de.citec.scie.pdf

Class PreTextBlock

java.lang.Object

de.citec.scie.pdf.PreTextBlock

public class PreTextBlock
extends Object

A PreTextBlock represents a ThreadBead with some additional information. A ThreadBead is a TextBlock on a Page in a PDF document. Please note that this might look like a very useful concept to structure the page but not all PDFs use it. So it might very well be the case, that there are more text blocks on the page than there are ThreadBeads. Thus this is called a "PreTextBlock".

Author:

Benjamin Paassen - bpaassen(at)techfak.uni-bielefeld.de

Field Summary

Fields

Modifier and Type	Field and Description
Histogramm<Float>	lengthHisto
ArrayList<PreTextLine>	lines
static int	MINIMUMBLOCKSIZE
Histogramm<Float>	yDistHisto

Constructor Summary

Constructors

Constructor and Description
PreTextBlock()

Method Summary

Modifier and Type	Method and Description
void	addLine(PreTextLine line)
void	addTextPosition(org.apache.pdfbox.util.TextPosition text)
int	getSize()
ArrayList<PreTextBlock>	split() This is supposed to split a TextBlock representing a whole page into different blocks that might represent columns in a two-column text Headings Foot notes Tables and figures The document abstract etc.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

lines

public final ArrayList<PreTextLine> lines

yDistHisto

public final Histogramm<Float> yDistHisto

lengthHisto

public final Histogramm<Float> lengthHisto

MINIMUMBLOCKSIZE

public static final int MINIMUMBLOCKSIZE

See Also:

Constant Field Values

Constructor Detail

PreTextBlock

public PreTextBlock()

Method Detail

getSize

public int getSize()

addTextPosition

public void addTextPosition(org.apache.pdfbox.util.TextPosition text)

addLine

public void addLine(PreTextLine line)

split

public ArrayList<PreTextBlock> split()

This is supposed to split a TextBlock representing a whole page into different blocks that might represent

• columns in a two-column text
• Headings
• Foot notes
• Tables and figures
• The document abstract
• etc.

Returns:

a list of PreTextBlocks that are a split of this one.