diff options
Diffstat (limited to 'src/Persistent_cohomology/example/weighted_alpha_complex_3d_persistence.cpp')
-rw-r--r-- | src/Persistent_cohomology/example/weighted_alpha_complex_3d_persistence.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/Persistent_cohomology/example/weighted_alpha_complex_3d_persistence.cpp b/src/Persistent_cohomology/example/weighted_alpha_complex_3d_persistence.cpp index 4a2b10f3..a4ecf9da 100644 --- a/src/Persistent_cohomology/example/weighted_alpha_complex_3d_persistence.cpp +++ b/src/Persistent_cohomology/example/weighted_alpha_complex_3d_persistence.cpp @@ -81,8 +81,13 @@ using Persistent_cohomology = Gudhi::persistent_cohomology::Persistent_cohomolog ST, Gudhi::persistent_cohomology::Field_Zp >; void usage(char * const progName) { - std::cerr << "Usage: " << progName << - " path_to_file_graph path_to_weight_file coeff_field_characteristic[integer > 0] min_persistence[float >= -1.0]\n"; + std::cerr << "Usage:\n" << progName << " path_to_OFF_file path_to_weight_file coeff_field_characteristic[integer " << + "> 0] min_persistence[float >= -1.0]\n"; + std::cerr << " path_to_OFF_file is the path to your points cloud in OFF format.\n"; + std::cerr << " path_to_weight_file is the path to the weights of your points cloud (one value per line.)\n"; + std::cerr << " Weights values are explained on CGAL documentation:\n"; + std::cerr << " https://doc.cgal.org/latest/Alpha_shapes_3/index.html#title0\n"; + std::cerr << " https://doc.cgal.org/latest/Triangulation_3/index.html#Triangulation3secclassRegulartriangulation\n"; exit(-1); } @@ -115,6 +120,7 @@ int main(int argc, char * const argv[]) { if (weights_ifstr.good()) { double weight = 0.0; std::size_t index = 0; + wp.reserve(lp.size()); // Attempt read the weight in a double format, return false if it fails while ((weights_ifstr >> weight) && (index < lp.size())) { wp.push_back(Weighted_point_3(lp[index], weight)); @@ -130,7 +136,7 @@ int main(int argc, char * const argv[]) { } // alpha shape construction from points. CGAL has a strange behavior in REGULARIZED mode. - Alpha_shape_3 as(lp.begin(), lp.end(), 0, Alpha_shape_3::GENERAL); + Alpha_shape_3 as(wp.begin(), wp.end(), 0, Alpha_shape_3::GENERAL); #ifdef DEBUG_TRACES std::cout << "Alpha shape computed in GENERAL mode" << std::endl; #endif // DEBUG_TRACES @@ -222,7 +228,6 @@ int main(int argc, char * const argv[]) { else std::cout << "This shall not happen" << std::endl; } - simplex_tree.set_filtration(filtration_max); simplex_tree.set_dimension(dim_max); #ifdef DEBUG_TRACES @@ -236,7 +241,6 @@ int main(int argc, char * const argv[]) { std::cout << " Number of vertices = " << simplex_tree.num_vertices() << " "; std::cout << " Number of simplices = " << simplex_tree.num_simplices() << std::endl << std::endl; std::cout << " Dimension = " << simplex_tree.dimension() << " "; - std::cout << " filtration = " << simplex_tree.filtration() << std::endl << std::endl; #endif // DEBUG_TRACES #ifdef DEBUG_TRACES |