3dpcp/.svn/pristine/65/65c797104b91af81ebca53301ab8e825def31f83.svn-base

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2012-09-16 12:33:11 +00:00
/**
* @file graphicsAlg.h
*
* @auhtor Remus Claudiu Dumitru <r.dumitru@jacobs-university.de>
* @date 18 Feb 2012
*
*/
#ifndef GRAPHICSALG_H_
#define GRAPHICSALG_H_
//==============================================================================
// Includes
//==============================================================================
#include "model/plane3d.h"
#include <vector>
#include <CGAL/Simple_cartesian.h>
#include <CGAL/Filtered_kernel.h>
#include <CGAL/algorithm.h>
#include <CGAL/Delaunay_triangulation_2.h>
#include <CGAL/Alpha_shape_2.h>
#include <CGAL/Triangulation_hierarchy_2.h>
#include <CGAL/Alpha_shape_euclidean_traits_2.h>
#include <CGAL/Triangulation_face_base_2.h>
#include <CGAL/Triangulation_hierarchy_vertex_base_2.h>
namespace model {
class GraphicsAlg {
private:
typedef double Type;
typedef CGAL::Simple_cartesian<Type> SC;
typedef CGAL::Filtered_kernel<SC> K;
typedef CGAL::Alpha_shape_euclidean_traits_2<K> Gt;
typedef CGAL::Alpha_shape_vertex_base_2<Gt> Avb;
typedef CGAL::Triangulation_hierarchy_vertex_base_2<Avb> Av;
typedef CGAL::Triangulation_face_base_2<Gt> Tf;
typedef CGAL::Alpha_shape_face_base_2<Gt,Tf> Af;
typedef CGAL::Triangulation_default_data_structure_2<Gt,Av,Af> Tds;
typedef CGAL::Delaunay_triangulation_2<Gt,Tds> Dt;
typedef CGAL::Triangulation_hierarchy_2<Dt> Ht;
/**
* Computes the alpha edges.
*/
template <class InputIterator, class OutputIterator>
static void alpha_edges(InputIterator begin, InputIterator end,
const Type& Alpha,
bool mode,
OutputIterator out);
public:
typedef CGAL::Alpha_shape_2<Ht> Alpha_shape_2;
typedef K::Point_2 Point;
typedef K::Segment_2 Segment;
typedef Alpha_shape_2::Face Face;
typedef Alpha_shape_2::Vertex Vertex;
typedef Alpha_shape_2::Edge Edge;
typedef Alpha_shape_2::Face_handle Face_handle;
typedef Alpha_shape_2::Vertex_handle Vertex_handle;
typedef Alpha_shape_2::Face_circulator Face_circulator;
typedef Alpha_shape_2::Vertex_circulator Vertex_circulator;
typedef Alpha_shape_2::Locate_type Locate_type;
typedef Alpha_shape_2::Face_iterator Face_iterator;
typedef Alpha_shape_2::Vertex_iterator Vertex_iterator;
typedef Alpha_shape_2::Edge_iterator Edge_iterator;
typedef Alpha_shape_2::Edge_circulator Edge_circulator;
typedef Alpha_shape_2::Alpha_iterator Alpha_iterator;
typedef Alpha_shape_2::Alpha_shape_edges_iterator Alpha_shape_edges_iterator;
/**
* Sort planes HORIZONTALLY in a clockwise order, around the center of mass.
* @warning in place sort
*/
static void clockwiseSort(std::vector<model::Plane3d>& planes);
/**
* Computes the HORIZONTAL convex hull of the given planes.
*/
static std::vector<model::Plane3d> getConcaveHull(std::vector<model::Plane3d> planes);
/**
* Computes the discrete line between two points using Bresenham's algorithm.
* @param src the source point
* @param dest the destination point
* @param precision the precision at which the discrete line shall be drawn
*/
static void getDiscreteLine(model::Point3d src, model::Point3d dest, double precision, const double& extraDist,
std::vector<model::Point3d>& line);
};
} /* namespace model */
#endif /* GRAPHICSALG_H_ */