File size: 7,023 Bytes
5b89cb9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | // This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#include "triangulate.h"
#ifdef ANSI_DECLARATORS
# define IGL_PREVIOUSLY_DEFINED_ANSI_DECLARATORS ANSI_DECLARATORS
# undef ANSI_DECLARATORS
#endif
#ifdef REAL
# define IGL_PREVIOUSLY_DEFINED_REAL REAL
# undef REAL
#endif
#ifdef VOID
# define IGL_PREVIOUSLY_DEFINED_VOID VOID
# undef VOID
#endif
#define ANSI_DECLARATORS
#define REAL double
#define VOID int
#include <triangle.h>
#undef ANSI_DECLARATORS
#ifdef IGL_PREVIOUSLY_DEFINED_ANSI_DECLARATORS
# define ANSI_DECLARATORS IGL_PREVIOUSLY_DEFINED_ANSI_DECLARATORS
#endif
#undef REAL
#ifdef IGL_PREVIOUSLY_DEFINED_REAL
# define REAL IGL_PREVIOUSLY_DEFINED_REAL
#endif
#undef VOID
#ifdef IGL_PREVIOUSLY_DEFINED_VOID
# define VOID IGL_PREVIOUSLY_DEFINED_VOID
#endif
template <
typename DerivedV,
typename DerivedE,
typename DerivedH,
typename DerivedV2,
typename DerivedF2>
IGL_INLINE void igl::triangle::triangulate(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedE> & E,
const Eigen::MatrixBase<DerivedH> & H,
const std::string flags,
Eigen::PlainObjectBase<DerivedV2> & V2,
Eigen::PlainObjectBase<DerivedF2> & F2)
{
Eigen::VectorXi VM,EM,VM2,EM2;
return triangulate(V,E,H,VM,EM,flags,V2,F2,VM2,EM2);
}
template <
typename DerivedV,
typename DerivedE,
typename DerivedH,
typename DerivedVM,
typename DerivedEM,
typename DerivedV2,
typename DerivedF2,
typename DerivedVM2,
typename DerivedEM2>
IGL_INLINE void igl::triangle::triangulate(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedE> & E,
const Eigen::MatrixBase<DerivedH> & H,
const Eigen::MatrixBase<DerivedVM> & VM,
const Eigen::MatrixBase<DerivedEM> & EM,
const std::string flags,
Eigen::PlainObjectBase<DerivedV2> & V2,
Eigen::PlainObjectBase<DerivedF2> & F2,
Eigen::PlainObjectBase<DerivedVM2> & VM2,
Eigen::PlainObjectBase<DerivedEM2> & EM2)
{
using namespace std;
using namespace Eigen;
assert( (VM.size() == 0 || V.rows() == VM.size()) &&
"Vertex markers must be empty or same size as V");
assert( (EM.size() == 0 || E.rows() == EM.size()) &&
"Segment markers must be empty or same size as E");
assert(V.cols() == 2);
assert(E.size() == 0 || E.cols() == 2);
assert(H.size() == 0 || H.cols() == 2);
// Prepare the flags
string full_flags = flags + "pz" + (EM.size() || VM.size() ? "" : "B");
typedef Map< Matrix<double,Dynamic,Dynamic,RowMajor> > MapXdr;
typedef Map< Matrix<int,Dynamic,Dynamic,RowMajor> > MapXir;
// Prepare the input struct
triangulateio in;
in.numberofpoints = V.rows();
in.pointlist = (double*)calloc(V.size(),sizeof(double));
{
MapXdr inpl(in.pointlist,V.rows(),V.cols());
inpl = V.template cast<double>();
}
in.numberofpointattributes = 0;
in.pointmarkerlist = (int*)calloc(V.size(),sizeof(int)) ;
for(unsigned i=0;i<V.rows();++i) in.pointmarkerlist[i] = VM.size()?VM(i):1;
in.trianglelist = NULL;
in.numberoftriangles = 0;
in.numberofcorners = 0;
in.numberoftriangleattributes = 0;
in.triangleattributelist = NULL;
in.numberofsegments = E.size()?E.rows():0;
in.segmentlist = (int*)calloc(E.size(),sizeof(int));
{
MapXir insl(in.segmentlist,E.rows(),E.cols());
insl = E.template cast<int>();
}
in.segmentmarkerlist = (int*)calloc(E.rows(),sizeof(int));
for (unsigned i=0;i<E.rows();++i) in.segmentmarkerlist[i] = EM.size()?EM(i):1;
in.numberofholes = H.size()?H.rows():0;
in.holelist = (double*)calloc(H.size(),sizeof(double));
{
MapXdr inhl(in.holelist,H.rows(),H.cols());
inhl = H.template cast<double>();
}
in.numberofregions = 0;
// Prepare the output struct
triangulateio out;
out.pointlist = NULL;
out.trianglelist = NULL;
out.segmentlist = NULL;
out.segmentmarkerlist = NULL;
out.pointmarkerlist = NULL;
// Call triangle
::triangulate(const_cast<char*>(full_flags.c_str()), &in, &out, 0);
// Return the mesh
V2 = MapXdr(out.pointlist,out.numberofpoints,2).cast<typename DerivedV2::Scalar>();
F2 = MapXir(out.trianglelist,out.numberoftriangles,3).cast<typename DerivedF2::Scalar>();
if(VM.size())
{
VM2 = MapXir(out.pointmarkerlist,out.numberofpoints,1).cast<typename DerivedVM2::Scalar>();
}
if(EM.size())
{
EM2 = MapXir(out.segmentmarkerlist,out.numberofsegments,1).cast<typename DerivedEM2::Scalar>();
}
// Cleanup in
free(in.pointlist);
free(in.pointmarkerlist);
free(in.segmentlist);
free(in.segmentmarkerlist);
free(in.holelist);
// Cleanup out
free(out.pointlist);
free(out.trianglelist);
free(out.segmentlist);
free(out.segmentmarkerlist);
free(out.pointmarkerlist);
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::triangle::triangulate<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
template void igl::triangle::triangulate<Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<double, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 1, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
template void igl::triangle::triangulate<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
#endif
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