source: issm/trunk/src/c/bamg/Triangle.h@ 22758

#ifndef _TRIANGLE_H_
#define _TRIANGLE_H_

#include "./include.h"
#include "AdjacentTriangle.h"

namespace bamg {

        class Mesh;
        class BamgVertex;
        class Triangle;

        class Triangle {

                friend class AdjacentTriangle;

                private:
                        BamgVertex *vertices[3];        // 3 vertices if t is triangle, t[i] allowed by access function, (*t)[i] if pointer
                        Triangle   *adj[3];             // 3 pointers toward the adjacent triangles
                        short       AdjEdgeIndex[3];   // edge id in the adjacent triangles. The edge number 1 is the edge number AdjEdgeIndex[1] in the Adjacent triangle 1

                public: 
                        long long det; //Integer determinant (twice its area)
                        union { 
                                Triangle *link;
                                long      color;
                        };

                        //Constructors/Destructors
                        Triangle();
                        Triangle(Mesh *Th,long i,long j,long k);
                        Triangle(BamgVertex *v0,BamgVertex *v1,BamgVertex *v2);

                        //Operators
                        const BamgVertex & operator[](int i) const {return *vertices[i];};
                        BamgVertex & operator[](int i)  {return *vertices[i];};
                        const BamgVertex * operator()(int i) const {return vertices[i];};
                        BamgVertex * & operator()(int i)  {return vertices[i];};

                        //Methods
                        void              Echo();
                        double            Length() const;
                        int               swap(short a1,int=0);
                        long              Optim(short a,int =0);
                        int               Locked(int a)const;
                        int               Hidden(int a)const;
                        int               GetAllflag(int a);
                        short             NuEdgeTriangleAdj(int i) const;
                        AdjacentTriangle  Adj(int i) const;
                        Triangle         *TriangleAdj(int i) const;
                        void              Renumbering(Triangle   *tb,Triangle *te, long *renu);
                        void              Renumbering(BamgVertex *vb,BamgVertex *ve, long *renu);
                        void              SetAdjAdj(short a);
                        void              SetAdj2(short a,Triangle *t,short aat);
                        void              SetSingleVertexToTriangleConnectivity();
                        void              SetHidden(int a);
                        void              SetLocked(int a);
                        void              SetMarkUnSwap(int a);
                        void              SetUnMarkUnSwap(int a);

                        //Inline methods
                        void  Set(const Triangle &,const Mesh &,Mesh &);
                        int   In(BamgVertex *v) const { return vertices[0]==v || vertices[1]==v || vertices[2]==v ;}
                        BamgVertex* GetVertex(int i){return vertices[i];}; // FIXME: this is used to avoid BamgVertex * operator()

        };

}
#endif