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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 | #include <igl/opengl/glfw/Viewer.h>
#include <igl/triangle/triangulate.h>
// Input polygon
Eigen::MatrixXd V;
Eigen::MatrixXi E;
Eigen::MatrixXd H;
// Triangulated interior
Eigen::MatrixXd V2;
Eigen::MatrixXi F2;
int main(int argc, char *argv[])
{
using namespace Eigen;
using namespace std;
// Create the boundary of a square
V.resize(8,2);
E.resize(8,2);
H.resize(1,2);
// create two squares, one with edge length of 4,
// one with edge length of 2
// both centered at origin
V << -1,-1, 1,-1, 1,1, -1, 1,
-2,-2, 2,-2, 2,2, -2, 2;
// add the edges of the squares
E << 0,1, 1,2, 2,3, 3,0,
4,5, 5,6, 6,7, 7,4;
// specify a point that is inside a closed shape
// where we do not want triangulation to happen
H << 0,0;
// Triangulate the interior
// a0.005 means that the area of each triangle should
// not be greater than 0.005
// q means that no angles will be smaller than 20 degrees
// for a detailed set of commands please refer to:
// https://www.cs.cmu.edu/~quake/triangle.switch.html
igl::triangle::triangulate(V,E,H,"a0.005q",V2,F2);
// Plot the generated mesh
igl::opengl::glfw::Viewer viewer;
viewer.data().set_mesh(V2,F2);
viewer.launch();
}
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