140 lines
4.4 KiB
C++
Executable File
140 lines
4.4 KiB
C++
Executable File
#include <igl/avg_edge_length.h>
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#include <igl/barycenter.h>
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#include <igl/jet.h>
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#include <igl/shapeup.h>
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#include <igl/shapeup_local_projections.h>
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#include <igl/quad_planarity.h>
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#include <igl/readDMAT.h>
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#include <igl/readOFF.h>
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#include <igl/slice.h>
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#include <igl/viewer/Viewer.h>
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#include <vector>
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#include <cstdlib>
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#include "tutorial_shared_path.h"
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// Quad mesh loaded
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Eigen::MatrixXd VQC;
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Eigen::MatrixXi FQC;
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Eigen::MatrixXi E;
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Eigen::MatrixXi FQCtri;
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Eigen::MatrixXd PQC0, PQC1, PQC2, PQC3;
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// Euclidean-regular quad mesh
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Eigen::MatrixXd VQCregular;
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Eigen::MatrixXi FQCtriregular;
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Eigen::MatrixXd PQC0regular, PQC1regular, PQC2regular, PQC3regular;
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igl::ShapeupData su_data;
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// Scale for visualizing the fields
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double global_scale; //TODO: not used
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bool key_down(igl::viewer::Viewer& viewer, unsigned char key, int modifier)
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{
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using namespace std;
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using namespace Eigen;
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// Plot the original quad mesh
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if (key == '1')
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{
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cout<<"before setting mesh 1"<<endl;
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// Draw the triangulated quad mesh
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viewer.data.set_mesh(VQC, FQCtri);
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// Assign a color to each quad that corresponds to its planarity
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VectorXd planarity;
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igl::quad_planarity( VQC, FQC, planarity);
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MatrixXd Ct;
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igl::jet(planarity, 0, 0.01, Ct);
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MatrixXd C(FQCtri.rows(),3);
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C << Ct, Ct;
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viewer.data.set_colors(C);
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// Plot a line for each edge of the quad mesh
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viewer.data.add_edges(PQC0, PQC1, Eigen::RowVector3d(0,0,0));
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viewer.data.add_edges(PQC1, PQC2, Eigen::RowVector3d(0,0,0));
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viewer.data.add_edges(PQC2, PQC3, Eigen::RowVector3d(0,0,0));
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viewer.data.add_edges(PQC3, PQC0, Eigen::RowVector3d(0,0,0));
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}
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// Plot the planarized quad mesh
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if (key == '2')
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{
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// Draw the triangulated quad mesh
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cout<<"before setting mesh 2"<<endl;
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viewer.data.set_mesh(VQCregular, FQCtri);
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// Assign a color to each quad that corresponds to its planarity
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VectorXd planarity;
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igl::quad_planarity( VQCregular, FQC, planarity);
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MatrixXd Ct;
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igl::jet(planarity, 0, 0.01, Ct);
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MatrixXd C(FQCtri.rows(),3);
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C << Ct, Ct;
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viewer.data.set_colors(C);
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// Plot a line for each edge of the quad mesh
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viewer.data.add_edges(PQC0regular, PQC1regular, Eigen::RowVector3d(0,0,0));
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viewer.data.add_edges(PQC1regular, PQC2regular, Eigen::RowVector3d(0,0,0));
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viewer.data.add_edges(PQC2regular, PQC3regular, Eigen::RowVector3d(0,0,0));
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viewer.data.add_edges(PQC3regular, PQC0regular, Eigen::RowVector3d(0,0,0));
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}
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return false;
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}
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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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// Load a quad mesh
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igl::readOFF(TUTORIAL_SHARED_PATH "/halftunnel.off", VQC, FQC);
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// Convert it in a triangle mesh
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FQCtri.resize(2*FQC.rows(), 3);
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FQCtri << FQC.col(0),FQC.col(1),FQC.col(2),
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FQC.col(2),FQC.col(3),FQC.col(0);
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igl::slice( VQC, FQC.col(0).eval(), 1, PQC0);
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igl::slice( VQC, FQC.col(1).eval(), 1, PQC1);
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igl::slice( VQC, FQC.col(2).eval(), 1, PQC2);
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igl::slice( VQC, FQC.col(3).eval(), 1, PQC3);
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// Create a planar version with ShapeUp
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//igl::planarize_quad_mesh(VQC, FQC, 100, 0.005, VQCregular);
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E.resize(FQC.size(),2);
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E.col(0)<<FQC.col(0),FQC.col(1),FQC.col(2),FQC.col(3);
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E.col(1)<<FQC.col(1),FQC.col(2),FQC.col(3),FQC.col(0);
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VectorXi b;
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VectorXd w(FQC.rows());
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MatrixXd bc;
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VectorXi array_of_fours=VectorXi::Constant(FQC.rows(),4);
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cout<<"before pre-computation"<<endl;
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std::function<bool(const MatrixXd&, const VectorXi&, const MatrixXi&, MatrixXd&)> localFunction=std::function<bool(const MatrixXd&, const VectorXi&, const MatrixXi&, MatrixXd&)>(igl::shapeup_identity_projection);
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//shapeup_precomputation(VQC, array_of_fours,FQC,E,b,w, localFunction,su_data);
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cout<<"after pre-computation"<<endl;
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shapeup_solve(bc,VQC,su_data,VQCregular);
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cout<<"after computation"<<endl;
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// Convert the planarized mesh to triangles
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igl::slice( VQCregular, FQC.col(0).eval(), 1, PQC0regular);
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igl::slice( VQCregular, FQC.col(1).eval(), 1, PQC1regular);
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igl::slice( VQCregular, FQC.col(2).eval(), 1, PQC2regular);
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igl::slice( VQCregular, FQC.col(3).eval(), 1, PQC3regular);
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// Launch the viewer
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igl::viewer::Viewer viewer;
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key_down(viewer,'1',0);
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viewer.core.invert_normals = true;
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viewer.core.show_lines = false;
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viewer.callback_key_down = &key_down;
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viewer.launch();
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}
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