Triangulate.h

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/*
 * Copyright (C) <2012> <EDF-R&D> <FRANCE>
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef TRIANGULATE_H
 
#define TRIANGULATE_H
 
/*****************************************************************/
/*****************************************************************/
 
#include <vector> // Include STL vector class.
#include "Geometry/mathlib.h"
 
// Typedef an STL vector of vertices which are used to represent
// a polygon/contour and a series of triangles.
typedef std::vector<vec2> Vector2dVector;
 
class Triangulate
{
public:
    static bool Process(const Vector2dVector& contour, Vector2dVector& result);
 
    static float Area(const Vector2dVector& contour);
 
    static bool InsideTriangle(float Ax, float Ay, float Bx, float By, float Cx, float Cy, float Px,
                               float Py);
 
private:
    static bool Snip(const Vector2dVector& contour, int u, int v, int w, int n, int* V);
};
 
#endif