LSSTApplications  16.0-11-g09ed895+2,16.0-11-g12e47bd,16.0-11-g9bb73b2+6,16.0-12-g5c924a4+6,16.0-14-g9a974b3+1,16.0-15-g1417920+1,16.0-15-gdd5ca33+1,16.0-16-gf0259e2,16.0-17-g31abd91+7,16.0-17-g7d7456e+7,16.0-17-ga3d2e9f+13,16.0-18-ga4d4bcb+1,16.0-18-gd06566c+1,16.0-2-g0febb12+21,16.0-2-g9d5294e+69,16.0-2-ga8830df+6,16.0-20-g21842373+7,16.0-24-g3eae5ec,16.0-28-gfc9ea6c+4,16.0-29-ge8801f9,16.0-3-ge00e371+34,16.0-4-g18f3627+13,16.0-4-g5f3a788+20,16.0-4-ga3eb747+10,16.0-4-gabf74b7+29,16.0-4-gb13d127+6,16.0-49-g42e581f7+6,16.0-5-g27fb78a+7,16.0-5-g6a53317+34,16.0-5-gb3f8a4b+87,16.0-6-g9321be7+4,16.0-6-gcbc7b31+42,16.0-6-gf49912c+29,16.0-7-gd2eeba5+51,16.0-71-ge89f8615e,16.0-8-g21fd5fe+29,16.0-8-g3a9f023+20,16.0-8-g4734f7a+1,16.0-8-g5858431+3,16.0-9-gf5c1f43+8,master-gd73dc1d098+1,w.2019.01
LSSTDataManagementBasePackage
curve.cc
Go to the documentation of this file.
1 /*
2  * LSST Data Management System
3  * See COPYRIGHT file at the top of the source tree.
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 #include "pybind11/pybind11.h"
23 
24 #include "lsst/sphgeom/curve.h"
25 
26 namespace py = pybind11;
27 using namespace pybind11::literals;
28 
29 namespace lsst {
30 namespace sphgeom {
31 namespace {
32 
33 PYBIND11_MODULE(curve, mod) {
34  mod.def("log2", (uint8_t(*)(uint64_t)) & log2);
35  mod.def("mortonIndex", (uint64_t(*)(uint32_t, uint32_t)) & mortonIndex,
36  "x"_a, "y"_a);
37  mod.def("mortonIndexInverse",
39  "z"_a);
40  mod.def("mortonToHilbert", &mortonToHilbert, "z"_a, "m"_a);
41  mod.def("hilbertToMorton", &hilbertToMorton, "h"_a, "m"_a);
42  mod.def("hilbertIndex",
43  (uint64_t(*)(uint32_t, uint32_t, int)) & hilbertIndex, "x"_a, "y"_a,
44  "m"_a);
45  mod.def("hilbertIndexInverse",
46  (std::tuple<uint32_t, uint32_t>(*)(uint64_t, int)) &
48  "h"_a, "m"_a);
49 }
50 
51 } // <anonymous>
52 } // sphgeom
53 } // lsst
uint64_t hilbertToMorton(uint64_t h, int m)
hilbertToMorton converts the 2m-bit Hilbert index h to the corresponding Morton index.
Definition: curve.h:290
uint64_t mortonIndex(uint32_t x, uint32_t y)
mortonIndex interleaves the bits of x and y.
Definition: curve.h:148
PYBIND11_MODULE(camera, mod)
Definition: camera.cc:34
uint64_t mortonToHilbert(uint64_t z, int m)
mortonToHilbert converts the 2m-bit Morton index z to the corresponding Hilbert index.
Definition: curve.h:236
A base class for image defects.
Definition: cameraGeom.dox:3
This file contains functions for space-filling curves.
std::tuple< uint32_t, uint32_t > hilbertIndexInverse(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:361
uint8_t log2(uint64_t x)
Definition: curve.h:98
uint64_t hilbertIndex(uint32_t x, uint32_t y, int m)
hilbertIndex returns the index of (x, y) in a 2-D Hilbert curve.
Definition: curve.h:349
std::tuple< uint32_t, uint32_t > mortonIndexInverse(uint64_t z)
mortonIndexInverse separates the even and odd bits of z.
Definition: curve.h:195