mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-11-27 20:59:36 +08:00
64 lines
2.4 KiB
C++
64 lines
2.4 KiB
C++
/* -*-C-*-
|
|
********************************************************************************
|
|
*
|
|
* File: vecfuncs.c (Formerly vecfuncs.c)
|
|
* Description: Blob definition
|
|
* Author: Mark Seaman, OCR Technology
|
|
* Created: Fri Oct 27 15:39:52 1989
|
|
* Modified: Tue Jul 9 17:44:12 1991 (Mark Seaman) marks@hpgrlt
|
|
* Language: C
|
|
* Package: N/A
|
|
* Status: Experimental (Do Not Distribute)
|
|
*
|
|
* (c) Copyright 1989, Hewlett-Packard Company.
|
|
** 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.
|
|
*
|
|
********************************************************************************
|
|
* Revision 5.1 89/07/27 11:47:50 11:47:50 ray ()
|
|
* Added ratings access methods.
|
|
* This version ready for independent development.
|
|
*/
|
|
/*----------------------------------------------------------------------
|
|
I n c l u d e s
|
|
----------------------------------------------------------------------*/
|
|
#include "vecfuncs.h"
|
|
#include "blobs.h"
|
|
|
|
/*----------------------------------------------------------------------
|
|
F u n c t i o n s
|
|
----------------------------------------------------------------------*/
|
|
/**********************************************************************
|
|
* direction
|
|
*
|
|
* Show if the line is going in the positive or negative X direction.
|
|
**********************************************************************/
|
|
int direction(EDGEPT *point) {
|
|
int dir; /** direction to return **/
|
|
EDGEPT *prev; /** prev point **/
|
|
EDGEPT *next; /** next point **/
|
|
|
|
dir = 0;
|
|
prev = point->prev;
|
|
next = point->next;
|
|
|
|
if (((prev->pos.x <= point->pos.x) &&
|
|
(point->pos.x < next->pos.x)) ||
|
|
((prev->pos.x < point->pos.x) && (point->pos.x <= next->pos.x)))
|
|
dir = 1;
|
|
|
|
if (((prev->pos.x >= point->pos.x) &&
|
|
(point->pos.x > next->pos.x)) ||
|
|
((prev->pos.x > point->pos.x) && (point->pos.x >= next->pos.x)))
|
|
dir = -1;
|
|
|
|
return dir;
|
|
}
|