LSST Applications g0265f82a02+d6b5cd48b5,g02d81e74bb+7bcba2e4e8,g2079a07aa2+14824f138e,g212a7c68fe+4b38ad7149,g2305ad1205+906def1e41,g295015adf3+564da5d084,g2bbee38e9b+d6b5cd48b5,g337abbeb29+d6b5cd48b5,g3ddfee87b4+cff7e20090,g487adcacf7+50712f9db4,g50ff169b8f+5929b3527e,g52b1c1532d+a6fc98d2e7,g591dd9f2cf+d19d1a10d7,g5a732f18d5+66d966b544,g64a986408d+7bcba2e4e8,g858d7b2824+7bcba2e4e8,g8a8a8dda67+a6fc98d2e7,g99cad8db69+808e2eeadf,g9ddcbc5298+d4bad12328,ga1e77700b3+246acaaf9c,ga8c6da7877+9e3c062e8e,gb0e22166c9+3863383f4c,gb6a65358fc+d6b5cd48b5,gb983acf43b+60bb7664b7,gba4ed39666+9664299f35,gbb8dafda3b+6623599aa9,gc07e1c2157+f6e5778202,gc120e1dc64+6e28925a4e,gc28159a63d+d6b5cd48b5,gcf0d15dbbd+cff7e20090,gdaeeff99f8+a38ce5ea23,ge6526c86ff+bcc88f9437,ge79ae78c31+d6b5cd48b5,gee10cc3b42+a6fc98d2e7,gf1cff7945b+7bcba2e4e8,v24.1.5.rc1
LSST Data Management Base Package
|
Abstract base class for all C++ measurement transformations. More...
#include <Transform.h>
Public Member Functions | |
BaseTransform (std::string const &name) | |
virtual | ~BaseTransform () |
virtual void | operator() (afw::table::SourceCatalog const &inputCatalog, afw::table::BaseCatalog &outputCatalog, afw::geom::SkyWcs const &wcs, afw::image::PhotoCalib const &photoCalib) const =0 |
Protected Member Functions | |
void | checkCatalogSize (afw::table::BaseCatalog const &cat1, afw::table::BaseCatalog const &cat2) const |
Ensure that catalogs have the same size. | |
Protected Attributes | |
std::string | _name |
Abstract base class for all C++ measurement transformations.
Measurement plugins return results in raw, uncalibrated units (eg fluxes or positions in pixels). The transformation system provides a mechanism for post-processing those results into a calibrated form (magnitudes, celestial coordinates, etc).
A measurement transformation should derive from BaseTransform. It should implement a constructor which takes three arguments:
Control
object describing the configuration of the measurement plugin.std::string
);lsst::afw::table::SchemaMapper
which links the input and output catalogs;The constructor should use the SchemaMapper to map fields from the input to output schemas and add additional keys to the output as required. For example:
Derived classes should also implement operator()
following the interface below. This will be called with a catalog containing the results of the measurement plugin and a catalog to be populated with transformed quantities, as well as WCS and calibration information. For example:
Note that it is safe to assume that both catalogs passed to operator()
are contiguous in memory. It is good practice to ensure that they are equal in size: this may be conveniently achieved by calling BaseTransform::checkCatalogSize()
.
operator()
may throw LengthError
if the transformation is impossible to complete. In this case, the contents of outputCatalog
is not guaranteed.
Definition at line 86 of file Transform.h.
|
inlineexplicit |
Definition at line 88 of file Transform.h.
|
inlinevirtual |
Definition at line 89 of file Transform.h.
|
inlineprotected |
Ensure that catalogs have the same size.
[in] | cat1 | Catalog for comparison |
[in] | cat2 | Catalog for comparison |
LengthError | Catalog sizes do not match |
Definition at line 102 of file Transform.h.
|
pure virtual |
|
protected |
Definition at line 107 of file Transform.h.