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BOP_BSPNode.h

/**
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */
 
#ifndef BOP_BSPNODE_H
#define BOP_BSPNODE_H

#include "MT_Plane3.h"
#include "BOP_Tag.h"
#include "BOP_Face.h"

typedef vector<MT_Point3> BOP_BSPPoints;
typedef vector<MT_Point3>::iterator BOP_IT_BSPPoints;

class BOP_BSPNode
{
protected:
      BOP_BSPNode* m_inChild;
      BOP_BSPNode* m_outChild;
      MT_Plane3    m_plane;
      unsigned int m_deep;

public:
      // Construction methods
      BOP_BSPNode(const MT_Plane3& plane);
      ~BOP_BSPNode();
      unsigned int addFace(BOP_BSPPoints pts, 
                                     const MT_Plane3& plane);
      BOP_TAG classifyFace(const MT_Point3& p1, 
                                     const MT_Point3& p2, 
                                     const MT_Point3& p3, 
                                     const MT_Plane3& plane) const;
      BOP_TAG simplifiedClassifyFace(const MT_Point3& p1, 
                                                   const MT_Point3& p2, 
                                                   const MT_Point3& p3, 
                                                   const MT_Plane3& plane) const;
      
protected:
      BOP_TAG testPoint(const MT_Point3& p) const;
      BOP_TAG classifyFaceIN(const MT_Point3& p1, 
                                       const MT_Point3& p2, 
                                       const MT_Point3& p3, 
                                       const MT_Plane3& plane) const;
      BOP_TAG classifyFaceOUT(const MT_Point3& p1, 
                                          const MT_Point3& p2, 
                                          const MT_Point3& p3, 
                                          const MT_Plane3& plane) const;
      BOP_TAG simplifiedClassifyFaceIN(const MT_Point3& p1, 
                                                       const MT_Point3& p2, 
                                                       const MT_Point3& p3, 
                                                       const MT_Plane3& plane) const;
      BOP_TAG simplifiedClassifyFaceOUT(const MT_Point3& p1, 
                                                        const MT_Point3& p2, 
                                                        const MT_Point3& p3, 
                                                        const MT_Plane3& plane) const;
      bool hasSameOrientation(const MT_Plane3& plane) const;
      int compChildren() const;
      int splitTriangle(MT_Point3* res, 
                                const MT_Plane3& plane, 
                                const MT_Point3& p1, 
                                const MT_Point3& p2, 
                                const MT_Point3& p3, 
                                const BOP_TAG tag) const;

public:
      // Inline acces methods
      inline void setInChild(BOP_BSPNode* inChild) { m_inChild=inChild; };
      inline void setOutChild(BOP_BSPNode* outChild) { m_outChild=outChild; };
      inline BOP_BSPNode* getInChild() { return m_inChild; };
      inline BOP_BSPNode* getOutChild() { return m_outChild; };
      inline bool isLeaf() const { return !m_inChild && !m_outChild; };
      inline void setPlane(const MT_Plane3& plane) {m_plane=plane;};
      inline MT_Plane3& getPlane() { return m_plane; };

      inline unsigned int getDeep() const {return m_deep;};
      void print(unsigned int deep);
};

#endif

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