File AstrometryMapping.h

namespace lsst

Class for a simple mapping implementing a generic AstrometryTransform.

Remove all non-astronomical counts from the Chunk Exposure’s pixels.

Forward declarations for lsst::utils::Cache

For details on the Cache class, see the Cache.h file.

It uses a template rather than a pointer so that the derived classes can use the specifics of the transform. The class simplePolyMapping overloads a few routines.

A base class for image defects

Numeric constants used by the Integrate.h integrator routines.

Compute Image Statistics

Note

Gauss-Kronrod-Patterson quadrature coefficients for use in quadpack routine qng. These coefficients were calculated with 101 decimal digit arithmetic by L. W. Fullerton, Bell Labs, Nov 1981.

Note

The Statistics class itself can only handle lsst::afw::image::MaskedImage() types. The philosophy has been to handle other types by making them look like lsst::afw::image::MaskedImage() and reusing that code. Users should have no need to instantiate a Statistics object directly, but should use the overloaded makeStatistics() factory functions.

namespace jointcal

class AstrometryMapping

#include <AstrometryMapping.h>

virtual class needed in the abstraction of the distortion model

Subclassed by lsst::jointcal::ChipVisitAstrometryMapping, lsst::jointcal::SimpleAstrometryMapping

Public Functions

virtual std::size_t getNpar() const = 0

Number of parameters in total.

virtual void getMappingIndices(IndexVector &indices) const = 0

Sets how this set of parameters (of length Npar()) map into the “grand” fit Expects that indices has enough space reserved.

virtual void computeTransformAndDerivatives(FatPoint const &where, FatPoint &outPoint, Eigen::MatrixX2d &H) const = 0

Actually applies the AstrometryMapping and evaluates the derivatives w.r.t the fitted parameters.

This is grouped into a single call because for most models, evaluating the derivatives w.r.T parameters is not much longer than just transforming

virtual void transformPosAndErrors(FatPoint const &where, FatPoint &outPoint) const = 0

The same as above but without the parameter derivatives (used to evaluate chi^2)

virtual void offsetParams(Eigen::VectorXd const &delta) = 0

Remember the error scale and freeze it.

virtual void positionDerivative(Point const &where, Eigen::Matrix2d &derivative, double epsilon) const = 0

The derivative w.r.t. position.

virtual ~AstrometryMapping()