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SbBox3i32.h

00001 #ifndef COIN_SBBOX3I32_H
00002 #define COIN_SBBOX3I32_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) 1998-2007 by Systems in Motion.  All rights reserved.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Systems in Motion about acquiring
00018  *  a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <Inventor/SbVec3i32.h>
00028 #include <Inventor/SbVec3f.h>
00029 
00030 class SbBox3s;
00031 class SbBox3f;
00032 class SbBox3d;
00033 class SbMatrix;
00034 
00035 class COIN_DLL_API SbBox3i32 {
00036 public:
00037   SbBox3i32(void) { makeEmpty(); }
00038   SbBox3i32(int32_t xmin, int32_t ymin, int32_t zmin, int32_t xmax, int32_t ymax, int32_t zmax)
00039     : minpt(xmin, ymin, zmin), maxpt(xmax, ymax, zmax) { }
00040   SbBox3i32(const SbVec3i32 & minpoint, const SbVec3i32 & maxpoint)
00041     : minpt(minpoint), maxpt(maxpoint) { }
00042   explicit SbBox3i32(const SbBox3s & box) { setBounds(box); }
00043   explicit SbBox3i32(const SbBox3f & box) { setBounds(box); }
00044   explicit SbBox3i32(const SbBox3d & box) { setBounds(box); }
00045 
00046   SbBox3i32 & setBounds(int32_t xmin, int32_t ymin, int32_t zmin, int32_t xmax, int32_t ymax, int32_t zmax)
00047     { minpt.setValue(xmin, ymin, zmin); maxpt.setValue(xmax, ymax, zmax); return *this; }
00048   SbBox3i32 & setBounds(const SbVec3i32 & minpoint, const SbVec3i32 & maxpoint)
00049     { minpt = minpoint; maxpt = maxpoint; return *this; }
00050   SbBox3i32 & setBounds(const SbBox3s & box);
00051   SbBox3i32 & setBounds(const SbBox3f & box);
00052   SbBox3i32 & setBounds(const SbBox3d & box);
00053 
00054   void getBounds(int32_t & xmin, int32_t & ymin, int32_t & zmin, int32_t & xmax, int32_t & ymax, int32_t & zmax) const
00055     { minpt.getValue(xmin, ymin, zmin); maxpt.getValue(xmax, ymax, zmax); }
00056   void getBounds(SbVec3i32 & minpoint, SbVec3i32 & maxpoint) const
00057     { minpoint = minpt; maxpoint = maxpt; }
00058 
00059   const SbVec3i32 & getMin(void) const { return minpt; }
00060   SbVec3i32 & getMin(void) { return minpt; }
00061   const SbVec3i32 & getMax(void) const { return maxpt; }
00062   SbVec3i32 & getMax(void) { return maxpt; }
00063 
00064   void extendBy(const SbVec3i32 & pt);
00065   void extendBy(const SbBox3i32 & bb);
00066   void extendBy(const SbVec3f & pt);
00067   void transform(const SbMatrix & m);
00068   void makeEmpty(void);
00069   SbBool isEmpty(void) const { return (maxpt[0] < minpt[0]); }
00070   SbBool hasVolume(void) const
00071     { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1]) && (maxpt[2] > minpt[2])); }
00072   float getVolume(void) const
00073     { int32_t dx = 0, dy = 0, dz = 0; getSize(dx, dy, dz); return (float(dx) * float(dy) * float(dz)); }
00074 
00075   SbBool intersect(const SbVec3i32 & pt) const;
00076   SbBool intersect(const SbBox3i32 & bb) const;
00077   SbBool intersect(const SbVec3f & pt) const;
00078 
00079   SbBool outside(const SbMatrix & MVP, int & cullBits) const;
00080   SbVec3f getClosestPoint(const SbVec3f & pt) const;
00081 
00082   SbVec3f getCenter(void) const { return SbVec3f(minpt + maxpt) * 0.5f; }
00083   void getOrigin(int32_t & originX, int32_t & originY, int32_t & originZ) const
00084     { minpt.getValue(originX, originY, originZ); }
00085   void getSize(int32_t & sizeX, int32_t & sizeY, int32_t sizeZ) const
00086     { if (isEmpty()) { sizeX = sizeY = sizeZ = 0; }
00087       else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; sizeZ = maxpt[2] - minpt[2]; } }
00088 
00089   void getSpan(const SbVec3f & direction, float & dmin, float & dmax) const;
00090 
00091 protected:
00092   SbVec3i32 minpt, maxpt;
00093 
00094 }; // SbBox3i32
00095 
00096 COIN_DLL_API inline int operator == (const SbBox3i32 & b1, const SbBox3i32 & b2)
00097 {
00098   return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
00099 }
00100 
00101 COIN_DLL_API inline int operator != (const SbBox3i32 & b1, const SbBox3i32 & b2)
00102 {
00103   return !(b1 == b2);
00104 }
00105 
00106 #endif // !COIN_SBBOX3I32_H

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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