mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-11-25 11:39:06 +08:00
82b1b201fc
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@568 d0cd1f9f-072b-0410-8dd7-cf729c803f20
485 lines
13 KiB
C
485 lines
13 KiB
C
/**********************************************************************
|
|
* File: ipoints.h (Formerly icoords.h)
|
|
* Description: Inline functions for coords.h.
|
|
* Author: Ray Smith
|
|
* Created: Fri Jun 21 15:14:21 BST 1991
|
|
*
|
|
* (C) Copyright 1991, Hewlett-Packard Ltd.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#ifndef IPOINTS_H
|
|
#define IPOINTS_H
|
|
|
|
#include <math.h>
|
|
|
|
/**********************************************************************
|
|
* operator!
|
|
*
|
|
* Rotate an ICOORD 90 degrees anticlockwise.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD
|
|
operator! ( //rotate 90 deg anti
|
|
const ICOORD & src //thing to rotate
|
|
) {
|
|
ICOORD result; //output
|
|
|
|
result.xcoord = -src.ycoord;
|
|
result.ycoord = src.xcoord;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator-
|
|
*
|
|
* Unary minus of an ICOORD.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD
|
|
operator- ( //unary minus
|
|
const ICOORD & src //thing to minus
|
|
) {
|
|
ICOORD result; //output
|
|
|
|
result.xcoord = -src.xcoord;
|
|
result.ycoord = -src.ycoord;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator+
|
|
*
|
|
* Add 2 ICOORDS.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD
|
|
operator+ ( //sum vectors
|
|
const ICOORD & op1, //operands
|
|
const ICOORD & op2) {
|
|
ICOORD sum; //result
|
|
|
|
sum.xcoord = op1.xcoord + op2.xcoord;
|
|
sum.ycoord = op1.ycoord + op2.ycoord;
|
|
return sum;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator+=
|
|
*
|
|
* Add 2 ICOORDS.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD &
|
|
operator+= ( //sum vectors
|
|
ICOORD & op1, //operands
|
|
const ICOORD & op2) {
|
|
op1.xcoord += op2.xcoord;
|
|
op1.ycoord += op2.ycoord;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator-
|
|
*
|
|
* Subtract 2 ICOORDS.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD
|
|
operator- ( //subtract vectors
|
|
const ICOORD & op1, //operands
|
|
const ICOORD & op2) {
|
|
ICOORD sum; //result
|
|
|
|
sum.xcoord = op1.xcoord - op2.xcoord;
|
|
sum.ycoord = op1.ycoord - op2.ycoord;
|
|
return sum;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator-=
|
|
*
|
|
* Subtract 2 ICOORDS.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD &
|
|
operator-= ( //sum vectors
|
|
ICOORD & op1, //operands
|
|
const ICOORD & op2) {
|
|
op1.xcoord -= op2.xcoord;
|
|
op1.ycoord -= op2.ycoord;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator%
|
|
*
|
|
* Scalar product of 2 ICOORDS.
|
|
**********************************************************************/
|
|
|
|
inline inT32
|
|
operator% ( //scalar product
|
|
const ICOORD & op1, //operands
|
|
const ICOORD & op2) {
|
|
return op1.xcoord * op2.xcoord + op1.ycoord * op2.ycoord;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator*
|
|
*
|
|
* Cross product of 2 ICOORDS.
|
|
**********************************************************************/
|
|
|
|
inline inT32 operator *( //cross product
|
|
const ICOORD &op1, //operands
|
|
const ICOORD &op2) {
|
|
return op1.xcoord * op2.ycoord - op1.ycoord * op2.xcoord;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator*
|
|
*
|
|
* Scalar multiply of an ICOORD.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD operator *( //scalar multiply
|
|
const ICOORD &op1, //operands
|
|
inT16 scale) {
|
|
ICOORD result; //output
|
|
|
|
result.xcoord = op1.xcoord * scale;
|
|
result.ycoord = op1.ycoord * scale;
|
|
return result;
|
|
}
|
|
|
|
|
|
inline ICOORD operator *( //scalar multiply
|
|
inT16 scale,
|
|
const ICOORD &op1 //operands
|
|
) {
|
|
ICOORD result; //output
|
|
|
|
result.xcoord = op1.xcoord * scale;
|
|
result.ycoord = op1.ycoord * scale;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator*=
|
|
*
|
|
* Scalar multiply of an ICOORD.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD &
|
|
operator*= ( //scalar multiply
|
|
ICOORD & op1, //operands
|
|
inT16 scale) {
|
|
op1.xcoord *= scale;
|
|
op1.ycoord *= scale;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator/
|
|
*
|
|
* Scalar divide of an ICOORD.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD
|
|
operator/ ( //scalar divide
|
|
const ICOORD & op1, //operands
|
|
inT16 scale) {
|
|
ICOORD result; //output
|
|
|
|
result.xcoord = op1.xcoord / scale;
|
|
result.ycoord = op1.ycoord / scale;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator/=
|
|
*
|
|
* Scalar divide of an ICOORD.
|
|
**********************************************************************/
|
|
|
|
inline ICOORD &
|
|
operator/= ( //scalar divide
|
|
ICOORD & op1, //operands
|
|
inT16 scale) {
|
|
op1.xcoord /= scale;
|
|
op1.ycoord /= scale;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* ICOORD::rotate
|
|
*
|
|
* Rotate an ICOORD by the given (normalized) (cos,sin) vector.
|
|
**********************************************************************/
|
|
|
|
inline void ICOORD::rotate( //rotate by vector
|
|
const FCOORD& vec) {
|
|
inT16 tmp;
|
|
|
|
tmp = (inT16) floor (xcoord * vec.x () - ycoord * vec.y () + 0.5);
|
|
ycoord = (inT16) floor (ycoord * vec.x () + xcoord * vec.y () + 0.5);
|
|
xcoord = tmp;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator!
|
|
*
|
|
* Rotate an FCOORD 90 degrees anticlockwise.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD
|
|
operator! ( //rotate 90 deg anti
|
|
const FCOORD & src //thing to rotate
|
|
) {
|
|
FCOORD result; //output
|
|
|
|
result.xcoord = -src.ycoord;
|
|
result.ycoord = src.xcoord;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator-
|
|
*
|
|
* Unary minus of an FCOORD.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD
|
|
operator- ( //unary minus
|
|
const FCOORD & src //thing to minus
|
|
) {
|
|
FCOORD result; //output
|
|
|
|
result.xcoord = -src.xcoord;
|
|
result.ycoord = -src.ycoord;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator+
|
|
*
|
|
* Add 2 FCOORDS.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD
|
|
operator+ ( //sum vectors
|
|
const FCOORD & op1, //operands
|
|
const FCOORD & op2) {
|
|
FCOORD sum; //result
|
|
|
|
sum.xcoord = op1.xcoord + op2.xcoord;
|
|
sum.ycoord = op1.ycoord + op2.ycoord;
|
|
return sum;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator+=
|
|
*
|
|
* Add 2 FCOORDS.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD &
|
|
operator+= ( //sum vectors
|
|
FCOORD & op1, //operands
|
|
const FCOORD & op2) {
|
|
op1.xcoord += op2.xcoord;
|
|
op1.ycoord += op2.ycoord;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator-
|
|
*
|
|
* Subtract 2 FCOORDS.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD
|
|
operator- ( //subtract vectors
|
|
const FCOORD & op1, //operands
|
|
const FCOORD & op2) {
|
|
FCOORD sum; //result
|
|
|
|
sum.xcoord = op1.xcoord - op2.xcoord;
|
|
sum.ycoord = op1.ycoord - op2.ycoord;
|
|
return sum;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator-=
|
|
*
|
|
* Subtract 2 FCOORDS.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD &
|
|
operator-= ( //sum vectors
|
|
FCOORD & op1, //operands
|
|
const FCOORD & op2) {
|
|
op1.xcoord -= op2.xcoord;
|
|
op1.ycoord -= op2.ycoord;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator%
|
|
*
|
|
* Scalar product of 2 FCOORDS.
|
|
**********************************************************************/
|
|
|
|
inline float
|
|
operator% ( //scalar product
|
|
const FCOORD & op1, //operands
|
|
const FCOORD & op2) {
|
|
return op1.xcoord * op2.xcoord + op1.ycoord * op2.ycoord;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator*
|
|
*
|
|
* Cross product of 2 FCOORDS.
|
|
**********************************************************************/
|
|
|
|
inline float operator *( //cross product
|
|
const FCOORD &op1, //operands
|
|
const FCOORD &op2) {
|
|
return op1.xcoord * op2.ycoord - op1.ycoord * op2.xcoord;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator*
|
|
*
|
|
* Scalar multiply of an FCOORD.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD operator *( //scalar multiply
|
|
const FCOORD &op1, //operands
|
|
float scale) {
|
|
FCOORD result; //output
|
|
|
|
result.xcoord = op1.xcoord * scale;
|
|
result.ycoord = op1.ycoord * scale;
|
|
return result;
|
|
}
|
|
|
|
|
|
inline FCOORD operator *( //scalar multiply
|
|
float scale,
|
|
const FCOORD &op1 //operands
|
|
) {
|
|
FCOORD result; //output
|
|
|
|
result.xcoord = op1.xcoord * scale;
|
|
result.ycoord = op1.ycoord * scale;
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator*=
|
|
*
|
|
* Scalar multiply of an FCOORD.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD &
|
|
operator*= ( //scalar multiply
|
|
FCOORD & op1, //operands
|
|
float scale) {
|
|
op1.xcoord *= scale;
|
|
op1.ycoord *= scale;
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator/
|
|
*
|
|
* Scalar divide of an FCOORD.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD
|
|
operator/ ( //scalar divide
|
|
const FCOORD & op1, //operands
|
|
float scale) {
|
|
FCOORD result; //output
|
|
|
|
if (scale != 0) {
|
|
result.xcoord = op1.xcoord / scale;
|
|
result.ycoord = op1.ycoord / scale;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* operator/=
|
|
*
|
|
* Scalar divide of an FCOORD.
|
|
**********************************************************************/
|
|
|
|
inline FCOORD &
|
|
operator/= ( //scalar divide
|
|
FCOORD & op1, //operands
|
|
float scale) {
|
|
if (scale != 0) {
|
|
op1.xcoord /= scale;
|
|
op1.ycoord /= scale;
|
|
}
|
|
return op1;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* rotate
|
|
*
|
|
* Rotate an FCOORD by the given (normalized) (cos,sin) vector.
|
|
**********************************************************************/
|
|
|
|
inline void FCOORD::rotate( //rotate by vector
|
|
const FCOORD vec) {
|
|
float tmp;
|
|
|
|
tmp = xcoord * vec.x () - ycoord * vec.y ();
|
|
ycoord = ycoord * vec.x () + xcoord * vec.y ();
|
|
xcoord = tmp;
|
|
}
|
|
|
|
inline void FCOORD::unrotate(const FCOORD& vec) {
|
|
rotate(FCOORD(vec.x(), -vec.y()));
|
|
}
|
|
|
|
#endif
|