Merge commit 'a3c17ec2eb057e3a8f779d448cc0cf9bd0e684ac'

small changes to make it compile with gcc 4.7
2014-06-30 00:56:53 +02:00
parent a24fe2d0bb a3c17ec2eb
commit 5c81bd50ff
41 changed files with 356231 additions and 59 deletions
@@ -0,0 +1,112 @@
+#include <igl/readOBJ.h>
+#include <igl/readDMAT.h>
+#include <igl/viewer/Viewer.h>
+#include <igl/barycenter.h>
+#include <igl/avg_edge_length.h>
+#include <vector>
+#include <igl/n_polyvector.h>
+#include <stdlib.h>
+
+// Input mesh
+Eigen::MatrixXd V;
+Eigen::MatrixXi F;
+
+// Face barycenters
+Eigen::MatrixXd B;
+
+// Scale for visualizing the fields
+double global_scale;
+
+// Input constraints
+Eigen::VectorXi isConstrained;
+std::vector<Eigen::MatrixXd> constraints;
+
+
+
+
+bool key_down(igl::Viewer& viewer, unsigned char key, int modifier)
+{
+  using namespace std;
+  using namespace Eigen;
+
+  if (key <'0' || key >'4')
+    return false;
+
+  viewer.clear();
+  viewer.set_mesh(V, F);
+  viewer.core.show_lines = false;
+  viewer.core.show_texture = false;
+
+  int num = key  - '0';
+
+  if (num == 0)
+    return false;
+  // Interpolate
+  cerr<<"Interpolating for n = "<<num<<"... ";
+  // Interpolated polyVector field
+  Eigen::MatrixXd pvf;
+  igl::n_polyvector(V, F, isConstrained, constraints[num-1], pvf);
+  cerr<<"done." <<endl;
+
+  // Highlight in red the constrained faces
+  MatrixXd C = MatrixXd::Constant(F.rows(),3,1);
+  for (unsigned i=0; i<F.rows();++i)
+    if (isConstrained[i])
+      C.row(i) << 1, 0, 0;
+  viewer.set_colors(C);
+
+  for (int n =0; n<num; ++n)
+  {
+    // Frame field constraints
+    MatrixXd F_t = MatrixXd::Zero(F.rows(),3);
+    for (unsigned i=0; i<F.rows();++i)
+      if (isConstrained[i])
+        F_t.row(i) = constraints[num-1].block(i,n*3,1,3);
+    const Eigen::MatrixXd &pvf_t = pvf.block(0,n*3,F.rows(),3);
+    viewer.add_edges (B - global_scale*F_t, B + global_scale*F_t , Eigen::RowVector3d(0,0,1));
+    viewer.add_edges (B - global_scale*pvf_t, B + global_scale*pvf_t , Eigen::RowVector3d(0,1,0));
+  }
+
+
+  return false;
+}
+
+int main(int argc, char *argv[])
+{
+  using namespace Eigen;
+  using namespace std;
+  // Load a mesh in OBJ format
+  igl::readOBJ("../shared/snail.obj", V, F);
+
+  // Compute face barycenters
+  igl::barycenter(V, F, B);
+
+  // Compute scale for visualizing fields
+  global_scale =  .2*igl::avg_edge_length(V, F);
+
+  // Allocate constraints and polyvector field
+  constraints.resize(4);
+
+  // Load constraints
+  MatrixXd temp;
+  for (int n =0; n<=3; ++n)
+  {
+    char cfile[1024]; sprintf(cfile, "../shared/snail%d.dmat",n+1);
+
+    igl::readDMAT(cfile,temp);
+    if (n == 0)
+      isConstrained = temp.block(0,0,temp.rows(),1).cast<int>();
+
+    constraints[n] = temp.block(0,1,temp.rows(),temp.cols()-1);
+  }
+
+
+  igl::Viewer viewer;
+
+  // Plot the original mesh with a texture parametrization
+  key_down(viewer,'0',0);
+
+  // Launch the viewer
+  viewer.callback_key_down = &key_down;
+  viewer.launch();
+}