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