tesseract  4.1.0
Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
TPOINT Struct Reference

#include <blobs.h>

Public Member Functions

 TPOINT ()
 
 TPOINT (int16_t vx, int16_t vy)
 
 TPOINT (const ICOORD &ic)
 
void operator+= (const TPOINT &other)
 
void operator/= (int divisor)
 
bool operator== (const TPOINT &other) const
 

Static Public Member Functions

static bool IsCrossed (const TPOINT &a0, const TPOINT &a1, const TPOINT &b0, const TPOINT &b1)
 

Public Attributes

int16_t x
 
int16_t y
 

Detailed Description

Definition at line 52 of file blobs.h.

Constructor & Destructor Documentation

TPOINT::TPOINT ( )
inline

Definition at line 53 of file blobs.h.

53 : x(0), y(0) {}
TPOINT::x
int16_t x
Definition: blobs.h:73
TPOINT::y
int16_t y
Definition: blobs.h:74
TPOINT::TPOINT ( int16_t  vx,
int16_t  vy 
)
inline

Definition at line 54 of file blobs.h.

54 : x(vx), y(vy) {}
TPOINT::x
int16_t x
Definition: blobs.h:73
TPOINT::y
int16_t y
Definition: blobs.h:74
TPOINT::TPOINT ( const ICOORD &  ic)
inline

Definition at line 55 of file blobs.h.

55 : x(ic.x()), y(ic.y()) {}
TPOINT::x
int16_t x
Definition: blobs.h:73
ICOORD::y
int16_t y() const
access_function
Definition: points.h:56
TPOINT::y
int16_t y
Definition: blobs.h:74
ICOORD::x
int16_t x() const
access function
Definition: points.h:52

Member Function Documentation

bool TPOINT::IsCrossed ( const TPOINT &  a0,
const TPOINT &  a1,
const TPOINT &  b0,
const TPOINT &  b1 
)
static

Definition at line 67 of file blobs.cpp.

68  {
69  int b0a1xb0b1, b0b1xb0a0;
70  int a1b1xa1a0, a1a0xa1b0;
71 
72  TPOINT b0a1, b0a0, a1b1, b0b1, a1a0;
73 
74  b0a1.x = a1.x - b0.x;
75  b0a0.x = a0.x - b0.x;
76  a1b1.x = b1.x - a1.x;
77  b0b1.x = b1.x - b0.x;
78  a1a0.x = a0.x - a1.x;
79  b0a1.y = a1.y - b0.y;
80  b0a0.y = a0.y - b0.y;
81  a1b1.y = b1.y - a1.y;
82  b0b1.y = b1.y - b0.y;
83  a1a0.y = a0.y - a1.y;
84 
85  b0a1xb0b1 = CROSS(b0a1, b0b1);
86  b0b1xb0a0 = CROSS(b0b1, b0a0);
87  a1b1xa1a0 = CROSS(a1b1, a1a0);
88  // For clarity, we want CROSS(a1a0,a1b0) here but we have b0a1 instead of a1b0
89  // so use -CROSS(a1b0,b0a1) instead, which is the same.
90  a1a0xa1b0 = -CROSS(a1a0, b0a1);
91 
92  return ((b0a1xb0b1 > 0 && b0b1xb0a0 > 0) ||
93  (b0a1xb0b1 < 0 && b0b1xb0a0 < 0)) &&
94  ((a1b1xa1a0 > 0 && a1a0xa1b0 > 0) || (a1b1xa1a0 < 0 && a1a0xa1b0 < 0));
95 }
TPOINT::x
int16_t x
Definition: blobs.h:73
TPOINT::y
int16_t y
Definition: blobs.h:74
TPOINT
Definition: blobs.h:52
CROSS
#define CROSS(a, b)
Definition: vecfuncs.h:47
void TPOINT::operator+= ( const TPOINT &  other)
inline

Definition at line 57 of file blobs.h.

57  {
58  x += other.x;
59  y += other.y;
60  }
TPOINT::x
int16_t x
Definition: blobs.h:73
TPOINT::y
int16_t y
Definition: blobs.h:74
void TPOINT::operator/= ( int  divisor)
inline

Definition at line 61 of file blobs.h.

61  {
62  x /= divisor;
63  y /= divisor;
64  }
TPOINT::x
int16_t x
Definition: blobs.h:73
TPOINT::y
int16_t y
Definition: blobs.h:74
bool TPOINT::operator== ( const TPOINT &  other) const
inline

Definition at line 65 of file blobs.h.

65  {
66  return x == other.x && y == other.y;
67  }
TPOINT::x
int16_t x
Definition: blobs.h:73
TPOINT::y
int16_t y
Definition: blobs.h:74

Member Data Documentation

int16_t TPOINT::x

Definition at line 73 of file blobs.h.

int16_t TPOINT::y

Definition at line 74 of file blobs.h.

The documentation for this struct was generated from the following files: