heat_geodesic

Author: Teseo Schneider

src/heat_geodesic.cpp

@@ -0,0 +1,56 @@
+#include <common.h>
+#include <npe.h>
+#include <typedefs.h>
+#include <igl/heat_geodesics.h>
+
+const char *ds_heat_geodesic = R"igl_Qu8mg5v7xxx(
+Compute fast approximate geodesic distances using precomputed data from a set of selected source vertices (gamma)
+
+Parameters
+----------
+V  #V by dim list of mesh vertex positions
+F  #F by 3 list of mesh face indices into V
+t  "heat" parameter (smaller --> more accurate, less stable)
+gamma  #gamma list of indices into V of source vertices
+
+Returns
+-------
+D  #V list of distances to gamma
+
+See also
+--------
+
+
+Notes
+-----
+
+Examples
+--------
+
+)igl_Qu8mg5v7xxx";
+
+npe_function(heat_geodesic)
+npe_doc(ds_heat_geodesic)
+npe_arg(v, dense_float, dense_double)
+npe_arg(f, dense_int, dense_long, dense_longlong)
+npe_arg(t, double)
+npe_arg(gamma, npe_matches(f))
+
+npe_begin_code()
+  assert_valid_3d_tri_mesh(v, f);
+
+  EigenDenseLike<npe_Matrix_v> v_copy = v;
+  EigenDenseLike<npe_Matrix_f> f_copy = f;
+  EigenDenseLike<npe_Matrix_f> gamma_copy = gamma;
+
+  Eigen::Matrix<npe_Scalar_v, Eigen::Dynamic, 1> d_copy;
+  igl::HeatGeodesicsData<npe_Scalar_v> data;
+  igl::heat_geodesics_precompute(v_copy, f_copy, npe_Scalar_v(t), data);
+  igl::heat_geodesics_solve(data, gamma_copy, d_copy);
+  EigenDenseLike<npe_Matrix_v> d = d_copy;
+
+  return npe::move(d);
+
+npe_end_code()
+
+