LSSTApplications  17.0+124,17.0+14,17.0+73,18.0.0+37,18.0.0+80,18.0.0-4-g68ffd23+4,18.1.0-1-g0001055+12,18.1.0-1-g03d53ef+5,18.1.0-1-g1349e88+55,18.1.0-1-g2505f39+44,18.1.0-1-g5315e5e+4,18.1.0-1-g5e4b7ea+14,18.1.0-1-g7e8fceb+4,18.1.0-1-g85f8cd4+48,18.1.0-1-g8ff0b9f+4,18.1.0-1-ga2c679d+1,18.1.0-1-gd55f500+35,18.1.0-10-gb58edde+2,18.1.0-11-g0997b02+4,18.1.0-13-gfe4edf0b+12,18.1.0-14-g259bd21+21,18.1.0-19-gdb69f3f+2,18.1.0-2-g5f9922c+24,18.1.0-2-gd3b74e5+11,18.1.0-2-gfbf3545+32,18.1.0-26-g728bddb4+5,18.1.0-27-g6ff7ca9+2,18.1.0-3-g52aa583+25,18.1.0-3-g8ea57af+9,18.1.0-3-gb69f684+42,18.1.0-3-gfcaddf3+6,18.1.0-32-gd8786685a,18.1.0-4-gf3f9b77+6,18.1.0-5-g1dd662b+2,18.1.0-5-g6dbcb01+41,18.1.0-6-gae77429+3,18.1.0-7-g9d75d83+9,18.1.0-7-gae09a6d+30,18.1.0-9-gc381ef5+4,w.2019.45
LSSTDataManagementBasePackage
curve.cc
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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:133
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.
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