LSSTApplications
17.0+124,17.0+14,17.0+73,18.0.0+37,18.0.0+80,18.0.0-4-g68ffd23+4,18.1.0-1-g0001055+12,18.1.0-1-g03d53ef+5,18.1.0-1-g1349e88+55,18.1.0-1-g2505f39+44,18.1.0-1-g5315e5e+4,18.1.0-1-g5e4b7ea+14,18.1.0-1-g7e8fceb+4,18.1.0-1-g85f8cd4+48,18.1.0-1-g8ff0b9f+4,18.1.0-1-ga2c679d+1,18.1.0-1-gd55f500+35,18.1.0-10-gb58edde+2,18.1.0-11-g0997b02+4,18.1.0-13-gfe4edf0b+12,18.1.0-14-g259bd21+21,18.1.0-19-gdb69f3f+2,18.1.0-2-g5f9922c+24,18.1.0-2-gd3b74e5+11,18.1.0-2-gfbf3545+32,18.1.0-26-g728bddb4+5,18.1.0-27-g6ff7ca9+2,18.1.0-3-g52aa583+25,18.1.0-3-g8ea57af+9,18.1.0-3-gb69f684+42,18.1.0-3-gfcaddf3+6,18.1.0-32-gd8786685a,18.1.0-4-gf3f9b77+6,18.1.0-5-g1dd662b+2,18.1.0-5-g6dbcb01+41,18.1.0-6-gae77429+3,18.1.0-7-g9d75d83+9,18.1.0-7-gae09a6d+30,18.1.0-9-gc381ef5+4,w.2019.45
LSSTDataManagementBasePackage
|
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. More... | |
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.