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SbBox2d.h
1 #ifndef COIN_SBBOX2D_H
2 #define COIN_SBBOX2D_H
3 
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35 
36 #include <Inventor/SbVec2d.h>
37 
38 class SbBox2f;
39 class SbBox2s;
40 class SbBox2i32;
41 
42 class COIN_DLL_API SbBox2d {
43 public:
44  SbBox2d(void) { makeEmpty(); }
45  SbBox2d(double xmin, double ymin, double xmax, double ymax)
46  : minpt(xmin, ymin), maxpt(xmax, ymax) { }
47  SbBox2d(const SbVec2d & minpoint, const SbVec2d & maxpoint)
48  : minpt(minpoint), maxpt(maxpoint) { }
49  explicit SbBox2d(const SbBox2f & box) { setBounds(box); }
50  explicit SbBox2d(const SbBox2s & box) { setBounds(box); }
51  explicit SbBox2d(const SbBox2i32 & box) { setBounds(box); }
52 
53  SbBox2d & setBounds(double xmin, double ymin, double xmax, double ymax)
54  { minpt.setValue(xmin, ymin); maxpt.setValue(xmax, ymax); return *this; }
55  SbBox2d & setBounds(const SbVec2d & minpoint, const SbVec2d & maxpoint)
56  { minpt = minpoint; maxpt = maxpoint; return *this; }
57  SbBox2d & setBounds(const SbBox2f & box);
58  SbBox2d & setBounds(const SbBox2s & box);
59  SbBox2d & setBounds(const SbBox2i32 & box);
60 
61  void getBounds(double & xmin, double & ymin, double & xmax, double & ymax) const
62  { minpt.getValue(xmin, ymin); maxpt.getValue(xmax, ymax); }
63  void getBounds(SbVec2d & minpoint, SbVec2d & maxpoint) const
64  { minpoint = minpt; maxpoint = maxpt; }
65 
66  const SbVec2d & getMin(void) const { return minpt; }
67  SbVec2d & getMin(void) { return minpt; }
68  const SbVec2d & getMax(void) const { return maxpt; }
69  SbVec2d & getMax(void) { return maxpt; }
70 
71  void extendBy(const SbVec2d & point);
72  void extendBy(const SbBox2d & box);
73  void makeEmpty(void);
74  SbBool isEmpty(void) const { return (maxpt[0] < minpt[0]); }
75  SbBool hasArea(void) const { return ((maxpt[0] > minpt[0]) && (maxpt[1] > minpt[1])); }
76 
77  SbBool intersect(const SbVec2d & point) const;
78  SbBool intersect(const SbBox2d & box) const;
79  SbVec2d getClosestPoint(const SbVec2d & p) const;
80  SbBool findIntersection(const SbVec2d & a, const SbVec2d & b, SbVec2d & ia, SbVec2d & ib) const;
81 
82  SbVec2d getCenter(void) const { return (minpt + maxpt) * 0.5; }
83  void getOrigin(double & originX, double & originY) const
84  { minpt.getValue(originX, originY); }
85  void getSize(double & sizeX, double & sizeY) const
86  { if (isEmpty()) { sizeX = sizeY = 0.0; }
87  else { sizeX = maxpt[0] - minpt[0]; sizeY = maxpt[1] - minpt[1]; } }
88  SbVec2d getSize(void) const {
89  SbVec2d v;
90  this->getSize(v[0], v[1]);
91  return v;
92  }
93  double getAspectRatio(void) const
94  { SbDividerChk("SbBox2d::getAspectRatio()", maxpt[1] - minpt[1]);
95  return (maxpt[0] - minpt[0]) / (maxpt[1] - minpt[1]); }
96 
97 private:
98  SbVec2d minpt, maxpt;
99 
100 }; // SbBox2d
101 
102 COIN_DLL_API inline int operator == (const SbBox2d & b1, const SbBox2d & b2) {
103  return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
104 }
105 
106 COIN_DLL_API inline int operator != (const SbBox2d & b1, const SbBox2d & b2) {
107  return !(b1 == b2);
108 }
109 
110 #endif // !COIN_SBBOX2D_H
SbBox2d & setBounds(double xmin, double ymin, double xmax, double ymax)
Definition: SbBox2d.h:53
SbBox2d(void)
Definition: SbBox2d.h:44
SbBox2d(const SbVec2d &minpoint, const SbVec2d &maxpoint)
Definition: SbBox2d.h:47
The SbBox2d class is a 2 dimensional box with double precision corner coordinates.
Definition: SbBox2d.h:42
void getOrigin(double &originX, double &originY) const
Definition: SbBox2d.h:83
double getAspectRatio(void) const
Definition: SbBox2d.h:93
void getSize(double &sizeX, double &sizeY) const
Definition: SbBox2d.h:85
void getBounds(SbVec2d &minpoint, SbVec2d &maxpoint) const
Definition: SbBox2d.h:63
int operator==(const SbBox2s &b1, const SbBox2s &b2)
Definition: SbBox2s.h:102
SbVec2d & getMin(void)
Definition: SbBox2d.h:67
SbBool isEmpty(void) const
Definition: SbBox2d.h:74
const SbVec2d & getMin(void) const
Definition: SbBox2d.h:66
int operator!=(const SbBox2s &b1, const SbBox2s &b2)
Definition: SbBox2s.h:106
const SbVec2d & getMax(void) const
Definition: SbBox2d.h:68
SbBool hasArea(void) const
Definition: SbBox2d.h:75
The SbBox2s class is a 2 dimensional box with short integer coordinates.
Definition: SbBox2s.h:43
SbBox2d(double xmin, double ymin, double xmax, double ymax)
Definition: SbBox2d.h:45
The SbVec2d class is a 2 dimensional vector with double precision floating point coordinates.
Definition: SbVec2d.h:48
The SbBox2f class is a 2 dimensional box with floating point corner coordinates.
Definition: SbBox2f.h:42
SbBox2d & setBounds(const SbVec2d &minpoint, const SbVec2d &maxpoint)
Definition: SbBox2d.h:55
SbVec2d getCenter(void) const
Definition: SbBox2d.h:82
The SbBox2i32 class is a 2 dimensional box with 32-bit integer coordinates.
Definition: SbBox2i32.h:43
SbVec2d & getMax(void)
Definition: SbBox2d.h:69
void getBounds(double &xmin, double &ymin, double &xmax, double &ymax) const
Definition: SbBox2d.h:61