tesseract::BLOCK_LINE_IT Class Reference

rectangle iterator More...

#include <pdblock.h>

Public Member Functions
	BLOCK_LINE_IT (PDBLK *blkptr)
void	set_to_block (PDBLK *blkptr)
TDimension	get_line (TDimension y, TDimension &xext)

Detailed Description

rectangle iterator

Definition at line 156 of file pdblock.h.

Constructor & Destructor Documentation

BLOCK_LINE_IT()

tesseract::BLOCK_LINE_IT::BLOCK_LINE_IT ( PDBLK *  blkptr )

inline

constructor

Parameters

blkptr

from block

Definition at line 160 of file pdblock.h.

                               : rect_it(blkptr) {
    block = blkptr; // remember block
  }

Member Function Documentation

get_line()

TDimension tesseract::BLOCK_LINE_IT::get_line	(	TDimension	y,
		TDimension &	xext
	)

get a line

Parameters

y	line to get
xext	output extent

Definition at line 353 of file pdblock.cpp.

  {
  ICOORD bleft;  // bounding box
  ICOORD tright; // of block & rect
 
  // get block box
  block->bounding_box(bleft, tright);
  if (y < bleft.y() || y >= tright.y()) {
    //              block->print(stderr,false);
    BADBLOCKLINE.error("BLOCK_LINE_IT::get_line", ABORT, "Y=%d", y);
  }
 
  // get rectangle box
  rect_it.bounding_box(bleft, tright);
  // inside rectangle
  if (y >= bleft.y() && y < tright.y()) {
    // width of line
    xext = tright.x() - bleft.x();
    return bleft.x(); // start of line
  }
  for (rect_it.start_block(); !rect_it.cycled_rects(); rect_it.forward()) {
    // get rectangle box
    rect_it.bounding_box(bleft, tright);
    // inside rectangle
    if (y >= bleft.y() && y < tright.y()) {
      // width of line
      xext = tright.x() - bleft.x();
      return bleft.x(); // start of line
    }
  }
  LOSTBLOCKLINE.error("BLOCK_LINE_IT::get_line", ABORT, "Y=%d", y);
  return 0; // dummy to stop warning
}

set_to_block()

void tesseract::BLOCK_LINE_IT::set_to_block ( PDBLK *  blkptr )

inline

start (new) block

Parameters

blkptr

block to start

Definition at line 166 of file pdblock.h.

                                   {
    block = blkptr; // remember block
                    // set iterator
    rect_it.set_to_block(blkptr);
  }

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The documentation for this class was generated from the following files:

• /media/home/debian/src/github/tesseract-ocr/tesseract/src/ccstruct/pdblock.h
• /media/home/debian/src/github/tesseract-ocr/tesseract/src/ccstruct/pdblock.cpp