Package org.apache.sis.image

Class Visualization.InterpConvertOneBand

java.lang.Object

org.apache.sis.image.Interpolation

org.apache.sis.image.Visualization.InterpConvert

org.apache.sis.image.Visualization.InterpConvertOneBand

Enclosing class:

Visualization

private static final class Visualization.InterpConvertOneBand
extends Visualization.InterpConvert

Same as Visualization.InterpConvert optimized for the single-band case. This class uses the more efficient MathTransform1D.transform(double) method.

Field Summary

Fields

Modifier and Type	Field	Description
private final org.opengis.referencing.operation.MathTransform1D	singleConverter	Conversion from floating point values to values to store as integers in the destination image.

Fields inherited from class org.apache.sis.image.Visualization.InterpConvert

converter, interpolation

Fields inherited from class org.apache.sis.image.Interpolation

BILINEAR, LANCZOS, NEAREST

Constructor Summary

Constructors

Constructor	Description
InterpConvertOneBand(Interpolation interpolation, org.opengis.referencing.operation.MathTransform1D converter)	Creates a new object combining the given interpolation with the given conversion of sample values.

Method Summary

Modifier and Type	Method	Description
void	interpolate(DoubleBuffer source, int numBands, double xfrac, double yfrac, double[] writeTo, int writeToOffset)	Delegates to ResampledImage.interpolation, then convert sample values in all bands.

Methods inherited from class org.apache.sis.image.Visualization.InterpConvert

getSupportSize, toCompatible

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

singleConverter

private final org.opengis.referencing.operation.MathTransform1D singleConverter

Conversion from floating point values to values to store as integers in the destination image.

Constructor Details

InterpConvertOneBand

InterpConvertOneBand(Interpolation interpolation,
 org.opengis.referencing.operation.MathTransform1D converter)

Creates a new object combining the given interpolation with the given conversion of sample values.

Method Details

interpolate

public void interpolate(DoubleBuffer source,
 int numBands,
 double xfrac,
 double yfrac,
 double[] writeTo,
 int writeToOffset)

Delegates to ResampledImage.interpolation, then convert sample values in all bands.

Overrides:

interpolate in class Visualization.InterpConvert

Parameters:

source - pixel values from the source image to use for interpolation.

numBands - number of bands. This is the number of values to put in the writeTo array.

xfrac - the X subsample position, usually (but not always) in the range [0 … 1).

yfrac - the Y subsample position, usually (but not always) in the range [0 … 1).

writeTo - the array where this method shall write interpolated values.

writeToOffset - index of the first value to put in the writeTo array.