Package org.esa.snap.core.dataop.resamp

Class BilinearInterpolationResampling

java.lang.Object

org.esa.snap.core.dataop.resamp.BilinearInterpolationResampling

All Implemented Interfaces:

Resampling

public final class BilinearInterpolationResampling
extends Object
implements Resampling

Nested Class Summary

Nested classes/interfaces inherited from interface org.esa.snap.core.dataop.resamp.Resampling

Resampling.Index, Resampling.Raster

Field Summary

Fields inherited from interface org.esa.snap.core.dataop.resamp.Resampling

BICUBIC_INTERPOLATION, BILINEAR_INTERPOLATION, BISINC_11_POINT_INTERPOLATION, BISINC_21_POINT_INTERPOLATION, BISINC_5_POINT_INTERPOLATION, CUBIC_CONVOLUTION, NEAREST_NEIGHBOUR

Constructor Summary

Constructors

Constructor	Description
BilinearInterpolationResampling()

Method Summary

Modifier and Type	Method	Description
final void	computeIndex(double x, double y, int width, int height, Resampling.Index index)	Computes the index's properties for the given pixel coordinate.
final Resampling.Index	createIndex()	Factory method which creates an appropriate index for raster access.
String	getName()	Gets a unique identifier for this resampling method, e.g.
final double	resample(Resampling.Raster raster, Resampling.Index index)	Performs the actual resampling operation.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.esa.snap.core.dataop.resamp.Resampling

computeCornerBasedIndex, getKernelSize

Constructor Details

BilinearInterpolationResampling

public BilinearInterpolationResampling()

Method Details

getName

public String getName()

Description copied from interface: Resampling

Gets a unique identifier for this resampling method, e.g. "BILINEAR_INTERPOLATION".

Specified by:

getName in interface Resampling

Returns:

a unique name

createIndex

public final Resampling.Index createIndex()

Description copied from interface: Resampling

Factory method which creates an appropriate index for raster access.

Specified by:

createIndex in interface Resampling

Returns:

an appropriate index, never null

computeIndex

public final void computeIndex(double x,
 double y,
 int width,
 int height,
 Resampling.Index index)

Description copied from interface: Resampling

Computes the index's properties for the given pixel coordinate.

Specified by:

computeIndex in interface Resampling

Parameters:

x - the raster's x coordinate

y - the raster's y coordinate

width - the raster's width

height - the raster's height

index - the index object to which the results are to be assigned

resample

public final double resample(Resampling.Raster raster,
 Resampling.Index index)
                      throws Exception

Description copied from interface: Resampling

Performs the actual resampling operation. If a sample value could not be computed at the given index, e.g. in case of missing data, the method returns the special value Float.NaN.

Specified by:

resample in interface Resampling

Parameters:

raster - the raster

index - the index, must be computed using the Resampling.computeIndex(double, double, int, int, org.esa.snap.core.dataop.resamp.Resampling.Index) method

Returns:

either the re-sampled sample value or Float.NaN.

Throws:

Exception - if a non-runtime error occurs, e.g I/O error

toString

public String toString()

Overrides:

toString in class Object