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SbBox2f.h
1 #ifndef COIN_SBBOX2F_H
2 #define COIN_SBBOX2F_H
3 
4 /**************************************************************************\
5  *
6  * This file is part of the Coin 3D visualization library.
7  * Copyright (C) by Kongsberg Oil & Gas Technologies.
8  *
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12  * See the file LICENSE.GPL at the root directory of this source
13  * distribution for additional information about the GNU GPL.
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24  *
25 \**************************************************************************/
26 
27 #include <Inventor/SbVec2f.h>
28 
29 class SbBox2d;
30 class SbBox2s;
31 class SbBox2i32;
32 
33 class COIN_DLL_API SbBox2f {
34 public:
35  SbBox2f(void) { makeEmpty(); }
36  SbBox2f(float xmin, float ymin, float xmax, float ymax)
37  : minpt(xmin, ymin), maxpt(xmax, ymax) { }
38  SbBox2f(const SbVec2f & minpoint, const SbVec2f & maxpoint)
39  : minpt(minpoint), maxpt(maxpoint) { }
40  explicit SbBox2f(const SbBox2d & box) { setBounds(box); }
41  explicit SbBox2f(const SbBox2s & box) { setBounds(box); }
42  explicit SbBox2f(const SbBox2i32 & box) { setBounds(box); }
43 
44  SbBox2f & setBounds(float xmin, float ymin, float xmax, float ymax)
45  { minpt.setValue(xmin, ymin); maxpt.setValue(xmax, ymax); return *this; }
46  SbBox2f & setBounds(const SbVec2f & minpoint, const SbVec2f & maxpoint)
47  { minpt = minpoint; maxpt = maxpoint; return *this; }
48  SbBox2f & setBounds(const SbBox2d & box);
49  SbBox2f & setBounds(const SbBox2s & box);
50  SbBox2f & setBounds(const SbBox2i32 & box);
51 
52  void getBounds(float & xmin, float & ymin, float & xmax, float & ymax) const
53  { minpt.getValue(xmin, ymin); maxpt.getValue(xmax, ymax); }
54  void getBounds(SbVec2f & minpoint, SbVec2f & maxpoint) const
55  { minpoint = minpt; maxpoint = maxpt; }
56 
57  const SbVec2f & getMin(void) const { return minpt; }
58  SbVec2f & getMin(void) { return minpt; }
59 
60  const SbVec2f & getMax(void) const { return maxpt; }
61  SbVec2f & getMax(void) { return maxpt; }
62 
63  void extendBy(const SbVec2f & point);
64  void extendBy(const SbBox2f & box);
65  void makeEmpty(void);
66  SbBool isEmpty(void) const { return (maxpt[0] < minpt[0]); }
67  SbBool hasArea(void) const { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1])); }
68 
69  SbBool intersect(const SbVec2f & point) const;
70  SbBool intersect(const SbBox2f & box) const;
71  SbVec2f getClosestPoint(const SbVec2f & point) const;
72 
73  SbVec2f getCenter(void) const { return (minpt + maxpt) * 0.5f; }
74  void getOrigin(float & originX, float & originY) const
75  { minpt.getValue(originX, originY); }
76  void getSize(float & sizeX, float & sizeY) const
77  { if (isEmpty()) { sizeX = sizeY = 0.0f; }
78  else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; } }
79  float getAspectRatio(void) const
80  { SbDividerChk("SbBox2f::getAspectRatio()", maxpt[1] - minpt[1]);
81  return (maxpt[0] - minpt[0]) / (maxpt[1] - minpt[1]); }
82 
83 protected:
84  SbVec2f minpt, maxpt;
85 
86 }; // SbBox2f
87 
88 COIN_DLL_API inline int operator == (const SbBox2f & b1, const SbBox2f & b2) {
89  return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
90 }
91 
92 COIN_DLL_API inline int operator != (const SbBox2f & b1, const SbBox2f & b2) {
93  return !(b1 == b2);
94 }
95 
96 #endif // !COIN_SBBOX2F_H
The SbVec2f class is a 2 dimensional vector with floating point coordinates.This vector class is used...
Definition: SbVec2f.h:39
void getBounds(float &xmin, float &ymin, float &xmax, float &ymax) const
Definition: SbBox2f.h:52
SbBox2f(float xmin, float ymin, float xmax, float ymax)
Definition: SbBox2f.h:36
const SbVec2f & getMax(void) const
Definition: SbBox2f.h:60
SbBox2f(void)
Definition: SbBox2f.h:35
The SbBox2d class is a 2 dimensional box with double precision corner coordinates....
Definition: SbBox2d.h:33
int operator!=(const SbBox2d &b1, const SbBox2d &b2)
Definition: SbBox2d.h:92
const SbVec2f & getMin(void) const
Definition: SbBox2f.h:57
int operator==(const SbBox2d &b1, const SbBox2d &b2)
Definition: SbBox2d.h:88
SbBox2f & setBounds(float xmin, float ymin, float xmax, float ymax)
Definition: SbBox2f.h:44
void getOrigin(float &originX, float &originY) const
Definition: SbBox2f.h:74
SbBool isEmpty(void) const
Definition: SbBox2f.h:66
SbBool hasArea(void) const
Definition: SbBox2f.h:67
The SbBox2s class is a 2 dimensional box with short integer coordinates.This box class is used by oth...
Definition: SbBox2s.h:34
void getBounds(SbVec2f &minpoint, SbVec2f &maxpoint) const
Definition: SbBox2f.h:54
float getAspectRatio(void) const
Definition: SbBox2f.h:79
The SbBox2f class is a 2 dimensional box with floating point corner coordinates.This box class is use...
Definition: SbBox2f.h:33
SbVec2f getCenter(void) const
Definition: SbBox2f.h:73
void getSize(float &sizeX, float &sizeY) const
Definition: SbBox2f.h:76
SbBox2f(const SbVec2f &minpoint, const SbVec2f &maxpoint)
Definition: SbBox2f.h:38
SbBox2f & setBounds(const SbVec2f &minpoint, const SbVec2f &maxpoint)
Definition: SbBox2f.h:46
SbVec2f & getMin(void)
Definition: SbBox2f.h:58

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