Main Page   Class Hierarchy   Alphabetical List   Compound List   File List   Compound Members

FXRange.h

00001 /********************************************************************************
00002 *                                                                               *
00003 *                             R a n g e    C l a s s                            *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 1994,2002 by Jeroen van der Zijp.   All Rights Reserved.        *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or                 *
00009 * modify it under the terms of the GNU Lesser General Public                    *
00010 * License as published by the Free Software Foundation; either                  *
00011 * version 2.1 of the License, or (at your option) any later version.            *
00012 *                                                                               *
00013 * This library is distributed in the hope that it will be useful,               *
00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of                *
00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU             *
00016 * Lesser General Public License for more details.                               *
00017 *                                                                               *
00018 * You should have received a copy of the GNU Lesser General Public              *
00019 * License along with this library; if not, write to the Free Software           *
00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
00021 *********************************************************************************
00022 * $Id: FXRange.h,v 1.6 2002/01/18 22:42:54 jeroen Exp $                         *
00023 ********************************************************************************/
00024 #ifndef FXRANGE_H
00025 #define FXRANGE_H
00026 
00027 
00028 /// Range
00029 class FXAPI FXRange {
00030 protected:
00031   FXfloat d[3][2];
00032 public:
00033 
00034   /// Default constructor
00035   FXRange(){}
00036 
00037   /// Initialize
00038   FXRange(FXfloat xlo,FXfloat xhi,FXfloat ylo,FXfloat yhi,FXfloat zlo,FXfloat zhi){
00039     d[0][0]=xlo; d[0][1]=xhi;
00040     d[1][0]=ylo; d[1][1]=yhi;
00041     d[2][0]=zlo; d[2][1]=zhi;
00042     }
00043 
00044   /// Length of side i
00045   FXfloat side(FXint i) const { return d[i][1]-d[i][0]; }
00046 
00047   /// Width of box
00048   FXfloat width() const { return d[0][1]-d[0][0]; }
00049 
00050   /// Height of box
00051   FXfloat height() const { return d[1][1]-d[1][0]; }
00052 
00053   /// Depth of box
00054   FXfloat depth() const { return d[2][1]-d[2][0]; }
00055 
00056   /// Longest side
00057   FXfloat longest() const;
00058 
00059   /// shortest side
00060   FXfloat shortest() const;
00061 
00062   /// Test if empty
00063   FXbool empty() const;
00064 
00065   /// Test if overlap
00066   FXbool overlap(const FXRange& box) const;
00067 
00068   /// Test if box contains point x,y,z
00069   FXbool contains(FXfloat x,FXfloat y,FXfloat z) const;
00070 
00071   /// Indexing
00072   FXfloat* operator[](FXint i){ return d[i]; }
00073 
00074   /// Indexing
00075   const FXfloat* operator[](FXint i) const { return d[i]; }
00076 
00077   /// Include given range into box
00078   FXRange& include(const FXRange& box);
00079 
00080   /// Include point
00081   FXRange& include(FXfloat x,FXfloat y,FXfloat z);
00082 
00083   /// Include point
00084   FXRange& include(const FXVec& v);
00085 
00086   /// Clip domain against another
00087   FXRange& clipTo(const FXRange& box);
00088 
00089   /// Get corners of box
00090   friend FXAPI void boxCorners(FXVec* points,const FXRange& box);
00091 
00092   /// Ray intersection test
00093   friend FXAPI FXbool boxIntersect(const FXRange& box,const FXVec& u,const FXVec& v);
00094 
00095   /// Get center of box
00096   friend FXAPI FXVec boxCenter(const FXRange& box);
00097 
00098   /// Compute diagonal
00099   friend FXAPI FXfloat boxDiagonal(const FXRange& box);
00100 
00101   /// Save object to a stream
00102   friend FXAPI FXStream& operator<<(FXStream& store,const FXRange& box);
00103 
00104   /// Load object from a stream
00105   friend FXAPI FXStream& operator>>(FXStream& store,FXRange& box);
00106   };
00107 
00108 
00109 #endif