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java.lang.Objectorg.apache.pdfbox.pdmodel.common.function.PDFunction
org.apache.pdfbox.pdmodel.common.function.PDFunctionType4
public class PDFunctionType4
This class represents a type 4 function in a PDF document.
See section 3.9.4 of the PDF 1.4 Reference.
Constructor Summary | |
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PDFunctionType4(COSBase functionStream)
Constructor. |
Method Summary | |
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float[] |
eval(float[] input)
Evaluates the function at the given input. |
int |
getFunctionType()
Returns the function type. |
Methods inherited from class org.apache.pdfbox.pdmodel.common.function.PDFunction |
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clipToRange, clipToRange, create, eval, getCOSObject, getDictionary, getDomainForInput, getNumberOfInputParameters, getNumberOfOutputParameters, getPDStream, getRangeForOutput, getRangeValues, interpolate, setDomainValues, setRangeValues |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PDFunctionType4(COSBase functionStream) throws IOException
functionStream
- The function stream.
IOException
- if an I/O error occurs while reading the functionMethod Detail |
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public int getFunctionType()
getFunctionType
in class PDFunction
public float[] eval(float[] input) throws IOException
eval
in class PDFunction
input
- The array of input values for the function.
In many cases will be an array of a single value, but not always.
IOException
- an IOExcpetion is thrown if something went wrong processing the function.
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