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LSST Data Management Base Package
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_convexPolygon.cc
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1/*
2 * This file is part of sphgeom.
3 *
4 * Developed for the LSST Data Management System.
5 * This product includes software developed by the LSST Project
6 * (http://www.lsst.org).
7 * See the COPYRIGHT file at the top-level directory of this distribution
8 * for details of code ownership.
9 *
10 * This software is dual licensed under the GNU General Public License and also
11 * under a 3-clause BSD license. Recipients may choose which of these licenses
12 * to use; please see the files gpl-3.0.txt and/or bsd_license.txt,
13 * respectively. If you choose the GPL option then the following text applies
14 * (but note that there is still no warranty even if you opt for BSD instead):
15 *
16 * This program is free software: you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation, either version 3 of the License, or
19 * (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program. If not, see <http://www.gnu.org/licenses/>.
28 */
29#include "pybind11/pybind11.h"
30#include "pybind11/stl.h"
31#include "pybind11/numpy.h"
32
33#include "lsst/sphgeom/python.h"
34
35#include "lsst/sphgeom/Box.h"
36#include "lsst/sphgeom/Box3d.h"
37#include "lsst/sphgeom/Circle.h"
41
44
45namespace py = pybind11;
46using namespace pybind11::literals;
47
48namespace lsst {
49namespace sphgeom {
50
51template <>
52void defineClass(py::classh<ConvexPolygon, Region> &cls) {
53 cls.attr("TYPE_CODE") = py::int_(ConvexPolygon::TYPE_CODE);
54
55 cls.def_static("convexHull", &ConvexPolygon::convexHull, "points"_a);
56
57 cls.def(py::init<std::vector<UnitVector3d> const &>(), "points"_a);
58 // Do not wrap the two unsafe (3 and 4 vertex) constructors
59 cls.def(py::init<ConvexPolygon const &>(), "convexPolygon"_a);
60
61 cls.def("__eq__", &ConvexPolygon::operator==, py::is_operator());
62 cls.def("__ne__", &ConvexPolygon::operator!=, py::is_operator());
63
64 cls.def("getVertices", &ConvexPolygon::getVertices);
65 cls.def("getCentroid", &ConvexPolygon::getCentroid);
66
67 // Note that much of the Region interface has already been wrapped. Here are bits that have not:
68 // (include overloads from Region that would otherwise be shadowed).
69 cls.def("contains", py::overload_cast<UnitVector3d const &>(&ConvexPolygon::contains, py::const_));
70 cls.def("contains", py::overload_cast<Region const &>(&ConvexPolygon::contains, py::const_));
71 cls.def("contains",
72 py::vectorize((bool (ConvexPolygon::*)(double, double, double) const)&ConvexPolygon::contains),
73 "x"_a, "y"_a, "z"_a);
74 cls.def("contains",
75 py::vectorize((bool (ConvexPolygon::*)(double, double) const)&ConvexPolygon::contains),
76 "lon"_a, "lat"_a);
77 cls.def("isDisjointFrom", &ConvexPolygon::isDisjointFrom);
78 cls.def("intersects", &ConvexPolygon::intersects);
79 cls.def("isWithin", &ConvexPolygon::isWithin);
80
81 cls.def("__repr__", [](ConvexPolygon const &self) {
82 return py::str("ConvexPolygon({!r})").format(self.getVertices());
83 });
84 cls.def(py::pickle(&python::encode, &python::decode<ConvexPolygon>));
85}
86
87} // sphgeom
88} // lsst
This file declares a class for representing axis-aligned bounding boxes in ℝ³.
This file declares a class for representing circular regions on the unit sphere.
This file declares a class for representing convex polygons with great circle edges on the unit spher...
This file declares a class for representing unit vectors in ℝ³.
ConvexPolygon is a closed convex polygon on the unit sphere.
static constexpr std::uint8_t TYPE_CODE
bool intersects(Region const &r) const
UnitVector3d getCentroid() const
The centroid of a polygon is its center of mass projected onto S², assuming a uniform mass distributi...
bool contains(UnitVector3d const &v) const override
bool isDisjointFrom(Region const &r) const
static ConvexPolygon convexHull(std::vector< UnitVector3d > const &points)
convexHull returns the convex hull of the given set of points if it exists and throws an exception ot...
std::vector< UnitVector3d > const & getVertices() const
bool isWithin(Region const &r) const
std::unique_ptr< R > decode(pybind11::bytes bytes)
Decode a Region from a pybind11 bytes object.
Definition utils.h:69
pybind11::bytes encode(Region const &self)
Encode a Region as a pybind11 bytes object.
Definition utils.h:61
void defineClass(Pybind11Class &cls)
This file declares a class for representing longitude/latitude angle boxes on the unit sphere.
This file declares a class for representing elliptical regions on the unit sphere.