libsegl/catmullromspline.h

/* libsegl - Sebas Extended GL Library
 *           Collection of Opengl/3D-Math helpers
 *
 *      Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
 *      http://www.seba-geek.de
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 */

#ifndef __CATMULLROMSPLINE_H
#define __CATMULLROMSPLINE_H

#include <iostream>
#include <SDL.h>
#include <SDL_opengl.h>
#include "matrix.h"
#include "punkt2d.h"
#include "punkt3d.h"

namespace segl {

class CatmullRomSpline {
	private:
		Matrix *cr;
		float s;
		
		void makeMatrix();
	public:
		CatmullRomSpline(float _s=0.5f);
		
		Matrix getPosition(float u, Matrix &controlpoints);
		Punkt3D getPosition(float u, Punkt3D a, Punkt3D b, Punkt3D c, Punkt3D d);
		Punkt2D getPosition(float u, Punkt2D a, Punkt2D b, Punkt2D c, Punkt2D d);
		
		
		void setS(float _s);
		~CatmullRomSpline();
};

} // namespace segl

#endif