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LSST Data Management Base Package
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_interpolate.cc
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1/*
2 * LSST Data Management System
3 * Copyright 2008-2016 AURA/LSST.
4 *
5 * This product includes software developed by the
6 * LSST Project (http://www.lsst.org/).
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
23#include <pybind11/pybind11.h>
25#include <pybind11/stl.h>
26
27#include "ndarray/pybind11.h"
28
30
31namespace py = pybind11;
32using namespace pybind11::literals;
33
34using namespace lsst::afw::math;
35namespace lsst {
36namespace afw {
37namespace math {
39 using PyClass = py::classh<Interpolate>;
40
41 auto clsInterpolate = wrappers.wrapType(PyClass(wrappers.module, "Interpolate"), [](auto &mod,
42 auto &cls) {
43 cls.def("interpolate", [](Interpolate &t, double const x) {
44 /*
45 We use a lambda function here because interpolate (with a double) is a virtual function
46 and therefor cannot be wrapped directly.
47 */
48 return t.interpolate(x);
49 });
50
51 cls.def("interpolate", (std::vector<double>(Interpolate::*)(std::vector<double> const &) const) &
53 cls.def("interpolate",
54 (ndarray::Array<double, 1>(Interpolate::*)(ndarray::Array<double const, 1> const &) const) &
56
57 mod.def("makeInterpolate",
60 "x"_a, "y"_a, "style"_a = Interpolate::AKIMA_SPLINE);
61 mod.def("makeInterpolate",
62 (std::shared_ptr<Interpolate>(*)(ndarray::Array<double const, 1> const &,
63 ndarray::Array<double const, 1> const &y,
65 "x"_a, "y"_a, "style"_a = Interpolate::AKIMA_SPLINE);
66
67 mod.def("stringToInterpStyle", stringToInterpStyle, "style"_a);
68 mod.def("lookupMaxInterpStyle", lookupMaxInterpStyle, "n"_a);
69 mod.def("lookupMinInterpPoints", lookupMinInterpPoints, "style"_a);
70 });
71 wrappers.wrapType(py::enum_<Interpolate::Style>(clsInterpolate, "Style"), [](auto &mod, auto &enm) {
72 enm.value("UNKNOWN", Interpolate::Style::UNKNOWN);
73 enm.value("CONSTANT", Interpolate::Style::CONSTANT);
74 enm.value("LINEAR", Interpolate::Style::LINEAR);
75 enm.value("NATURAL_SPLINE", Interpolate::Style::NATURAL_SPLINE);
76 enm.value("CUBIC_SPLINE", Interpolate::Style::CUBIC_SPLINE);
77 enm.value("CUBIC_SPLINE_PERIODIC", Interpolate::Style::CUBIC_SPLINE_PERIODIC);
78 enm.value("AKIMA_SPLINE", Interpolate::Style::AKIMA_SPLINE);
79 enm.value("AKIMA_SPLINE_PERIODIC", Interpolate::Style::AKIMA_SPLINE_PERIODIC);
80 enm.value("NUM_STYLES", Interpolate::Style::NUM_STYLES);
81 enm.export_values();
82 });
83}
84} // namespace math
85} // namespace afw
86} // namespace lsst
virtual double interpolate(double const x) const =0
A helper class for subdividing pybind11 module across multiple translation units (i....
Definition python.h:242
PyType wrapType(PyType cls, ClassWrapperCallback function, bool setModuleName=true)
Add a type (class or enum) wrapper, deferring method and other attribute definitions until finish() i...
Definition python.h:391
pybind11::module module
The module object passed to the PYBIND11_MODULE block that contains this WrapperCollection.
Definition python.h:448
Interpolate::Style lookupMaxInterpStyle(int const n)
Get the highest order Interpolation::Style available for 'n' points.
int lookupMinInterpPoints(Interpolate::Style const style)
Get the minimum number of points needed to use the requested interpolation style.
Interpolate::Style stringToInterpStyle(std::string const &style)
Conversion function to switch a string to an Interpolate::Style.
void wrapInterpolate(lsst::cpputils::python::WrapperCollection &wrappers)
py::classh< PixelAreaBoundedField, BoundedField > PyClass
std::shared_ptr< Interpolate > makeInterpolate(std::vector< double > const &x, std::vector< double > const &y, Interpolate::Style const style=Interpolate::AKIMA_SPLINE)
A factory function to make Interpolate objects.