Package com.sun.pdfview.function
Class FunctionType3
- java.lang.Object
-
- com.sun.pdfview.function.PDFFunction
-
- com.sun.pdfview.function.FunctionType3
-
public class FunctionType3 extends PDFFunction
3.9.3 - A stitching function define a stitching of the subdomains of several 1-input functions to produce a single new 1-input function. Since the resulting stitching function is a 1-input function, the domain is given by a two-element array, [ Domain0 Domain1 ].Example 4.25 5 0 obj % Shading dictionary << /ShadingType 3 /ColorSpace /DeviceCMYK /Coords [ 0.0 0.0 0.096 0.0 0.0 1.0 00]% Concentric circles /Function 10 0 R /Extend [ true true ] >> endobj 10 0 obj % Color function << /FunctionType 3 /Domain [ 0.0 1.0 ] /Functions [ 11 0 R 12 0 R ] /Bounds [ 0.708 ] /Encode [ 1.0 0.0 0.0 1.0 ] >> endobj 11 0 obj % First subfunction << /FunctionType 2 /Domain [ 0.0 1.0 ] /C0 [ 0.929 0.357 1.000 0.298 ] /C1 [ 0.631 0.278 1.000 0.027 ] /N 1.048 >> endobj 12 0 obj % Second subfunction << /FunctionType 2 /Domain [ 0.0 1.0 ] /C0 [ 0.929 0.357 1.000 0.298 ] /C1 [ 0.941 0.400 1.000 0.102 ] /N 1.374 >> endobj
-
-
Constructor Summary
Constructors Modifier Constructor Description protected
FunctionType3()
Creates a new instance of FunctionType3
-
Method Summary
All Methods Instance Methods Concrete Methods 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 com.sun.pdfview.function.PDFFunction
calculate, calculate, getDomain, getFunction, getNumInputs, getNumOutputs, getRange, getType, setDomain, setRange
-
-
-
-
Method Detail
-
parse
protected void parse(PDFObject obj) throws java.io.IOException
Read the function information from a PDF Object.
Required entries ( Table 3.38) (3200-1:2008:7.10.4, table: 41) are:
- Functions array (Required) An array of k 1-input functions making up the stitching function. The output dimensionality of all functions must be the same, and compatible with the value of Range if Range is present.
- Domainarray (Required) A 2 element array where Domain0 is less than Domain1. This is read by the
PDFFunction
superclass.- Bounds array (Required) An array of k-1 numbers that, in combination with Domain, define the intervals to which each function from the Functions array applies. Bounds elements must be in order of increasing value, and each value must be within the domain defined by >b>Domain.
- Encode array (Required) An array of 2 * k numbers that, taken in pairs, map each subset of the domain defined by
and the Bounds array to the domain of the corresponding function. - Specified by:
parse
in classPDFFunction
- Throws:
java.io.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 classPDFFunction
- Parameters:
inputs
- an array of m input valuesoutputs
- an array of size n which will be filled with the output values, or null to return a new arrayinputOffset
- the offset into the inputs array to read fromoutputOffset
- the offset into the output array to write to
-
-