lsst.sphgeom gbd998247f1+585e252eca
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Q3cPixelization.h
Go to the documentation of this file.
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
30#ifndef LSST_SPHGEOM_Q3CPIXELIZATION_H_
31#define LSST_SPHGEOM_Q3CPIXELIZATION_H_
32
36
37#include <cstdint>
38#include <vector>
39
40#include "ConvexPolygon.h"
41#include "Pixelization.h"
42
43
44namespace lsst {
45namespace sphgeom {
46
58public:
60 static constexpr int MAX_LEVEL = 30;
61
65 explicit Q3cPixelization(int level);
66
68 int getLevel() const { return _level; }
69
74 ConvexPolygon quad(uint64_t i) const;
75
82 std::vector<uint64_t> neighborhood(uint64_t i) const;
83
84 RangeSet universe() const override {
85 return RangeSet(0, static_cast<uint64_t>(6) << 2 * _level);
86 }
87
88 std::unique_ptr<Region> pixel(uint64_t i) const override;
89
90 uint64_t index(UnitVector3d const & v) const override;
91
102 std::string toString(uint64_t i) const override;
103
104private:
105 int _level;
106
107 RangeSet _envelope(Region const & r, size_t maxRanges) const override;
108 RangeSet _interior(Region const & r, size_t maxRanges) const override;
109};
110
111}} // namespace lsst::sphgeom
112
113#endif // LSST_SPHGEOM_Q3CPIXELIZATION_H_
This file declares a class for representing convex polygons with great circle edges on the unit spher...
This file defines an interface for pixelizations of the sphere.
Definition ConvexPolygon.h:64
Definition Pixelization.h:84
Definition Q3cPixelization.h:57
std::string toString(uint64_t i) const override
Definition Q3cPixelization.cc:287
RangeSet universe() const override
universe returns the set of all pixel indexes for this pixelization.
Definition Q3cPixelization.h:84
int getLevel() const
getLevel returns the subdivision level of this pixelization.
Definition Q3cPixelization.h:68
uint64_t index(UnitVector3d const &v) const override
index computes the index of the pixel for v.
Definition Q3cPixelization.cc:319
std::vector< uint64_t > neighborhood(uint64_t i) const
Definition Q3cPixelization.cc:278
Q3cPixelization(int level)
Definition Q3cPixelization.cc:263
static constexpr int MAX_LEVEL
The maximum supported cube-face grid resolution is 2^30 by 2^30.
Definition Q3cPixelization.h:60
ConvexPolygon quad(uint64_t i) const
Definition Q3cPixelization.cc:269
std::unique_ptr< Region > pixel(uint64_t i) const override
Definition Q3cPixelization.cc:308
Definition RangeSet.h:106
Definition Region.h:86
Definition UnitVector3d.h:62