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a18816f839
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@441 d0cd1f9f-072b-0410-8dd7-cf729c803f20
137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
/* -*-C-*-
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********************************************************************************
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*
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* File: seam.h (Formerly seam.h)
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* Description:
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* Author: Mark Seaman, SW Productivity
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* Created: Fri Oct 16 14:37:00 1987
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* Modified: Thu May 16 17:05:52 1991 (Mark Seaman) marks@hpgrlt
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* Language: C
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* Package: N/A
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* Status: Reusable Software Component
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*
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* (c) Copyright 1987, Hewlett-Packard Company.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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*********************************************************************************/
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#ifndef SEAM_H
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#define SEAM_H
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/*----------------------------------------------------------------------
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I n c l u d e s
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----------------------------------------------------------------------*/
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#include "split.h"
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#include "tessarray.h"
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/*----------------------------------------------------------------------
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T y p e s
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----------------------------------------------------------------------*/
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typedef float PRIORITY; /* PRIORITY */
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typedef struct seam_record
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{ /* SEAM */
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PRIORITY priority;
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inT8 widthp;
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inT8 widthn;
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inT16 location;
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SPLIT *split1;
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SPLIT *split2;
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SPLIT *split3;
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} SEAM;
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typedef ARRAY SEAMS; /* SEAMS */
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extern SEAM *newseam();
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/*----------------------------------------------------------------------
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M a c r o s
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----------------------------------------------------------------------*/
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/**
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* @name clone_seam
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*
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* Create a new seam record and copy the contents of this seam into it.
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*/
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#define clone_seam(dest,source) \
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if (source) { \
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(dest) = newseam (); \
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(dest)->location = (source)->location; \
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(dest)->widthp = (source)->widthp; \
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(dest)->widthn = (source)->widthn; \
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(dest)->priority = (source)->priority; \
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clone_split ((dest)->split1, (source)->split1); \
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clone_split ((dest)->split2, (source)->split2); \
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clone_split ((dest)->split3, (source)->split3); \
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} \
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else { \
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(dest) = (SEAM*) NULL; \
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} \
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/**
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* exact_point
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*
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* Return TRUE if the point positions are the exactly the same. The
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* parameters must be of type (EDGEPT*).
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*/
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#define exact_point(p1,p2) \
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(! ((p1->pos.x - p2->pos.x) || (p1->pos.y - p2->pos.y)))
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/*----------------------------------------------------------------------
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F u n c t i o n s
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----------------------------------------------------------------------*/
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bool point_in_split(SPLIT *split, EDGEPT *point1, EDGEPT *point2);
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bool point_in_seam(SEAM *seam, SPLIT *split);
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SEAMS add_seam(SEAMS seam_list, SEAM *seam);
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void combine_seams(SEAM *dest_seam, SEAM *source_seam);
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void delete_seam(void *arg); //SEAM *seam);
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void free_seam_list(SEAMS seam_list);
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bool test_insert_seam(SEAMS seam_list,
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int index,
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TBLOB *left_blob,
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TBLOB *first_blob);
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SEAMS insert_seam(SEAMS seam_list,
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int index,
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SEAM *seam,
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TBLOB *left_blob,
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TBLOB *first_blob);
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int account_splits_right(SEAM *seam, TBLOB *blob);
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int account_splits_left(SEAM *seam, TBLOB *blob, TBLOB *end_blob);
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bool find_split_in_blob(SPLIT *split, TBLOB *blob);
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SEAM *join_two_seams(SEAM *seam1, SEAM *seam2);
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SEAM *new_seam(PRIORITY priority,
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int x_location,
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SPLIT *split1,
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SPLIT *split2,
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SPLIT *split3);
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SEAMS new_seam_list();
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void print_seam(const char *label, SEAM *seam);
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void print_seams(const char *label, SEAMS seams);
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int shared_split_points(SEAM *seam1, SEAM *seam2);
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#endif
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