You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.6 KiB
64 lines
1.6 KiB
#include <igl/boundary_loop.h>
|
|
#include <igl/harmonic.h>
|
|
#include <igl/map_vertices_to_circle.h>
|
|
#include <igl/read_triangle_mesh.h>
|
|
#include <igl/opengl/glfw/Viewer.h>
|
|
|
|
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
Eigen::MatrixXd V, V_uv;
|
|
Eigen::MatrixXi F;
|
|
// Load a mesh in OFF format
|
|
igl::read_triangle_mesh(TUTORIAL_SHARED_PATH "/camelhead.off", V, F);
|
|
|
|
// Find the open boundary
|
|
Eigen::VectorXi bnd;
|
|
igl::boundary_loop(F,bnd);
|
|
|
|
// Map the boundary to a circle, preserving edge proportions
|
|
Eigen::MatrixXd bnd_uv;
|
|
igl::map_vertices_to_circle(V,bnd,bnd_uv);
|
|
|
|
// Harmonic parametrization for the internal vertices
|
|
igl::harmonic(V,F,bnd,bnd_uv,1,V_uv);
|
|
|
|
// Scale UV to make the texture more clear
|
|
V_uv *= 5;
|
|
|
|
// Plot the mesh
|
|
igl::opengl::glfw::Viewer viewer;
|
|
viewer.data().set_mesh(V, F);
|
|
viewer.data().set_uv(V_uv);
|
|
// Attach callback to allow toggling between 3D and 2D view
|
|
viewer.callback_key_pressed =
|
|
[&V,&V_uv,&F](igl::opengl::glfw::Viewer& viewer, unsigned int key, int /*mod*/)
|
|
{
|
|
if(key == '3' || key == '2')
|
|
{
|
|
// Plot the 3D mesh or 2D UV coordinates
|
|
viewer.data().set_vertices(key=='3'?V:V_uv);
|
|
viewer.data().compute_normals();
|
|
viewer.core().align_camera_center(key=='3'?V:V_uv,F);
|
|
// key press was used
|
|
return true;
|
|
}
|
|
// key press not used
|
|
return false;
|
|
};
|
|
|
|
// Disable wireframe
|
|
viewer.data().show_lines = false;
|
|
|
|
// Draw default checkerboard texture
|
|
viewer.data().show_texture = true;
|
|
|
|
std::cout<<R"(
|
|
3 Show 3D model
|
|
2 Show 2D parametrization
|
|
)";
|
|
|
|
// Launch the viewer
|
|
viewer.launch();
|
|
}
|
|
|