Coin: SbBox2d.h Source File

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SbBox2d.h
1#ifndef COIN_SBBOX2D_H
2#define COIN_SBBOX2D_H
3
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34\**************************************************************************/
35
36#include <Inventor/SbVec2d.h>
37
38class SbBox2f;
39class SbBox2s;
40class SbBox2i32;
41
42 class COIN_DLL_API SbBox2d {
43public:
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
97private:
98 SbVec2d minpt, maxpt;
99
100}; // SbBox2d
101
102COIN_DLL_API inline int operator == (const SbBox2d & b1, const SbBox2d & b2) {
103 return ((b1.getMin() == b2.getMin()) && (b1.getMax() == b2.getMax()));
104}
105
106COIN_DLL_API inline int operator != (const SbBox2d & b1, const SbBox2d & b2) {
107 return !(b1 == b2);
108}
109
110#endif // !COIN_SBBOX2D_H
SbBox2d
The SbBox2d class is a 2 dimensional box with double precision corner coordinates.
Definition SbBox2d.h:42
SbBox2d::isEmpty
SbBool isEmpty(void) const
Definition SbBox2d.h:74
SbBox2d::getMax
SbVec2d & getMax(void)
Definition SbBox2d.h:69
SbBox2d::SbBox2d
SbBox2d(const SbBox2s &box)
Definition SbBox2d.h:50
SbBox2d::setBounds
SbBox2d & setBounds(const SbVec2d &minpoint, const SbVec2d &maxpoint)
Definition SbBox2d.h:55
SbBox2d::getBounds
void getBounds(SbVec2d &minpoint, SbVec2d &maxpoint) const
Definition SbBox2d.h:63
SbBox2d::SbBox2d
SbBox2d(const SbVec2d &minpoint, const SbVec2d &maxpoint)
Definition SbBox2d.h:47
SbBox2d::getSize
void getSize(double &sizeX, double &sizeY) const
Definition SbBox2d.h:85
SbBox2d::makeEmpty
void makeEmpty(void)
Definition SbBox2d.cpp:201
SbBox2d::getAspectRatio
double getAspectRatio(void) const
Definition SbBox2d.h:93
SbBox2d::getMin
SbVec2d & getMin(void)
Definition SbBox2d.h:67
SbBox2d::getBounds
void getBounds(double &xmin, double &ymin, double &xmax, double &ymax) const
Definition SbBox2d.h:61
SbBox2d::getOrigin
void getOrigin(double &originX, double &originY) const
Definition SbBox2d.h:83
SbBox2d::getMax
const SbVec2d & getMax(void) const
Definition SbBox2d.h:68
SbBox2d::getMin
const SbVec2d & getMin(void) const
Definition SbBox2d.h:66
SbBox2d::getCenter
SbVec2d getCenter(void) const
Definition SbBox2d.h:82
SbBox2d::SbBox2d
SbBox2d(double xmin, double ymin, double xmax, double ymax)
Definition SbBox2d.h:45
SbBox2d::SbBox2d
SbBox2d(void)
Definition SbBox2d.h:44
SbBox2d::setBounds
SbBox2d & setBounds(double xmin, double ymin, double xmax, double ymax)
Definition SbBox2d.h:53
SbBox2d::getSize
SbVec2d getSize(void) const
Definition SbBox2d.h:88
SbBox2d::hasArea
SbBool hasArea(void) const
Definition SbBox2d.h:75
SbBox2d::SbBox2d
SbBox2d(const SbBox2i32 &box)
Definition SbBox2d.h:51
SbBox2d::SbBox2d
SbBox2d(const SbBox2f &box)
Definition SbBox2d.h:49
SbBox2f
The SbBox2f class is a 2 dimensional box with floating point corner coordinates.
Definition SbBox2f.h:42
SbBox2i32
The SbBox2i32 class is a 2 dimensional box with 32-bit integer coordinates.
Definition SbBox2i32.h:43
SbBox2s
The SbBox2s class is a 2 dimensional box with short integer coordinates.
Definition SbBox2s.h:43
SbVec2d
The SbVec2d class is a 2 dimensional vector with double precision floating point coordinates.
Definition SbVec2d.h:48