Package com.itextpdf.kernel.pdf.function

Class PdfType2Function

java.lang.Object
com.itextpdf.kernel.pdf.PdfObjectWrapper
com.itextpdf.kernel.pdf.function.AbstractPdfFunction<PdfDictionary>
com.itextpdf.kernel.pdf.function.PdfType2Function
All Implemented Interfaces:
IPdfFunction
public class PdfType2Function extends AbstractPdfFunction<PdfDictionary>
This class represents Pdf type 2 function that defines an exponential interpolation of one input value to n output values.

For more info see ISO 32000-1, section 7.10.3 "Type 2 (Exponential Interpolation) Functions".

  • Constructor Details

    • PdfType2Function

      public PdfType2Function (PdfDictionary dict)
      Instantiates a new PdfType2Function instance based on passed PdfDictionary instance.
      Parameters:
      dict - the function dictionary

    • PdfType2Function

      public PdfType2Function (double[] domain, double[] range, double[] c0, double[] c1, double n)

    • PdfType2Function

      public PdfType2Function (float[] domain, float[] range, float[] c0, float[] c1, double n)

  • Method Details

    • calculate

      public double[] calculate (double[] input)
      Description copied from interface: IPdfFunction
      Calculates one set of input components to one set of output components.
      Parameters:
      input - The input values size must contain IPdfFunction.getInputSize() items
      Returns:
      an array the size of IPdfFunction.getOutputSize() items containing the result

    • getOutputSize

      public final int getOutputSize()
      Gets output size of function.

      If Range field is absent, the size of C0 array will be returned.

      Specified by:
      getOutputSize in interface IPdfFunction
      Overrides:
      getOutputSize in class AbstractPdfFunction<PdfDictionary>
      Returns:
      output size of function

    • getC0

      public final double[] getC0()
      Gets values of C0 array.
      Returns:
      the values of C0 array

    • setC0

      public final void setC0 (double[] value)
      Sets values of C0 array.
      Parameters:
      value - the values of C0 array

    • getC1

      public final double[] getC1()
      Gets values of C1 array.
      Returns:
      the values of C1 array

    • setC1

      public final void setC1 (double[] value)
      Sets values of C1 array.
      Parameters:
      value - the values of C1 array

    • getN

      public final double getN()
      Gets value of N field.
      Returns:
      the value of N field

    • setN

      public final void setN (double value)
      sets value of N field.
      Parameters:
      value - the value of N field