CGAL 6.2 - Shape Regularization

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Shape_regularization/regularize_framework.cpp
#include <CGAL/Simple_cartesian.h>
#include <CGAL/Shape_regularization.h>
using Kernel = CGAL::Simple_cartesian<double>;
using FT = typename Kernel::FT;
struct Custom_object {
const std::string name;
Custom_object(const std::string name_) :
name(name_) { }
// define your object here
};
struct Custom_neighbor_query_2 {
void operator()(
const std::size_t query_index, std::vector<std::size_t>& neighbors) {
neighbors.clear();
if (query_index == 0) { neighbors.push_back(1); } // first object
if (query_index == 1) { neighbors.push_back(0); } // second object
}
};
struct Custom_regularization_2 {
FT bound(const std::size_t ) const {
return FT(5); // maximum angle change
}
FT target(const std::size_t , const std::size_t ) {
return FT(0); // 0 angle change
}
void update(const std::vector<FT>& ) {
// skip update
}
};
template<typename NT>
class Custom_quadratic_program_traits {
public:
void set_P(const std::size_t, const std::size_t, const FT) { }
void set_q(const std::size_t, const FT) { }
void set_r(const FT) { }
void set_A(const std::size_t, const std::size_t, const FT) { }
void set_l(const std::size_t, const FT) { }
void set_u(const std::size_t, const FT) { }
void resize(const std::size_t, const std::size_t) { }
template<typename OutputIterator>
bool solve(OutputIterator solution) {
// 3 = 2 objects + 1 edge between them
for (std::size_t i = 0; i < 3; ++i) {
*(++solution) = NT(0);
}
return true;
}
};
using Objects = std::vector<Custom_object>;
using Neighbor_query = Custom_neighbor_query_2;
using Regularization_type = Custom_regularization_2;
using Quadratic_program = Custom_quadratic_program_traits<FT>;
using Regularizer = CGAL::Shape_regularization::QP_regularization<
Kernel, Objects, Neighbor_query, Regularization_type, Quadratic_program>;
int main() {
Neighbor_query neighbor_query;
Regularization_type regularization_type;
Quadratic_program quadratic_program;
std::vector<Custom_object> objects = {
Custom_object("first"), Custom_object("second")
};
Regularizer regularizer(
objects, neighbor_query, regularization_type, quadratic_program);
regularizer.regularize();
std::cout << "* regularized 2 objects" << std::endl;
}
Shape_regularization.h
A convenience header that includes all free functions and classes for shape regularization.
CGAL::Shape_regularization::QP_regularization
Shape regularization algorithm based on the quadratic programming global optimization.
Definition: QP_regularization.h:70
OutputIterator
Kernel
CGAL::Simple_cartesian