C++ (Cpp) Viewer::core Examples

Example #1

File: main.cpp Project: metorm/libigl

bool key_down(igl::opengl::glfw::Viewer &viewer, unsigned char key, int mods)
{
  switch(key)
  {
    case ' ':
      viewer.core().is_animating = !viewer.core().is_animating;
      return true;
    case 'D':
    case 'd':
      deformation_field = !deformation_field;
      return true;
  }
  return false;
}

Example #2

File: main.cpp Project: metorm/libigl

bool pre_draw(igl::opengl::glfw::Viewer & viewer)
{
  using namespace Eigen;
  // Determine boundary conditions
  if(viewer.core().is_animating)
  {
    bc_frac += bc_dir;
    bc_dir *= (bc_frac>=1.0 || bc_frac<=0.0?-1.0:1.0);
  }

  const MatrixXd U_bc_anim = V_bc+bc_frac*(U_bc-V_bc);
  if(deformation_field)
  {
    MatrixXd D;
    MatrixXd D_bc = U_bc_anim - V_bc;
    igl::harmonic(V,F,b,D_bc,2,D);
    U = V+D;
  }else
  {
    igl::harmonic(V,F,b,U_bc_anim,2.,U);
  }
  viewer.data().set_vertices(U);
  viewer.data().compute_normals();
  return false;
}