Examples of com.sun.pdfview.function.PDFFunction

com.sun.pdfview.function.PDFFunction
PDF Functions are defined in the reference as Section 3.9.

A PDF function maps some set of m inputs into some set of n outputs. There are 4 types of functions:
- Type 0: Sampled functions. (PDF 1.2)
  A sampled function (type 0) uses a table of sample values to define the function. Various techniques are used to interpolate values between the sample values (see Section 3.9.1, "Type 0 (Sampled) Functions").
- Type 2: Exponential Interpolation. (PDF 1.3)
  An exponential interpolation function (type 2) defines a set of coefficients for an exponential function (see Section 3.9.2, "Type 2 (Exponential Interpolation) Functions").
- Type 3: Stitching functions. (PDF 1.3)
  A stitching function (type 3) is a combination of other functions, partitioned across a domain (see Section 3.9.3, "Type 3 (Stitching) Functions").
- Type 4: Postscript calculations. (PDF 1.3)
  A PostScript calculator function (type 4) uses operators from the PostScript language to describe an arithmetic expression (see Section 3.9.4, "Type 4 (PostScript Calculator) Functions").
The function interface contains a single method, calculate which takes an array of m floats an interprets them into an array of n floats.
PDFFunctions do not have accessible constructors. Instead, use the static getFunction() method to read a functions from a PDF Object.

            ByteArrayInputStream bais = new ByteArrayInputStream(ary[1].getStream());
            ICC_Profile profile = ICC_Profile.getInstance(bais);
            value = new PDFColorSpace(new ICC_ColorSpace(profile));
        } else if (name.equals("Separation") || name.equals("DeviceN")) {
            PDFColorSpace alternate = getColorSpace(ary[2], resources);
            PDFFunction function = PDFFunction.getFunction(ary[3]);


            value = new AlternateColorSpace(alternate, function);
        } else if (name.equals("Indexed") || name.equals("I")) {
            /**
             * 4.5.5 [/Indexed baseColor hival lookup]

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        }
        
        public Raster getRaster(int x, int y, int w, int h) {
            ColorSpace cs = getColorModel().getColorSpace();
            
            PDFFunction functions[] = getFunctions();
            int numComponents = cs.getNumComponents();


            float x0 = (float) start.getX();
            float x1 = (float) end.getX();
            float y0 = (float) start.getY();

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        public Raster getRaster(int x, int y, int w, int h) {
          ColorSpace cs = getColorModel().getColorSpace();
            PDFColorSpace shadeCSpace = getColorSpace();




          PDFFunction functions[] = getFunctions();
          int numComponents = cs.getNumComponents();


          float x0 = (float) this.start.getX();
          float y0 = (float) this.start.getY();

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        @Override
    public Raster getRaster(int x, int y, int w, int h) {
            ColorSpace cs = getColorModel().getColorSpace();
            PDFColorSpace shadeCSpace = getColorSpace();
            
            PDFFunction functions[] = getFunctions();
            
            int numComponents = cs.getNumComponents();


            float[] c1 = new float[2];

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            ByteArrayInputStream bais = new ByteArrayInputStream(ary[1].getStream());
            ICC_Profile profile = ICC_Profile.getInstance(bais);
            value = new PDFColorSpace(new ICC_ColorSpace(profile));
        } else if (name.equals("Separation") || name.equals("DeviceN")) {
            PDFColorSpace alternate = getColorSpace(ary[2], resources);
            PDFFunction function = PDFFunction.getFunction(ary[3]);


            value = new AlternateColorSpace(alternate, function);
        } else if (name.equals("Indexed") || name.equals("I")) {
            /**
             * 4.5.5 [/Indexed baseColor hival lookup]

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com.sun.pdfview.colorspace.PDFColorSpace

com.sun.pdfview.pattern.ShaderType2$Type2PaintContext

com.sun.pdfview.pattern.ShaderType3$Type3PaintContext

com.sun.pdfview.PDFObject

com.sun.pdfview.PDFParseException

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