File size: 2,130 Bytes
5b89cb9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | #include <igl/arap.h>
#include <igl/boundary_loop.h>
#include <igl/harmonic.h>
#include <igl/map_vertices_to_circle.h>
#include <igl/readOFF.h>
#include <igl/opengl/glfw/Viewer.h>
Eigen::MatrixXd V;
Eigen::MatrixXi F;
Eigen::MatrixXd V_uv;
Eigen::MatrixXd initial_guess;
bool show_uv = false;
bool key_down(igl::opengl::glfw::Viewer& viewer, unsigned char key, int modifier)
{
if (key == '1')
show_uv = false;
else if (key == '2')
show_uv = true;
if (key == 'q')
V_uv = initial_guess;
if (show_uv)
{
viewer.data().set_mesh(V_uv,F);
viewer.core().align_camera_center(V_uv,F);
}
else
{
viewer.data().set_mesh(V,F);
viewer.core().align_camera_center(V,F);
}
viewer.data().compute_normals();
return false;
}
int main(int argc, char *argv[])
{
using namespace std;
// Load a mesh in OFF format
igl::readOFF(TUTORIAL_SHARED_PATH "/camelhead.off", V, F);
// Compute the initial solution for ARAP (harmonic parametrization)
Eigen::VectorXi bnd;
igl::boundary_loop(F,bnd);
Eigen::MatrixXd bnd_uv;
igl::map_vertices_to_circle(V,bnd,bnd_uv);
igl::harmonic(V,F,bnd,bnd_uv,1,initial_guess);
// Add dynamic regularization to avoid to specify boundary conditions
igl::ARAPData arap_data;
arap_data.with_dynamics = true;
Eigen::VectorXi b = Eigen::VectorXi::Zero(0);
Eigen::MatrixXd bc = Eigen::MatrixXd::Zero(0,0);
// Initialize ARAP
arap_data.max_iter = 100;
// 2 means that we're going to *solve* in 2d
arap_precomputation(V,F,2,b,arap_data);
// Solve arap using the harmonic map as initial guess
V_uv = initial_guess;
arap_solve(bc,arap_data,V_uv);
// Scale UV to make the texture more clear
V_uv *= 20;
// Plot the mesh
igl::opengl::glfw::Viewer viewer;
viewer.data().set_mesh(V, F);
viewer.data().set_uv(V_uv);
viewer.callback_key_down = &key_down;
// Disable wireframe
viewer.data().show_lines = false;
// Draw checkerboard texture
viewer.data().show_texture = true;
// Launch the viewer
viewer.launch();
}
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