File AstrometryModel.h¶
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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.
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namespace
jointcal -
class
AstrometryModel - #include <AstrometryModel.h>
Interface between AstrometryFit and the combinations of Mappings from pixels to some tangent plane (aka distortions).
- Parameters
log: Logger to send messages to, to keep names consistent when logging.
Subclassed by lsst::jointcal::ConstrainedAstrometryModel, lsst::jointcal::SimpleAstrometryModel
Public Functions
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AstrometryModel(LOG_LOGGER log)
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std::size_t
getNpar(CcdImage const &ccdImage) const Return the number of parameters in the mapping of CcdImage.
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virtual const AstrometryMapping *
getMapping(CcdImage const&) const = 0 Mapping associated to a given CcdImage.
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virtual Eigen::Index
assignIndices(std::string const &whatToFit, Eigen::Index firstIndex) = 0 Assign indices to parameters involved in mappings, starting at firstIndex. Returns the highest assigned index.
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virtual void
offsetParams(Eigen::VectorXd const &delta) = 0 Offset the parameters by the provided amounts (by -delta).
The shifts are applied according to the indices given in assignIndices.
- Parameters
[in] delta: vector of offsets to apply
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virtual const std::shared_ptr<AstrometryTransform const>
getSkyToTangentPlane(CcdImage const &ccdImage) const = 0 The transformation used to project the positions of FittedStars.
This defines the coordinate system into which the Mapping of this Ccdimage maps the pixel coordinates.
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virtual std::shared_ptr<afw::geom::SkyWcs>
makeSkyWcs(CcdImage const &ccdImage) const = 0 Make a SkyWcs that contains this model.
- Return
SkyWcs containing this model.
- Parameters
ccdImage: The exposure to create the SkyWcs for.
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virtual void
freezeErrorTransform() = 0
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virtual std::size_t
getTotalParameters() const = 0 Return the total number of parameters in this model.
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virtual
~AstrometryModel()
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bool
validate(CcdImageList const &ccdImageList, int ndof) const Return true if this is a “reasonable” model.
- Return
True if the model is valid on all ccdImages.
- Parameters
ccdImageList: The ccdImages to test the model validity on.ndof: The number of degrees of freedom in the fit, e.g. from Fitterbase.computeChi2().
Protected Functions
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virtual AstrometryMapping *
findMapping(CcdImage const &ccdImage) const = 0 Return a pointer to the mapping associated with this ccdImage.
Protected Attributes
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LOG_LOGGER
_log lsst.logging instance, to be created by a subclass so that messages have consistent name.
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class