RRV - Radiosity Renderer and Visualizer (C++, OpenGL)

/*
 * Copyright (C) 2007 TODO
 *
 * This file is part of rrv (Radiosity Renderer and Visualizer).
 *
 * rrv 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 3 of the License, or
 * any later version.
 *
 * rrv 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 rrv.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "TriangleSet.h"
 
/**
 * @param  triangle
 */
void TriangleSet::add (Triangle* triangle ) {
	container_.push_back(*triangle);
}
 
/**
 * @param  triangle
 */
void TriangleSet::add (TriangleSet *pTset) {
	TriangleSet &tset = *pTset;
	for(size_t i=0; i< tset.count(); i++) {
		Triangle &t = tset[i];
		this->add(&t);
	}
}
 
/**
 */
size_t TriangleSet::count ( ) {
	return container_.size();
}
 
 
/**
 * @param  index
 */
Triangle& TriangleSet::operator[] (unsigned index ) {
	return container_[index];
}
 
 
/**
 * @return TriangleSet*
 * @param  triangle
 */
TriangleSet* TriangleSet::divide (Triangle* triangle ) {
	TriangleSet* tset = new TriangleSet;
 
	// Compute triangle line's centres
	Vertex *v = triangle->vertex;
	Vertex c[3];
	for (int i=0; i<3; i++)
		c[(i+2)%3] =
				centre(v[i], v[(i+1)%3]);
 
	// Add vertex triangles
	Triangle t = *triangle;
	for (int i=0; i<3; i++) {
		t.vertex[0] = v[i];
		t.vertex[1] = c[(i+2)%3];
		t.vertex[2] = c[(i+1)%3];
		tset-> add(&t);
	}
 
	// Add middle triangle
	for (int i=0; i<3; i++)
		t.vertex[i] = c[i];
	tset-> add(&t);
 
	return tset;
}