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main.cpp
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main.cpp
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#include <igl/readOFF.h>
#include <igl/readSTL.h>
#include <igl/writeSTL.h>
//#undef IGL_STATIC_LIBRARY
#include <igl/copyleft/cgal/mesh_boolean.h>
#include <igl/opengl/glfw/Viewer.h>
#include <Eigen/Core>
#include <iostream>
#include "tutorial_shared_path.h"
//#include <igl/barycenter.h>
//#include <igl/boundary_facets.h>
//#include <igl/copyleft/tetgen/tetrahedralize.h>
//#include <igl/copyleft/tetgen/cdt.h>
//#include <igl/winding_number.h>
//#include <igl/unique_simplices.h>
//#include <igl/remove_unreferenced.h>
//#include <igl/copyleft/cgal/remesh_self_intersections.h>
//#include <igl/redrum.h>
#include <Windows.h>
#define DBOUT( s ) \
{ \
std::ostringstream os_; \
os_ << s; \
OutputDebugString( os_.str().c_str() ); \
}
Eigen::MatrixXd VA, VB, VC;
Eigen::MatrixXd NA, NB, NC;
Eigen::VectorXi J, I;
Eigen::MatrixXi FA, FB, FC;
igl::MeshBooleanType boolean_type(
igl::MESH_BOOLEAN_TYPE_UNION);
void update(igl::opengl::glfw::Viewer &viewer)
{
Eigen::MatrixXd C(FC.rows(), 3);
for (size_t f = 0; f < C.rows(); f++)
{
if (J(f) < FA.rows())
{
C.row(f) = Eigen::RowVector3d(1, 0, 0);
}
else
{
C.row(f) = Eigen::RowVector3d(0, 1, 0);
}
}
viewer.data().clear();
viewer.data().set_mesh(VC, FC);
viewer.data().set_colors(C);
}
extern "C"
{
__declspec(dllexport) void DoBooleanOperation(double* pVA, int sizeVA, int* pFA, int sizeFA,
double* pVB, int sizeVB, int* pFB, int sizeFB,
int opperation,
double** ppVC, int* pSizeVC, int** ppFC, int* pSizeFC)
{
using namespace Eigen;
igl::MeshBooleanType booleanType(igl::MESH_BOOLEAN_TYPE_UNION);
if (opperation == 1)
{
booleanType = igl::MESH_BOOLEAN_TYPE_MINUS;
}
else if (opperation == 2)
{
booleanType = igl::MESH_BOOLEAN_TYPE_INTERSECT;
}
// make local data to hold our arrays
Eigen::MatrixXd VA, VB, VC;
Eigen::MatrixXi FA, FB, FC;
VA = Map<Matrix<double, Dynamic, Dynamic, RowMajor> >(pVA, sizeVA / 3, 3);
FA = Map<Matrix<int, Dynamic, Dynamic, RowMajor> >(pFA, sizeFA / 3, 3);
VB = Map<Matrix<double, Dynamic, Dynamic, RowMajor> >(pVB, sizeVB / 3, 3);
FB = Map<Matrix<int, Dynamic, Dynamic, RowMajor> >(pFB, sizeFB / 3, 3);
//DBOUT("The value of x is " << VA);
igl::copyleft::cgal::mesh_boolean(VA, FA, VB, FB, booleanType, VC, FC, J);
//igl::writeSTL("c:\\Temp\\test.stl", VC, FC, true);
int count = VC.rows() * VC.cols();
*pSizeVC = count;
*ppVC = new double[count];
int VCcols = VC.cols();
for (int row = 0; row < VC.rows(); row++)
{
for (int col = 0; col < VCcols; col++)
{
ppVC[0][row*VCcols + col] = VC(row, col);
}
}
count = FC.rows() * FC.cols();
*pSizeFC = count;
*ppFC = new int[count];
int FCcols = FC.cols();
for (int row = 0; row < FC.rows(); row++)
{
for (int col = 0; col < FCcols; col++)
{
ppFC[0][row*FCcols + col] = FC(row, col);
}
}
}
__declspec(dllexport) void DeleteDouble(double** data)
{
delete(*data);
}
__declspec(dllexport) void DeleteInt(int** data)
{
delete(*data);
}
__declspec(dllexport) int add(int a, int b)
{
return a + b;
}
__declspec(dllexport) int subtract(int a, int b)
{
return a - b;
}
}
//bool clean(
// const Eigen::MatrixXd & V,
// const Eigen::MatrixXi & F,
// Eigen::MatrixXd & CV,
// Eigen::MatrixXi & CF,
// Eigen::VectorXi & IM)
//{
// using namespace igl;
// using namespace igl::copyleft::tetgen;
// using namespace igl::copyleft::cgal;
// using namespace Eigen;
// using namespace std;
// //writeOBJ("VF.obj",V,F);
// const auto & validate_IM = [](
// const Eigen::MatrixXd & V,
// const Eigen::MatrixXd & CV,
// const Eigen::VectorXi & IM)
// {
// assert(IM.size() >= CV.rows());
// for (int i = 0; i < CV.rows(); i++)
// {
// if (IM(i) < V.rows() && IM(i) >= 0)
// {
// double diff = (V.row(IM(i)) - CV.row(i)).norm();
// if (diff > 1e-6)
// {
// cout << i << ": " << IM(i) << " " << diff << endl;
// }
// }
// }
// };
// {
// MatrixXi _1;
// VectorXi _2;
// cout << "clean: remesh_self_intersections" << endl;
// remesh_self_intersections(V, F, { false,false,false }, CV, CF, _1, _2, IM);
// for_each(CF.data(), CF.data() + CF.size(), [&IM](int & a) {a = IM(a); });
// //validate_IM(V,CV,IM);
// cout << "clean: remove_unreferenced" << endl;
// {
// MatrixXi oldCF = CF;
// unique_simplices(oldCF, CF);
// }
// MatrixXd oldCV = CV;
// MatrixXi oldCF = CF;
// VectorXi nIM;
// remove_unreferenced(oldCV, oldCF, CV, CF, nIM);
// // reindex nIM through IM
// for_each(IM.data(), IM.data() + IM.size(), [&nIM](int & a) {a = a >= 0 ? nIM(a) : a; });
// //validate_IM(V,CV,IM);
// }
// MatrixXd TV;
// MatrixXi TT;
// {
// MatrixXi _1;
// // c convex hull
// // Y no boundary steiners
// // p polygon input
// // T1e-16 sometimes helps tetgen
// cout << "clean: tetrahedralize" << endl;
// writeOBJ("CVCF.obj", CV, CF);
// CDTParam params;
// params.flags = "CYT1e-16";
// params.use_bounding_box = true;
// if (cdt(CV, CF, params, TV, TT, _1) != 0)
// {
// cout << REDRUM("CDT failed.") << endl;
// return false;
// }
// //writeMESH("TVTT.mesh",TV,TT,MatrixXi());
// }
// {
// MatrixXd BC;
// barycenter(TV, TT, BC);
// VectorXd W;
// cout << "clean: winding_number" << endl;
// winding_number(V, F, BC, W);
// W = W.array().abs();
// const double thresh = 0.5;
// const int count = (W.array() > thresh).cast<int>().sum();
// MatrixXi CT(count, TT.cols());
// int c = 0;
// for (int t = 0; t < TT.rows(); t++)
// {
// if (W(t) > thresh)
// {
// CT.row(c++) = TT.row(t);
// }
// }
// assert(c == count);
// boundary_facets(CT, CF);
// //writeMESH("CVCTCF.mesh",TV,CT,CF);
// cout << "clean: remove_unreferenced" << endl;
// // Force all original vertices to be referenced
// MatrixXi FF = F;
// for_each(FF.data(), FF.data() + FF.size(), [&IM](int & a) {a = IM(a); });
// int ncf = CF.rows();
// MatrixXi ref(ncf + FF.rows(), 3);
// ref << CF, FF;
// VectorXi nIM;
// remove_unreferenced(TV, ref, CV, CF, nIM);
// // Only keep boundary faces
// CF.conservativeResize(ncf, 3);
// cout << "clean: IM.minCoeff(): " << IM.minCoeff() << endl;
// // reindex nIM through IM
// for_each(IM.data(), IM.data() + IM.size(), [&nIM](int & a) {a = a >= 0 ? nIM(a) : a; });
// cout << "clean: IM.minCoeff(): " << IM.minCoeff() << endl;
// //validate_IM(V,CV,IM);
// }
// return true;
//}
int main(int argc, char *argv[])
{
using namespace Eigen;
using namespace std;
double t1[] = { 90, 115, 10, 90, 135, 10, 90, 115, 0, 90, 115, 0, 90, 135, 10, 90, 135, 0, 90, 115, 10, 110, 115, 10, 110, 135, 10, 90, 135, 10, 90, 115, 10, 110, 135, 10, 90, 115, 0, 110, 115, 0, 110, 115, 10, 90, 115, 10, 90, 115, 0, 110, 115, 10, 90, 135, 0, 110, 135, 0, 90, 115, 0, 90, 115, 0, 110, 135, 0, 110, 115, 0, 90, 135, 10, 110, 135, 10, 90, 135, 0, 90, 135, 0, 110, 135, 10, 110, 135, 0, 110, 115, 0, 110, 135, 0, 110, 135, 10, 110, 115, 10, 110, 115, 0, 110, 135, 10 };
int t2[] = { 0, 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 };
double t3[] = { 100, 102, 10, 100, 122, 10, 100, 102, 0, 100, 102, 0, 100, 122, 10, 100, 122, 0, 100, 102, 10, 120, 102, 10, 120, 122, 10, 100, 122, 10, 100, 102, 10, 120, 122, 10, 100, 102, 0, 120, 102, 0, 120, 102, 10, 100, 102, 10, 100, 102, 0, 120, 102, 10, 100, 122, 0, 120, 122, 0, 100, 102, 0, 100, 102, 0, 120, 122, 0, 120, 102, 0, 100, 122, 10, 120, 122, 10, 100, 122, 0, 100, 122, 0, 120, 122, 10, 120, 122, 0, 120, 102, 0, 120, 122, 0, 120, 122, 10, 120, 102, 10, 120, 102, 0, 120, 122, 10 };
int t4[] = { 0, 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 };
double* pVC = 0;
int vc = 0;
int* pFC = 0;
int fc = 0;
DoBooleanOperation(t1, 108, t2, 36, t3, 108, t4, 36, 1, &pVC, &vc, &pFC, &fc);
if (argc != 5)
{
cout <<
"In STL A" << endl <<
"In STL B" << endl <<
"Out STL" << endl <<
"Operation [+,-,&] (union, subtract, intersect)" << endl;
return -1;
}
igl::readSTL(argv[1], VA, FA, NA);
igl::readSTL(argv[2], VB, FB, NB);
igl::MeshBooleanType booleanType(igl::MESH_BOOLEAN_TYPE_UNION);
if (strcmp(argv[4], "-") == 0)
{
booleanType = igl::MESH_BOOLEAN_TYPE_MINUS;
}
else if (strcmp(argv[4], "&") == 0)
{
booleanType = igl::MESH_BOOLEAN_TYPE_INTERSECT;
}
igl::copyleft::cgal::mesh_boolean(VA, FA, VB, FB, booleanType, VC, FC, J);
igl::writeSTL(argv[3], VC, FC, true);
if(false)
{
// Plot the mesh with pseudocolors
igl::opengl::glfw::Viewer viewer;
// Initialize
update(viewer);
viewer.data().show_lines = true;
viewer.core.camera_dnear = 3.9;
viewer.launch();
}
}