CGAL 5.6 - Surface Mesh Topology
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Surface_mesh_topology/path_homotopy_with_symbols.cpp
#include <CGAL/Polygonal_schema.h>
#include <CGAL/Path_on_surface.h>
#include <CGAL/Curves_on_surface_topology.h>
#include <iostream>
#include <cstdlib>
int main()
{
PS ps;
ps.add_facet("a b -a -b c d -c -d");
Path_on_surface<PS> p2(ps); p2.push_back_by_label("b c a -c -b");
bool res1=cst.are_freely_homotopic(p1, p2);
std::cout<<"Paths p1 and p2 "<<(res1?"ARE":"ARE NOT")
<<" freely homotopic."<<std::endl;
bool res2=cst.are_base_point_homotopic(p1, p2);
std::cout<<"Paths p1 and p2 "<<(res2?"ARE":"ARE NOT")
<<" base point homotopic."<<std::endl;
return EXIT_SUCCESS;
}
The class Curves_on_surface_topology provides methods to compute shortest non contractible cycles and...
Definition: Curves_on_surface_topology.h:13
bool are_freely_homotopic(const Path_on_surface< Mesh > &p1, const Path_on_surface< Mesh > &p2) const
returns true if the closed paths p1 and p2 are freely homotopic.
The class Path_on_surface represents a walk in a mesh which is either a model of CombinatorialMap,...
Definition: Path_on_surface.h:13
void push_back_by_label(const std::string &s)
adds successively all darts/halfedges in s (a sequence of labels separated by spaces) at the end of t...
The class Polygonal_schema_with_combinatorial_map is a model of PolygonalSchema using Combinatorial_m...
Definition: Polygonal_schema.h:15
Definition: Curves_on_surface_topology.h:3