com.orsonpdf

Class Function

java.lang.Object

com.orsonpdf.PDFObject

com.orsonpdf.Function

Direct Known Subclasses:

ExponentialInterpolationFunction, StitchingFunction

public abstract class Function
extends PDFObject

A PDF function object. For the PDFGraphics2D class, only EXPONENTIAL_INTERPOLATION and STITCHING are used so far (to support gradient paint implementations).

Field Summary

Fields

Modifier and Type	Field and Description
protected Dictionary	dictionary The function dictionary.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Function(int number, FunctionType functionType) Creates a new function.

Method Summary

Modifier and Type	Method and Description
double[]	getDomain() Returns the function domain.
FunctionType	getFunctionType() Returns the function type.
byte[]	getObjectBytes() Returns the bytes that go between the 'obj' and 'endobj' in the PDF output for this object.
void	setDomain(double[] domain) Sets the domain for the function.

Methods inherited from class com.orsonpdf.PDFObject

getGeneration, getNumber, getReference, toPDFBytes

Methods inherited from class java.lang.Object

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

Field Detail

dictionary

protected Dictionary dictionary

The function dictionary.

Constructor Detail

Function

protected Function(int number,
                   FunctionType functionType)

Creates a new function.

Parameters:

number - the PDF object number.

functionType - the function type (null not permitted).

Method Detail

getFunctionType

public FunctionType getFunctionType()

Returns the function type.

Returns:

The function type (never null).

getDomain

public double[] getDomain()

Returns the function domain.

Returns:

The function domain (never null).

setDomain

public void setDomain(double[] domain)

Sets the domain for the function.

Parameters:

domain - the domain (null not permitted).

getObjectBytes

public byte[] getObjectBytes()

Returns the bytes that go between the 'obj' and 'endobj' in the PDF output for this object.

Specified by:

getObjectBytes in class PDFObject

Returns:

A byte array.