Class FunctionType4

java.lang.Object

com.sun.pdfview.function.PDFFunction

com.sun.pdfview.function.FunctionType4

public class FunctionType4
extends PDFFunction

A PostScript function is represented as a stream containing code written in a small subset of the PostScript language. This reference is taken from the (3200-1:2008:7.10.5)

http://www.adobe.com/devnet/acrobat/pdfs/adobe_supplement_iso32000.pdf

Field Summary

Fields inherited from class PDFFunction

TYPE_0, TYPE_2, TYPE_3, TYPE_4

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FunctionType4()	Creates a new instance of FunctionType4

Method Summary

Modifier and Type	Method	Description
protected void	doFunction(float[] inputs, int inputOffset, float[] outputs, int outputOffset)	Map from m input values to n output values.
protected void	parse(PDFObject obj)	Read the function information from a PDF Object

Methods inherited from class PDFFunction

calculate, calculate, getDomain, getFunction, getNumInputs, getNumOutputs, getRange, getType, setDomain, setRange

Methods inherited from class Object

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

Constructor Details

FunctionType4

protected FunctionType4()

Creates a new instance of FunctionType4

Method Details

parse

protected void parse(PDFObject obj)
              throws IOException

Read the function information from a PDF Object

Specified by:

parse in class PDFFunction

Throws:

IOException

doFunction

protected void doFunction(float[] inputs,
 int inputOffset,
 float[] outputs,
 int outputOffset)

Map from m input values to n output values. The number of inputs m must be exactly one half the size of the domain. The number of outputs should match one half the size of the range.

Specified by:

doFunction in class PDFFunction

Parameters:

inputs - an array of m input values

inputOffset - the offset into the inputs array to read from

outputs - an array of size n which will be filled with the output values, or null to return a new array

outputOffset - the offset into the output array to write to