source: projectionDesigner/tag/ProjectionDesigner_1.1.5/projdesigner/include/gmtl/AABox.h @ 2

Last change on this file since 2 was 2, checked in by Torben Dannhauer, 10 years ago
File size: 4.6 KB
Line 
1/************************************************************** ggt-head beg
2 *
3 * GGT: Generic Graphics Toolkit
4 *
5 * Original Authors:
6 *   Allen Bierbaum
7 *
8 * -----------------------------------------------------------------
9 * File:          AABox.h,v
10 * Date modified: 2004/11/22 15:04:05
11 * Version:       1.12
12 * -----------------------------------------------------------------
13 *
14 *********************************************************** ggt-head end */
15/*************************************************************** ggt-cpr beg
16*
17* GGT: The Generic Graphics Toolkit
18* Copyright (C) 2001,2002 Allen Bierbaum
19*
20* This library is free software; you can redistribute it and/or
21* modify it under the terms of the GNU Lesser General Public
22* License as published by the Free Software Foundation; either
23* version 2.1 of the License, or (at your option) any later version.
24*
25* This library is distributed in the hope that it will be useful,
26* but WITHOUT ANY WARRANTY; without even the implied warranty of
27* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28* Lesser General Public License for more details.
29*
30* You should have received a copy of the GNU Lesser General Public
31* License along with this library; if not, write to the Free Software
32* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33*
34 ************************************************************ ggt-cpr end */
35#ifndef _GMTL_AABOX_H_
36#define _GMTL_AABOX_H_
37
38#include <gmtl/Point.h>
39
40namespace gmtl
41{
42   /**
43    * Describes an axially aligned box in 3D space. This is usually used for
44    * graphics applications. It is defined by its minimum and maximum points.
45    *
46    * @param DATA_TYPE     the internal type used for the points
47    *
48    * @ingroup Types
49    */
50   template< class DATA_TYPE >
51   class AABox
52   {
53      // This is a hack to work around a bug with GCC 3.3 on Mac OS X
54      // where boost::is_polymorphic returns a false positive.  The details
55      // can be found in the Boost.Python FAQ:
56      //    http://www.boost.org/libs/python/doc/v2/faq.html#macosx
57#if defined(__MACH__) && defined(__APPLE_CC__) && defined(__GNUC__) && \
58    __GNUC__ == 3 && __GNUC_MINOR__ == 3
59      bool dummy_;
60#endif
61   public:
62      typedef DATA_TYPE DataType;
63
64   public:
65      /**
66       * Creates a new empty box.
67       */
68      AABox()
69         : mMin(0,0,0), mMax(0,0,0), mEmpty(true)
70      {}
71
72      /**
73       * Creates a new box with the given min and max points.
74       *
75       * @param min     the minimum point on the box
76       * @param max     the maximum point on the box
77       *
78       * @pre  all elements of min are less than max
79       * @pre  bot min and max are not zero
80       */
81      AABox(const Point<DATA_TYPE, 3>& min, const Point<DATA_TYPE, 3>& max)
82         : mMin(min), mMax(max), mEmpty(false)
83      {}
84
85      /**
86       * Construcst a duplicate of the given box.
87       *
88       * @param box     the box the make a copy of
89       */
90      AABox(const AABox<DATA_TYPE>& box)
91         : mMin(box.mMin), mMax(box.mMax), mEmpty(box.mEmpty)
92      {}
93
94      /**
95       * Gets the minimum point of the box.
96       *
97       * @return  the min point
98       */
99      const Point<DATA_TYPE, 3>& getMin() const
100      {
101         return mMin;
102      }
103
104      /**
105       * Gets the maximum point of the box.
106       *
107       * @return  the max point
108       */
109      const Point<DATA_TYPE, 3>& getMax() const
110      {
111         return mMax;
112      }
113
114      /**
115       * Tests if this box occupies no space.
116       *
117       * @return  true if the box is empty, false otherwise
118       */
119      bool isEmpty() const
120      {
121         return mEmpty;
122      }
123
124      /**
125       * Sets the minimum point of the box.
126       *
127       * @param min     the min point
128       */
129      void setMin(const Point<DATA_TYPE, 3>& min)
130      {
131         mMin = min;
132      }
133
134      /**
135       * Sets the maximum point of the box.
136       *
137       * @param max     the max point
138       */
139      void setMax(const Point<DATA_TYPE, 3>& max)
140      {
141         mMax = max;
142      }
143
144      /**
145       * Sets the empty flag on this box.
146       *
147       * @param empty   true to make the box empty, false otherwise
148       */
149      void setEmpty(bool empty)
150      {
151         mEmpty = empty;
152      }
153
154   public:
155      /**
156       * The minimum point of the box.
157       */
158      Point<DATA_TYPE, 3> mMin;
159
160      /**
161       * The maximum point on the box.
162       */
163      Point<DATA_TYPE, 3> mMax;
164
165      /**
166       * Flag for empty box. True if the box is empty.
167       */
168      bool mEmpty;
169   };
170
171   // --- helper types --- //
172   typedef AABox<float>    AABoxf;
173   typedef AABox<double>   AABoxd;
174}
175
176#endif
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