37 lines
931 B
C++
37 lines
931 B
C++
#include <igl/gaussian_curvature.h>
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#include <igl/massmatrix.h>
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#include <igl/invert_diag.h>
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#include <igl/readOFF.h>
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#include <igl/opengl/glfw/Viewer.h>
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#include <igl/jet.h>
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#include "tutorial_shared_path.h"
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int main(int argc, char *argv[])
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{
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using namespace Eigen;
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using namespace std;
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MatrixXd V;
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MatrixXi F;
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igl::readOFF(TUTORIAL_SHARED_PATH "/bumpy.off",V,F);
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VectorXd K;
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// Compute integral of Gaussian curvature
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igl::gaussian_curvature(V,F,K);
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// Compute mass matrix
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SparseMatrix<double> M,Minv;
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igl::massmatrix(V,F,igl::MASSMATRIX_TYPE_DEFAULT,M);
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igl::invert_diag(M,Minv);
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// Divide by area to get integral average
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K = (Minv*K).eval();
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// Compute pseudocolor
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MatrixXd C;
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igl::jet(K,true,C);
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// Plot the mesh with pseudocolors
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igl::opengl::glfw::Viewer viewer;
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viewer.data().set_mesh(V, F);
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viewer.data().set_colors(C);
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viewer.launch();
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}
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