TriangleRep.cpp

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/*
 * 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.
 */
 
#include "TriangleRep.h"
 
namespace Freestyle {
 
void TriangleRep::ComputeBBox()
{
  real XMax = _vertices[0][0];
  real YMax = _vertices[0][1];
  real ZMax = _vertices[0][2];
 
  real XMin = _vertices[0][0];
  real YMin = _vertices[0][1];
  real ZMin = _vertices[0][2];
 
  // parse all the coordinates to find the XMax, YMax, ZMax
  for (int i = 0; i < 3; ++i) {
    // X
    if (_vertices[i][0] > XMax) {
      XMax = _vertices[i][0];
    }
    if (_vertices[i][0] < XMin) {
      XMin = _vertices[i][0];
    }
 
    // Y
    if (_vertices[i][1] > YMax) {
      YMax = _vertices[i][1];
    }
    if (_vertices[i][1] < YMin) {
      YMin = _vertices[i][1];
    }
 
    // Z
    if (_vertices[i][2] > ZMax) {
      ZMax = _vertices[i][2];
    }
    if (_vertices[i][2] < ZMin) {
      ZMin = _vertices[i][2];
    }
  }
 
  setBBox(BBox<Vec3r>(Vec3r(XMin, YMin, ZMin), Vec3r(XMax, YMax, ZMax)));
}
 
} /* namespace Freestyle */