() (int destCol, int destRow) const
Public Member Functions inherited from lsst::afw::math::detail::PositionFunctor
	PositionFunctor ()
virtual	~PositionFunctor ()

Private Attributes
lsst::afw::geom::Point2D const &	_destXY0
lsst::afw::geom::AffineTransform	_affineTransform

Additional Inherited Members
Public Types inherited from lsst::afw::math::detail::PositionFunctor
typedef boost::shared_ptr < PositionFunctor >	Ptr

Detailed Description

Derived functor class to transform pixel position for a destination image to its position in the source image via an AffineTransform.

Definition at line 109 of file PositionFunctor.h.

Constructor & Destructor Documentation

lsst::afw::math::detail::AffineTransformPositionFunctor::AffineTransformPositionFunctor ( lsst::afw::geom::Point2D const &  destXY0, lsst::afw::geom::AffineTransform const &  affineTransform  )

inline

Parameters

destXY0	xy0 of destination image
affineTransform	affine transformation mapping source position to destination position

Definition at line 114 of file PositionFunctor.h.

          :
            PositionFunctor(),
            _destXY0(destXY0),
            _affineTransform() {
            _affineTransform = affineTransform.invert();
        }

Member Function Documentation

virtual lsst::afw::geom::Point2D lsst::afw::math::detail::AffineTransformPositionFunctor::operator() ( int  destCol, int  destRow  ) const

inlinevirtual

Implements lsst::afw::math::detail::PositionFunctor.

Definition at line 125 of file PositionFunctor.h.

                                                                              {
            double const col = lsst::afw::image::indexToPosition(destCol + _destXY0[0]);
            double const row = lsst::afw::image::indexToPosition(destRow + _destXY0[1]);
            lsst::afw::geom::Point2D p = _affineTransform(lsst::afw::geom::Point2D(col, row));
            return p;
        }

Member Data Documentation

lsst::afw::geom::AffineTransform lsst::afw::math::detail::AffineTransformPositionFunctor::_affineTransform

private

Definition at line 133 of file PositionFunctor.h.

lsst::afw::geom::Point2D const& lsst::afw::math::detail::AffineTransformPositionFunctor::_destXY0

private

Definition at line 132 of file PositionFunctor.h.

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The documentation for this class was generated from the following file:

• /home/lsstsw/stack/Linux64/afw/11.0-2-g04d2804/include/lsst/afw/math/detail/PositionFunctor.h