LSST Applications 29.0.1,g0fba68d861+132dd21e0a,g107a963962+1bb9f809a9,g1fd858c14a+005be21cae,g21d47ad084+8a07b29876,g325378336f+5d73323c8f,g330003fc43+40b4eaffc6,g35bb328faa+fcb1d3bbc8,g36ff55ed5b+9c28a42a87,g4e0f332c67+5fbd1e3e73,g53246c7159+fcb1d3bbc8,g60b5630c4e+9c28a42a87,g67b6fd64d1+a38b34ea13,g78460c75b0+2f9a1b4bcd,g786e29fd12+cf7ec2a62a,g7b71ed6315+fcb1d3bbc8,g86c591e316+6b2b2d0295,g8852436030+bf14db0e33,g89139ef638+a38b34ea13,g8b8da53e10+e3777245af,g9125e01d80+fcb1d3bbc8,g989de1cb63+a38b34ea13,g9f1445be69+9c28a42a87,g9f33ca652e+52c8f07962,ga9baa6287d+9c28a42a87,ga9e4eb89a6+9f84bd6575,gabe3b4be73+1e0a283bba,gb037a4e798+f3cbcd26c0,gb1101e3267+e7be8da0f8,gb58c049af0+f03b321e39,gb89ab40317+a38b34ea13,gcf25f946ba+bf14db0e33,gd6cbbdb0b4+bce7f7457e,gd9a9a58781+fcb1d3bbc8,gde0f65d7ad+53d424b1ae,ge278dab8ac+222406d50a,ge410e46f29+a38b34ea13,ge80e9994a3+664d6357dc,gf67bdafdda+a38b34ea13
LSST Data Management Base Package
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_curve.cc
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#include "pybind11/pybind11.h"
30
31#include "lsst/sphgeom/curve.h"
32
33namespace py = pybind11;
34using namespace pybind11::literals;
35
36namespace lsst {
37namespace sphgeom {
38
39void defineCurve(py::module &mod) {
40 mod.def("log2", (uint8_t(*)(uint64_t)) & log2);
41 mod.def("mortonIndex", (uint64_t(*)(uint32_t, uint32_t)) & mortonIndex,
42 "x"_a, "y"_a);
43 mod.def("mortonIndexInverse",
44 (std::tuple<uint32_t, uint32_t>(*)(uint64_t)) & mortonIndexInverse,
45 "z"_a);
46 mod.def("mortonToHilbert", &mortonToHilbert, "z"_a, "m"_a);
47 mod.def("hilbertToMorton", &hilbertToMorton, "h"_a, "m"_a);
48 mod.def("hilbertIndex",
49 (uint64_t(*)(uint32_t, uint32_t, int)) & hilbertIndex, "x"_a, "y"_a,
50 "m"_a);
51 mod.def("hilbertIndexInverse",
52 (std::tuple<uint32_t, uint32_t>(*)(uint64_t, int)) &
53 hilbertIndexInverse,
54 "h"_a, "m"_a);
55}
56
57} // sphgeom
58} // lsst
curve.h
This file contains functions for space-filling curves.
lsst::sphgeom::hilbertToMorton
std::uint64_t hilbertToMorton(std::uint64_t h, int m)
hilbertToMorton converts the 2m-bit Hilbert index h to the corresponding Morton index.
Definition curve.h:297
lsst::sphgeom::mortonIndex
std::uint64_t mortonIndex(std::uint32_t x, std::uint32_t y)
mortonIndex interleaves the bits of x and y.
Definition curve.h:155
lsst::sphgeom::mortonIndexInverse
std::tuple< std::uint32_t, std::uint32_t > mortonIndexInverse(std::uint64_t z)
mortonIndexInverse separates the even and odd bits of z.
Definition curve.h:202
lsst::sphgeom::hilbertIndex
std::uint64_t hilbertIndex(std::uint32_t x, std::uint32_t y, int m)
hilbertIndex returns the index of (x, y) in a 2-D Hilbert curve.
Definition curve.h:356
lsst::sphgeom::log2
std::uint8_t log2(std::uint64_t x)
Definition curve.h:105
lsst::sphgeom::hilbertIndexInverse
std::tuple< std::uint32_t, std::uint32_t > hilbertIndexInverse(std::uint64_t h, int m)
hilbertIndexInverse returns the point (x, y) with Hilbert index h, where x and y are m bit integers.
Definition curve.h:368
lsst::sphgeom::mortonToHilbert
std::uint64_t mortonToHilbert(std::uint64_t z, int m)
mortonToHilbert converts the 2m-bit Morton index z to the corresponding Hilbert index.
Definition curve.h:243
lsst::sphgeom::defineCurve
void defineCurve(py::module &mod)
Definition _curve.cc:39
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