LSST Applications g04a91732dc+146a938ab0,g07dc498a13+80b84b0d75,g0fba68d861+4c4f3dcb5c,g1409bbee79+80b84b0d75,g1a7e361dbc+80b84b0d75,g1fd858c14a+f6e422e056,g20f46db602+333b6c0f32,g35bb328faa+fcb1d3bbc8,g42c1b31a95+a1301e4c20,g4d2262a081+f1facf12e5,g4d39ba7253+9b833be27e,g4e0f332c67+5d362be553,g53246c7159+fcb1d3bbc8,g60b5630c4e+9b833be27e,g78460c75b0+2f9a1b4bcd,g786e29fd12+cf7ec2a62a,g7b71ed6315+fcb1d3bbc8,g8852436030+790117df0f,g89139ef638+80b84b0d75,g8d6b6b353c+9b833be27e,g9125e01d80+fcb1d3bbc8,g989de1cb63+80b84b0d75,g9f33ca652e+9c6b68d7f3,ga9baa6287d+9b833be27e,gaaedd4e678+80b84b0d75,gabe3b4be73+1e0a283bba,gb1101e3267+9f3571abad,gb58c049af0+f03b321e39,gb90eeb9370+691e4ab549,gc741bbaa4f+2bcd3860df,gcf25f946ba+790117df0f,gd315a588df+5b65d88fe4,gd6cbbdb0b4+c8606af20c,gd9a9a58781+fcb1d3bbc8,gde0f65d7ad+ee6a3faa19,ge278dab8ac+932305ba37,ge82c20c137+76d20ab76d,gee8db133a9+2a6ae0040b,w.2025.10
LSST Data Management Base Package
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SkyWcs.h File Reference
#include <memory>
#include <utility>
#include <vector>
#include "Eigen/Core"
#include "astshim.h"
#include "ndarray.h"
#include "lsst/daf/base/PropertyList.h"
#include "lsst/geom/AffineTransform.h"
#include "lsst/geom/Angle.h"
#include "lsst/geom/Point.h"
#include "lsst/afw/geom/Endpoint.h"
#include "lsst/afw/geom/Transform.h"
#include "lsst/afw/table/io/Persistable.h"
#include "lsst/afw/typehandling/Storable.h"

Go to the source code of this file.

Classes

class  lsst::afw::geom::SkyWcs
 A 2-dimensional celestial WCS that transform pixels to ICRS RA/Dec, using the LSST standard for pixels. More...
 

Namespaces

namespace  lsst
 
namespace  lsst::afw
 
namespace  lsst::afw::geom
 

Functions

Eigen::Matrix2d lsst::afw::geom::makeCdMatrix (lsst::geom::Angle const &scale, lsst::geom::Angle const &orientation=0 *lsst::geom::degrees, bool flipX=false)
 Make a WCS CD matrix.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeFlippedWcs (SkyWcs const &wcs, bool flipLR, bool flipTB, lsst::geom::Point2D const &center)
 Return a copy of a FITS-WCS with pixel positions flipped around a specified center.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeModifiedWcs (TransformPoint2ToPoint2 const &pixelTransform, SkyWcs const &wcs, bool modifyActualPixels)
 Create a new SkyWcs whose pixels are transformed by pixelTransform, as described below.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeSkyWcs (daf::base::PropertySet &metadata, bool strip=false)
 Construct a SkyWcs from FITS keywords.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeSkyWcs (lsst::geom::Point2D const &crpix, lsst::geom::SpherePoint const &crval, Eigen::Matrix2d const &cdMatrix, std::string const &projection="TAN")
 Construct a simple FITS SkyWcs with no distortion.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeSkyWcs (TransformPoint2ToPoint2 const &pixelsToFieldAngle, lsst::geom::Angle const &orientation, bool flipX, lsst::geom::SpherePoint const &boresight, std::string const &projection="TAN")
 Construct a FITS SkyWcs from camera geometry.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeTanSipWcs (lsst::geom::Point2D const &crpix, lsst::geom::SpherePoint const &crval, Eigen::Matrix2d const &cdMatrix, Eigen::MatrixXd const &sipA, Eigen::MatrixXd const &sipB)
 Construct a TAN-SIP SkyWcs with forward SIP distortion terms and an iterative inverse.
 
std::shared_ptr< SkyWcslsst::afw::geom::makeTanSipWcs (lsst::geom::Point2D const &crpix, lsst::geom::SpherePoint const &crval, Eigen::Matrix2d const &cdMatrix, Eigen::MatrixXd const &sipA, Eigen::MatrixXd const &sipB, Eigen::MatrixXd const &sipAp, Eigen::MatrixXd const &sipBp)
 Construct a TAN WCS with forward and inverse SIP distortion terms.
 
std::shared_ptr< TransformPoint2ToPoint2lsst::afw::geom::makeWcsPairTransform (SkyWcs const &src, SkyWcs const &dst)
 A Transform obtained by putting two SkyWcs objects "back to back".
 
std::shared_ptr< TransformPoint2ToSpherePointlsst::afw::geom::getIntermediateWorldCoordsToSky (SkyWcs const &wcs, bool simplify=true)
 Return a transform from intermediate world coordinates to sky.
 
std::shared_ptr< TransformPoint2ToPoint2lsst::afw::geom::getPixelToIntermediateWorldCoords (SkyWcs const &wcs, bool simplify=true)
 Return a transform from pixel coordinates to intermediate world coordinates.
 
std::ostreamlsst::afw::geom::operator<< (std::ostream &os, SkyWcs const &wcs)
 Print a SkyWcs to an ostream (delegates to SkyWcs.toString()).