39 LOG_LOGGER _log =
LOG_GET(
"jointcal.SimpleAstrometryModel");
47 bool initFromWcs,
unsigned nNotFit,
unsigned order)
48 : _skyToTangentPlane(projectionHandler)
53 for (
auto i = ccdImageList.
cbegin(); i != ccdImageList.
cend(); ++i, ++count) {
55 if (count < nNotFit) {
73 while (
unsigned(pol.
getNpar()) > 2 * nObj) {
74 LOGLS_WARN(_log,
"Reducing polynomial order from " 75 << pol.
getOrder() <<
", due to too few sources (" << nObj
76 <<
" vs. " << pol.
getNpar() <<
" parameters)");
92 pol = pol * shiftAndNormalize.
inverted();
101 return findMapping(ccdImage);
105 if (whatToFit.
find(
"Distortions") == std::string::npos) {
106 LOGLS_ERROR(_log,
"AssignIndices was called and Distortions is *not* in whatToFit.");
109 unsigned index = firstIndex;
110 for (
auto i = _myMap.begin(); i != _myMap.end(); ++i) {
120 for (
auto &i : _myMap) {
121 auto mapping = i.second.get();
122 mapping->offsetParams(delta.segment(mapping->getIndex(), mapping->getNpar()));
127 for (
auto &i : _myMap) i.second->freezeErrorTransform();
132 for (
auto &i : _myMap) {
133 total += i.second->getNpar();
152 afw::geom::Point2D(0, 0),
153 afw::geom::SpherePoint(tangentPoint.x, tangentPoint.y, afw::geom::degrees),
155 auto iwcToSkyMap = iwcToSkyWcs->getFrameDict()->getMapping(
"PIXELS",
"SKY");
156 auto skyFrame = iwcToSkyWcs->getFrameDict()->getFrame(
"SKY");
159 frameDict.
addFrame(
"IWC", *iwcToSkyMap, *skyFrame);
160 return std::make_shared<afw::geom::SkyWcs>(frameDict);
165 if (i == _myMap.end())
167 "SimpleAstrometryModel cannot find CcdImage " + ccdImage.
getName());
168 return i->second.get();
#define LOGLS_WARN(logger, message)
AstrometryTransform const & getTransform(CcdImage const &ccdImage) const
Access to mappings.
SimpleAstrometryModel(CcdImageList const &ccdImageList, const std::shared_ptr< ProjectionHandler const > projectionHandler, bool initFromWCS, unsigned nNotFit=0, unsigned order=3)
Sky2TP is just a name, it can be anything.
const AstrometryMapping * getMapping(CcdImage const &) const override
Mapping associated to a given CcdImage.
void offsetParams(Eigen::VectorXd const &delta) override
Offset the parameters by the provided amounts (by -delta).
std::shared_ptr< AstrometryTransform > const getPixelToTangentPlane() const
std::string getName() const
Return the _name that identifies this ccdImage.
Mapping implementation for a polynomial transformation.
unsigned getNpar() const
Number of parameters in total.
const std::shared_ptr< AstrometryTransform const > getSkyToTangentPlane(CcdImage const &ccdImage) const override
the mapping of sky coordinates (i.e.
std::shared_ptr< afw::geom::SkyWcs > makeSkyWcs(CcdImage const &ccdImage) const override
Make a SkyWcs that contains this model.
void setIndex(unsigned i)
rectangle with sides parallel to axes.
AstrometryTransformLinear normalizeCoordinatesTransform(const Frame &frame)
Returns the transformation that maps the input frame along both axes to [-1,1].
Class for a simple mapping implementing a generic AstrometryTransform.
void addFrame(int iframe, Mapping const &map, Frame const &frame) override
int getTotalParameters() const override
Return the total number of parameters in this model.
This one is the Tangent Plane (called gnomonic) projection (from celestial sphere to tangent plane) ...
T dynamic_pointer_cast(T... args)
#define LSST_EXCEPT(type,...)
MeasuredStarList const & getCatalogForFit() const
Gets the catalog to be used for fitting, which may have been cleaned-up.
std::shared_ptr< SkyWcs > makeSkyWcs(daf::base::PropertySet &metadata, bool strip=false)
Eigen::Matrix2d makeCdMatrix(lsst::geom::Angle const &scale, lsst::geom::Angle const &orientation=0 *lsst::geom::degrees, bool flipX=false)
virtual class needed in the abstraction of the distortion model
CcdImageKey getHashKey() const
Handler of an actual image from a single CCD.
unsigned assignIndices(std::string const &whatToFit, unsigned firstIndex) override
Positions the various parameter sets into the parameter vector, starting at firstIndex.
#define LOGLS_ERROR(logger, message)
void freezeErrorTransform() override
Frame const & getImageFrame() const
Frame in pixels.