| java.lang.Object
 com.sun.pdfview.function.PDFFunction
com.sun.pdfview.function.FunctionType0
| FunctionType0 | | public class FunctionType0 extends PDFFunction (Code) | | A sampled function maps input values to output values by interpolating
along a line or cubic between two known values.
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| Method Summary | |
| 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. | | protected int | getBitsPerSample()
| | protected float | getDecode(int i)
| | protected float | getEncode(int i)
| | protected int | getOrder()
| | protected int | getSample(int[] values, int od)
Get a component for a sample given m indices and output
dimension. | | protected int | getSize(int dimension)
| | public static float | interpolate(float x, float xmin, float xmax, float ymin, float ymax)
Perform a linear interpolation. | | protected void | parse(PDFObject obj)
| | protected void | setBitsPerSample(int bits)
| | protected void | setDecode(float[] decode)
| | protected void | setEncode(float[] encode)
| | protected void | setOrder(int order)
| | protected void | setSamples(int[][] samples)
| | protected void | setSize(int[] size)
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| CUBIC_INTERPOLATION | | final protected static int CUBIC_INTERPOLATION(Code) | | |
| LINEAR_INTERPOLATION | | final protected static int LINEAR_INTERPOLATION(Code) | | the valid interpolation methods
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| FunctionType0 | | protected FunctionType0()(Code) | | Creates a new instance of FunctionType0
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| doFunction | | protected void doFunction(float[] inputs, int inputOffset, float[] outputs, int outputOffset)(Code) | | 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.
Parameters:
inputs - an array of m input values
Parameters:
outputs - an array of size n which will be filledwith the output values, or null to return a new array |
| getBitsPerSample | | protected int getBitsPerSample()(Code) | | Get the number of bits per sample
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| getDecode | | protected float getDecode(int i)(Code) | | Get the decoding for a particular input parameter
Parameters:
i - the index into the decoding array, which has size 2 * n.the ith entry in the array has index 2i, 2i + 1 the decoding value if the decoding array is set, or the default |
| getEncode | | protected float getEncode(int i)(Code) | | Get the encoding for a particular input parameter
Parameters:
i - the index into the encoding array, which has size 2 * m.the ith entry in the array has index 2i, 2i + 1 the encoding value if the encoding array is set, or the default |
| getOrder | | protected int getOrder()(Code) | | Get the interpolation type
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| getSample | | protected int getSample(int[] values, int od)(Code) | | Get a component for a sample given m indices and output
dimension.
Parameters:
values - an array of m values determining which sampleto select
Parameters:
od - the output dimension (0 - n) to get the sample in the sample for the given values and index |
| getSize | | protected int getSize(int dimension)(Code) | | Get the size of a given input dimension
Parameters:
dimension - the input dimension to get the size of the number of samples in the given dimension |
| interpolate | | public static float interpolate(float x, float xmin, float xmax, float ymin, float ymax)(Code) | | Perform a linear interpolation. Given a value x, and two points,
(xmin, ymin), (xmax, ymax), where xmin <= x <= xmax, calculate a value
y on the line from (xmin, ymin) to (xmax, ymax).
Parameters:
x - the x value of the input
Parameters:
xmin - the minimum x value
Parameters:
ymin - the minimum y value
Parameters:
xmax - the maximum x value
Parameters:
ymax - the maximum y value the y value interpolated from the given x |
| setBitsPerSample | | protected void setBitsPerSample(int bits)(Code) | | Set the number of bits per sample
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| setDecode | | protected void setDecode(float[] decode)(Code) | | Set the decode array
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| setEncode | | protected void setEncode(float[] encode)(Code) | | Set the encode array
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| setOrder | | protected void setOrder(int order)(Code) | | Set the interpolation type
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| setSamples | | protected void setSamples(int[][] samples)(Code) | | Set the table of samples
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| setSize | | protected void setSize(int[] size)(Code) | | Set the size of all input dimensions
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