\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - Linear Cell Complex

All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Groups Pages
Linear_cell_complex/linear_cell_complex_3_with_colored_vertices.cpp
#include <CGAL/Linear_cell_complex.h>
#include <CGAL/Linear_cell_complex_operations.h>
#include <iostream>
#include <algorithm>
struct Average_functor
{
template<class CellAttribute>
void operator()(CellAttribute& ca1, CellAttribute& ca2)
{ ca1.info()=(ca1.info()+ ca2.info())/2; }
};
struct Myitem
{
template<class Refs>
struct Dart_wrapper
{
typedef CGAL::Dart<3, Refs > Dart;
typedef CGAL::Cell_attribute_with_point< Refs, int, CGAL::Tag_true,
Average_functor >
Vertex_attribute;
typedef CGAL::cpp11::tuple<Vertex_attribute> Attributes;
};
};
typedef CGAL::Linear_cell_complex_traits
<3, CGAL::Exact_predicates_inexact_constructions_kernel> Traits;
typedef CGAL::Linear_cell_complex<3,3,Traits,Myitem> LCC_3;
typedef LCC_3::Dart_handle Dart_handle;
typedef LCC_3::Point Point;
typedef LCC_3::FT FT;
Dart_handle make_iso_cuboid(LCC_3& lcc, const Point& basepoint, FT lg)
{
return lcc.make_hexahedron(basepoint,
Traits::Construct_translated_point()
(basepoint,Traits::Vector(lg,0,0)),
Traits::Construct_translated_point()
(basepoint,Traits::Vector(lg,lg,0)),
Traits::Construct_translated_point()
(basepoint,Traits::Vector(0,lg,0)),
Traits::Construct_translated_point()
(basepoint,Traits::Vector(0,lg,lg)),
Traits::Construct_translated_point()
(basepoint,Traits::Vector(0,0,lg)),
Traits::Construct_translated_point()
(basepoint,Traits::Vector(lg,0,lg)),
Traits::Construct_translated_point()
(basepoint,Traits::Vector(lg,lg,lg)));
}
int main()
{
LCC_3 lcc;
// Create two iso_cuboids.
Dart_handle d1 = make_iso_cuboid(lcc, Point(-2, 0, 0), 1);
Dart_handle d2 = make_iso_cuboid(lcc, Point(0, 0, 0), 1);
// Set the "color" of all vertices of the first cube to 1.
for (LCC_3::One_dart_per_incident_cell_range<0, 3>::iterator
it=lcc.one_dart_per_incident_cell<0,3>(d1).begin(),
itend=lcc.one_dart_per_incident_cell<0,3>(d1).end(); it!=itend; ++it)
{ lcc.info<0>(it)=1; }
// Set the "color" of all vertices of the second cube to 19.
for (LCC_3::One_dart_per_incident_cell_range<0, 3>::iterator it=
lcc.one_dart_per_incident_cell<0,3>(d2).begin(),
itend=lcc.one_dart_per_incident_cell<0,3>(d2).end(); it!=itend; ++it)
{ lcc.info<0>(it)=19; }
// 3-Sew the two cubes along one facet.
lcc.sew<3>(lcc.beta(d1, 1, 1, 2), lcc.beta(d2, 2));
// Barycentric triangulation of the facet between the two cubes.
Dart_handle d3=lcc.insert_barycenter_in_cell<2>(lcc.beta(d2, 2));
// Set the color of the new vertex to 5.
lcc.info<0>(d3)=5;
// Display all the vertices of the map.
for (LCC_3::Vertex_attribute_range::iterator
it=lcc.vertex_attributes().begin(),
itend=lcc.vertex_attributes().end();
it!=itend; ++it)
{
std::cout<<"point: "<<lcc.point_of_vertex_attribute(it)<<", "<<"color: "
<<lcc.info_of_attribute<0>(it)<<std::endl;
}
return EXIT_SUCCESS;
}