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425d593ebe
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk/trunk@2 d0cd1f9f-072b-0410-8dd7-cf729c803f20
134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
/**********************************************************************
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* File: genblob.cpp (Formerly gblob.c)
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* Description: Generic Blob processing routines
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* Author: Phil Cheatle
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* Created: Mon Nov 25 10:53:26 GMT 1991
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*
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* (C) Copyright 1991, Hewlett-Packard Ltd.
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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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#include "mfcpch.h"
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#include "stepblob.h"
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#include "polyblob.h"
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#include "genblob.h"
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/**********************************************************************
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* blob_comparator()
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*
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* Blob comparator used to sort a blob list so that blobs are in increasing
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* order of left edge.
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**********************************************************************/
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int blob_comparator( //sort blobs
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const void *blob1p, //ptr to ptr to blob1
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const void *blob2p //ptr to ptr to blob2
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) {
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PBLOB *blob1 = *(PBLOB **) blob1p;
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PBLOB *blob2 = *(PBLOB **) blob2p;
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return blob1->bounding_box ().left () - blob2->bounding_box ().left ();
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}
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/**********************************************************************
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* c_blob_comparator()
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*
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* Blob comparator used to sort a blob list so that blobs are in increasing
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* order of left edge.
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**********************************************************************/
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int c_blob_comparator( //sort blobs
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const void *blob1p, //ptr to ptr to blob1
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const void *blob2p //ptr to ptr to blob2
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) {
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C_BLOB *blob1 = *(C_BLOB **) blob1p;
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C_BLOB *blob2 = *(C_BLOB **) blob2p;
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return blob1->bounding_box ().left () - blob2->bounding_box ().left ();
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}
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/**********************************************************************
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* gblob_bounding_box()
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*
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* Return the bounding box of a generic blob.
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**********************************************************************/
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BOX gblob_bounding_box( //Get bounding box
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PBLOB *blob, //generic blob
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BOOL8 polygonal //is blob polygonal?
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) {
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if (polygonal)
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return blob->bounding_box ();
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else
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return ((C_BLOB *) blob)->bounding_box ();
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}
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/**********************************************************************
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* gblob_sort_list()
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*
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* Sort a generic blob list into order of bounding box left edge
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**********************************************************************/
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void gblob_sort_list( //Sort a gblob list
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PBLOB_LIST *blob_list, //generic blob list
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BOOL8 polygonal //is list polygonal?
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) {
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PBLOB_IT b_it;
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C_BLOB_IT c_it;
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if (polygonal) {
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b_it.set_to_list (blob_list);
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b_it.sort (blob_comparator);
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}
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else {
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c_it.set_to_list ((C_BLOB_LIST *) blob_list);
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c_it.sort (c_blob_comparator);
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}
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}
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/**********************************************************************
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* gblob_out_list()
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*
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* Return the generic outline list of a generic blob.
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**********************************************************************/
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OUTLINE_LIST *gblob_out_list( //Get outline list
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PBLOB *blob, //generic blob
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BOOL8 polygonal //is blob polygonal?
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) {
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if (polygonal)
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return blob->out_list ();
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else
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return (OUTLINE_LIST *) ((C_BLOB *) blob)->out_list ();
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}
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/**********************************************************************
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* goutline_bounding_box()
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*
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* Return the bounding box of a generic outline.
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**********************************************************************/
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BOX goutline_bounding_box( //Get bounding box
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OUTLINE *outline, //generic outline
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BOOL8 polygonal //is outline polygonal?
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) {
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if (polygonal)
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return outline->bounding_box ();
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else
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return ((C_OUTLINE *) outline)->bounding_box ();
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}
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