mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-11-24 02:59:07 +08:00
ff3d550c05
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@219 d0cd1f9f-072b-0410-8dd7-cf729c803f20
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/******************************************************************************
|
|
** Filename: xform2d.h
|
|
** Purpose: Definitions for using 2D point transformation library
|
|
** Author: Dan Johnson
|
|
** History: Fri Sep 22 09:57:08 1989, DSJ, Created.
|
|
**
|
|
** (c) Copyright Hewlett-Packard Company, 1988.
|
|
** 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 XFORM2D_H
|
|
#define XFORM2D_H
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Include Files and Type Defines
|
|
----------------------------------------------------------------------------**/
|
|
#include "fpoint.h"
|
|
|
|
typedef struct
|
|
{
|
|
FLOAT32 a, b, c, d, tx, ty;
|
|
}
|
|
|
|
|
|
MATRIX_2D, *MATRIX_2D_PTR;
|
|
|
|
/**----------------------------------------------------------------------------
|
|
Public Function Prototypes
|
|
----------------------------------------------------------------------------**/
|
|
|
|
void InitMatrix(MATRIX_2D *M);
|
|
void CopyMatrix(MATRIX_2D *A, MATRIX_2D *B);
|
|
|
|
/* matrix scaling, translation, rotation, mirroring, etc.*/
|
|
void TranslateMatrix(MATRIX_2D *M, FLOAT32 X, FLOAT32 Y);
|
|
void ScaleMatrix(MATRIX_2D *M, FLOAT32 X, FLOAT32 Y);
|
|
|
|
void MirrorMatrixInX(MATRIX_2D *M);
|
|
void MirrorMatrixInY(MATRIX_2D *M);
|
|
void MirrorMatrixInXY(MATRIX_2D *M);
|
|
|
|
/* using a matrix to map points*/
|
|
FLOAT32 MapX(MATRIX_2D *M, FLOAT32 X, FLOAT32 Y);
|
|
|
|
FLOAT32 MapY(MATRIX_2D *M, FLOAT32 X, FLOAT32 Y);
|
|
|
|
void MapPoint(MATRIX_2D *M, FPOINT &A, FPOINT &B);
|
|
|
|
FLOAT32 MapDx(MATRIX_2D *M, FLOAT32 DX, FLOAT32 DY);
|
|
FLOAT32 MapDy(MATRIX_2D M, FLOAT32 DX, FLOAT32 DY);
|
|
|
|
void RotateMatrix(MATRIX_2D_PTR Matrix, FLOAT32 Angle);
|
|
#endif
|