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LSST Data Management Base Package
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mapping.cc
Go to the documentation of this file.
1/*
2 * LSST Data Management System
3 *
4 * This product includes software developed by the
5 * LSST Project (http://www.lsst.org/).
6 * See the COPYRIGHT file
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the LSST License Statement and
19 * the GNU General Public License along with this program. If not,
20 * see <https://www.lsstcorp.org/LegalNotices/>.
21 */
22#include <pybind11/pybind11.h>
23#include <pybind11/stl.h>
24#include "ndarray/pybind11.h"
25
26#include "astshim/base.h"
27#include "astshim/Mapping.h"
28#include "astshim/Object.h"
29#include "astshim/ParallelMap.h"
30#include "astshim/SeriesMap.h"
31
32namespace py = pybind11;
33using namespace pybind11::literals;
34
35namespace ast {
36namespace {
37
38PYBIND11_MODULE(mapping, mod) {
39 py::module::import("astshim.object");
40 py::module::import("astshim.mapBox");
41 py::module::import("astshim.mapSplit");
42
43 py::class_<Mapping, std::shared_ptr<Mapping>, Object> cls(mod, "Mapping");
44
45 cls.def_property_readonly("nIn", &Mapping::getNIn);
46 cls.def_property_readonly("nOut", &Mapping::getNOut);
47 cls.def_property_readonly("isSimple", &Mapping::getIsSimple);
48 cls.def_property_readonly("hasForward", &Mapping::hasForward);
49 cls.def_property_readonly("hasInverse", &Mapping::hasInverse);
50 cls.def_property_readonly("isInverted", &Mapping::isInverted);
51 cls.def_property_readonly("isLinear", &Mapping::getIsLinear);
52 cls.def_property("report", &Mapping::getReport, &Mapping::setReport);
53
54 cls.def("copy", &Mapping::copy);
55 cls.def("inverted", &Mapping::inverted);
56 cls.def("linearApprox", &Mapping::linearApprox, "lbnd"_a, "ubnd"_a, "tol"_a);
57 cls.def("then", &Mapping::then, "next"_a);
58 cls.def("under", &Mapping::under, "next"_a);
59 cls.def("rate", &Mapping::rate, "at"_a, "ax1"_a, "ax2"_a);
60 cls.def("simplified", &Mapping::simplified);
61 // wrap the overloads of applyForward, applyInverse, tranGridForward and tranGridInverse that return a new
62 // result
63 cls.def("applyForward", py::overload_cast<ConstArray2D const &>(&Mapping::applyForward, py::const_),
64 "from"_a);
65 cls.def("applyForward",
66 py::overload_cast<std::vector<double> const &>(&Mapping::applyForward, py::const_), "from"_a);
67 cls.def("applyInverse", py::overload_cast<ConstArray2D const &>(&Mapping::applyInverse, py::const_),
68 "from"_a);
69 cls.def("applyInverse",
70 py::overload_cast<std::vector<double> const &>(&Mapping::applyInverse, py::const_), "from"_a);
71 cls.def("tranGridForward",
72 py::overload_cast<PointI const &, PointI const &, double, int, int>(&Mapping::tranGridForward,
73 py::const_),
74 "lbnd"_a, "ubnd"_a, "tol"_a, "maxpix"_a, "nPoints"_a);
75 cls.def("tranGridInverse",
76 py::overload_cast<PointI const &, PointI const &, double, int, int>(&Mapping::tranGridInverse,
77 py::const_),
78 "lbnd"_a, "ubnd"_a, "tol"_a, "maxpix"_a, "nPoints"_a);
79}
80
81} // namespace
82} // namespace ast
bool hasForward() const
Is the forward transform available?
Definition: Mapping.h:114
std::shared_ptr< Mapping > simplified() const
Return a simplied version of the mapping (which may be a compound Mapping such as a CmpMap).
Definition: Mapping.h:248
bool isInverted() const
Is this an inverted mapping?
Definition: Mapping.h:95
void tranGridInverse(PointI const &lbnd, PointI const &ubnd, double tol, int maxpix, Array2D const &to) const
Transform a grid of points in the inverse direction.
Definition: Mapping.h:380
std::shared_ptr< Mapping > copy() const
Return a deep copy of this object.
Definition: Mapping.h:72
void tranGridForward(PointI const &lbnd, PointI const &ubnd, double tol, int maxpix, Array2D const &to) const
Transform a grid of points in the forward direction.
Definition: Mapping.h:358
SeriesMap then(Mapping const &next) const
Return a series compound mapping this(first(input)) containing shallow copies of the original.
Definition: Mapping.cc:37
bool getReport() const
Get Report: report transformed coordinates to stdout?
Definition: Mapping.h:105
void applyInverse(ConstArray2D const &from, Array2D const &to) const
Perform an inverse transformation on a 2-D array, putting the results into a pre-allocated 2-D array.
Definition: Mapping.h:294
void applyForward(ConstArray2D const &from, Array2D const &to) const
Perform a forward transformation on 2-D array, putting the results into a pre-allocated 2-D array.
Definition: Mapping.h:260
ParallelMap under(Mapping const &next) const
Return a parallel compound mapping containing shallow copies of the original.
Definition: Mapping.cc:39
Array2D linearApprox(PointD const &lbnd, PointD const &ubnd, double tol) const
Compute a linear approximation to the forward transformation.
Definition: Mapping.cc:49
bool getIsSimple() const
Get IsSimple: has the mapping been simplified?
Definition: Mapping.h:87
double rate(PointD const &at, int ax1, int ax2) const
Evaluate the rate of change of the Mapping with respect to a specified input, at a specified position...
Definition: Mapping.h:215
bool getIsLinear() const
Get IsLinear: is the Mapping linear?
Definition: Mapping.h:100
int getNOut() const
Get NOut: the number of output axes.
Definition: Mapping.h:82
void setReport(bool report)
Set Report: report transformed coordinates to stdout?
Definition: Mapping.h:225
bool hasInverse() const
Is the inverse transform available?
Definition: Mapping.h:123
int getNIn() const
Get NIn: the number of input axes.
Definition: Mapping.h:77
std::shared_ptr< Mapping > inverted() const
Get an inverse mapping.
Definition: Mapping.cc:41
AST wrapper classes and functions.
PYBIND11_MODULE(_cameraGeom, mod)
Definition: _cameraGeom.cc:38