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// -*- C++ -*-
// -------------------------------------------------------------------
// MAdLib - Copyright (C) 2008-2009 Universite catholique de Louvain
//
// See the Copyright.txt and License.txt files for license information.
// You should have received a copy of these files along with MAdLib.
// If not, see <http://www.madlib.be/license/>
//
// Please report all bugs and problems to <contrib@madlib.be>
//
// Authors: Arnaud Francois, Gaetan Compere, Jean-Francois Remacle
// -------------------------------------------------------------------
#ifndef _H_EDGESWAPCONFIG
#define _H_EDGESWAPCONFIG
namespace MAd
{
// -------------------------------------------------------------------
class EdgeSwapTemplate // 3D case
{
public:
EdgeSwapTemplate() {}
virtual ~EdgeSwapTemplate() {}
virtual int getConfig(){ return 0; } // nb of faces attached to edge
virtual int nb_triangulations() = 0; // nb of possible triangulations
virtual int nb_triangles() = 0; // nb of different triangles
virtual int nb_tri_triangulation() = 0; // nb of triangles in a triangulation
virtual const int* triangle( int i ) = 0; // return the triangle i
virtual const int* triangulation( int i ) = 0; // return the triangulation i
};
// -------------------------------------------------------------------
// Null edge swap template
class EdgeSwap0 : public EdgeSwapTemplate
{
public:
EdgeSwap0() { }
int getConfig(){ return 0; }
int nb_triangles(){ return -1; }
int nb_triangulations(){ return -1; }
int nb_tri_triangulation(){ return -1; }
const int* triangle( int i) { return 0; }
const int* triangulation( int i) { return 0; }
};
// -------------------------------------------------------------------
// Edge swap template with 3 faces connected to the edge
class EdgeSwap3 : public EdgeSwapTemplate
{
public:
EdgeSwap3() { }
int getConfig(){ return 3; }
int nb_triangles(){ return 1; }
int nb_triangulations(){ return 1; }
int nb_tri_triangulation(){ return 1; }
const int* triangle( int i) { return triangles[i]; }
const int* triangulation( int i) { return triangulations[i]; }
private:
static const int triangles[1][3];
static const int triangulations[1][1];
};
// -------------------------------------------------------------------
// Edge swap template with 4 faces connected to the edge
class EdgeSwap4 : public EdgeSwapTemplate
{
public:
EdgeSwap4() { }
int getConfig(){ return 4; }
int nb_triangles(){ return 4; }
int nb_triangulations(){ return 2; }
int nb_tri_triangulation(){ return 2; }
const int* triangle( int i) { return triangles[i]; }
const int* triangulation( int i) { return triangulations[i]; }
private:
static const int triangles[4][3];
static const int triangulations[2][2];
};
// -------------------------------------------------------------------
// Edge swap template with 5 faces connected to the edge
class EdgeSwap5 : public EdgeSwapTemplate
{
public:
EdgeSwap5() { }
int getConfig(){ return 5; }
int nb_triangles(){ return 10; }
int nb_triangulations(){ return 5; }
int nb_tri_triangulation(){ return 3; }
const int* triangle( int i) { return triangles[i]; }
const int* triangulation( int i) { return triangulations[i]; }
private:
static const int triangles[10][3];
static const int triangulations[5][3];
};
// -------------------------------------------------------------------
// Edge swap template with 6 faces connected to the edge
class EdgeSwap6 : public EdgeSwapTemplate
{
public:
EdgeSwap6() { }
int getConfig(){ return 6; }
int nb_triangles(){ return 20; }
int nb_triangulations(){ return 14; }
int nb_tri_triangulation(){ return 4; }
const int* triangle( int i) { return triangles[i]; }
const int* triangulation( int i) { return triangulations[i]; }
protected:
static const int triangles[20][3];
static const int triangulations[14][4];
};
// -------------------------------------------------------------------
// Edge swap template with 7 faces connected to the edge
class EdgeSwap7 : public EdgeSwapTemplate
{
public:
EdgeSwap7() { }
int getConfig(){ return 7; }
int nb_triangles(){ return 35; }
int nb_triangulations(){ return 42; }
int nb_tri_triangulation(){ return 5; }
const int* triangle( int i) { return triangles[i]; }
const int* triangulation( int i) { return triangulations[i]; }
protected:
static const int triangles[35][3];
static const int triangulations[42][5];
};
// -------------------------------------------------------------------
// Interface
class EdgeSwapConfiguration
{
public:
EdgeSwapConfiguration( ) { set(0); }
EdgeSwapConfiguration( int n ) { set( n ); }
EdgeSwapConfiguration( const EdgeSwapConfiguration &x ) { set( x.get() ); }
~EdgeSwapConfiguration() { }
// select edge swap template with n faces connected to the edge
void set( int n );
// return the nodes of triangle i for the selected configuration
const int* triangle( int i ) const { return (*c).triangle(i); }
// return the node j of triangle i for the selected configuration
int triangle( int i, int j ) const { return (*c).triangle(i)[j]; }
// return the triangle j of triangulation i
int triangulation( int i, int j ) const { return (*c).triangulation(i)[j]; }
int nb_triangles() const { return c->nb_triangles(); }
int nb_triangulations() const { return c->nb_triangulations(); }
int nb_tri_triangulation() const { return c->nb_tri_triangulation(); }
int get() const { return c->getConfig(); }
private:
EdgeSwap0 cNull;
EdgeSwap3 c3;
EdgeSwap4 c4;
EdgeSwap5 c5;
EdgeSwap6 c6;
EdgeSwap7 c7;
EdgeSwapTemplate * c;
};
// -------------------------------------------------------------------
}
#endif
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