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95 lines
2.3 KiB
95 lines
2.3 KiB
#include <igl/readOFF.h>
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//#undef IGL_STATIC_LIBRARY
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#include <igl/copyleft/cgal/mesh_boolean.h>
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#include <igl/opengl/glfw/Viewer.h>
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#include <Eigen/Core>
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#include <iostream>
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Eigen::MatrixXd VA,VB,VC;
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Eigen::VectorXi J,I;
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Eigen::MatrixXi FA,FB,FC;
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igl::MeshBooleanType boolean_type(
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igl::MESH_BOOLEAN_TYPE_UNION);
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const char * MESH_BOOLEAN_TYPE_NAMES[] =
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{
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"Union",
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"Intersect",
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"Minus",
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"XOR",
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"Resolve",
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};
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void update(igl::opengl::glfw::Viewer &viewer)
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{
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igl::copyleft::cgal::mesh_boolean(VA,FA,VB,FB,boolean_type,VC,FC,J);
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Eigen::MatrixXd C(FC.rows(),3);
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for(size_t f = 0;f<C.rows();f++)
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{
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if(J(f)<FA.rows())
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{
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C.row(f) = Eigen::RowVector3d(1,0,0);
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}else
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{
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C.row(f) = Eigen::RowVector3d(0,1,0);
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}
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}
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viewer.data().clear();
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viewer.data().set_mesh(VC,FC);
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viewer.data().set_colors(C);
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std::cout<<"A "<<MESH_BOOLEAN_TYPE_NAMES[boolean_type]<<" B."<<std::endl;
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}
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bool key_down(igl::opengl::glfw::Viewer &viewer, unsigned char key, int mods)
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{
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switch(key)
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{
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default:
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return false;
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case '.':
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boolean_type =
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static_cast<igl::MeshBooleanType>(
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(boolean_type+1)% igl::NUM_MESH_BOOLEAN_TYPES);
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break;
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case ',':
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boolean_type =
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static_cast<igl::MeshBooleanType>(
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(boolean_type+igl::NUM_MESH_BOOLEAN_TYPES-1)%
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igl::NUM_MESH_BOOLEAN_TYPES);
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break;
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case '[':
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viewer.core().camera_dnear -= 0.1;
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return true;
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case ']':
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viewer.core().camera_dnear += 0.1;
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return true;
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}
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update(viewer);
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return true;
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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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igl::readOFF(TUTORIAL_SHARED_PATH "/cheburashka.off",VA,FA);
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igl::readOFF(TUTORIAL_SHARED_PATH "/decimated-knight.off",VB,FB);
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// Plot the mesh with pseudocolors
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igl::opengl::glfw::Viewer viewer;
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// Initialize
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update(viewer);
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viewer.data().show_lines = true;
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viewer.callback_key_down = &key_down;
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viewer.core().camera_dnear = 3.9;
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cout<<
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"Press '.' to switch to next boolean operation type."<<endl<<
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"Press ',' to switch to previous boolean operation type."<<endl<<
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"Press ']' to push near cutting plane away from camera."<<endl<<
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"Press '[' to pull near cutting plane closer to camera."<<endl<<
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"Hint: investigate _inside_ the model to see orientation changes."<<endl;
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viewer.launch();
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}
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