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Wenzel Jakob9e0a0562016-05-05 20:33:54 +02001/*
2 example/eigen.cpp -- automatic conversion of Eigen types
3
4 Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
5
6 All rights reserved. Use of this source code is governed by a
7 BSD-style license that can be found in the LICENSE file.
8*/
9
10#include "example.h"
11#include <pybind11/eigen.h>
12
13void init_eigen(py::module &m) {
14 typedef Eigen::Matrix<float, 5, 6, Eigen::RowMajor> FixedMatrixR;
15 typedef Eigen::Matrix<float, 5, 6> FixedMatrixC;
16 typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor> DenseMatrixR;
17 typedef Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic> DenseMatrixC;
18 typedef Eigen::SparseMatrix<float, Eigen::RowMajor> SparseMatrixR;
19 typedef Eigen::SparseMatrix<float> SparseMatrixC;
20
21 // Non-symmetric matrix with zero elements
22 Eigen::MatrixXf mat(5, 6);
23 mat << 0, 3, 0, 0, 0, 11, 22, 0, 0, 0, 17, 11, 7, 5, 0, 1, 0, 11, 0,
24 0, 0, 0, 0, 11, 0, 0, 14, 0, 8, 11;
25
26 m.def("fixed_r", [mat]() -> FixedMatrixR {
27 return FixedMatrixR(mat);
28 });
29
30 m.def("fixed_c", [mat]() -> FixedMatrixC {
31 return FixedMatrixC(mat);
32 });
33
34 m.def("fixed_passthrough_r", [](const FixedMatrixR &m) -> FixedMatrixR {
35 return m;
36 });
37
38 m.def("fixed_passthrough_c", [](const FixedMatrixC &m) -> FixedMatrixC {
39 return m;
40 });
41
42 m.def("dense_r", [mat]() -> DenseMatrixR {
43 return DenseMatrixR(mat);
44 });
45
46 m.def("dense_c", [mat]() -> DenseMatrixC {
47 return DenseMatrixC(mat);
48 });
49
50 m.def("dense_passthrough_r", [](const DenseMatrixR &m) -> DenseMatrixR {
51 return m;
52 });
53
54 m.def("dense_passthrough_c", [](const DenseMatrixC &m) -> DenseMatrixC {
55 return m;
56 });
57
58 m.def("sparse_r", [mat]() -> SparseMatrixR {
59 return Eigen::SparseView<Eigen::MatrixXf>(mat);
60 });
61
62 m.def("sparse_c", [mat]() -> SparseMatrixC {
63 return Eigen::SparseView<Eigen::MatrixXf>(mat);
64 });
65
66 m.def("sparse_passthrough_r", [](const SparseMatrixR &m) -> SparseMatrixR {
67 return m;
68 });
69
70 m.def("sparse_passthrough_c", [](const SparseMatrixC &m) -> SparseMatrixC {
71 return m;
72 });
73}