Package org.apache.sis.image

Class PositionalConsistencyImage

java.lang.Object

org.apache.sis.image.PlanarImage

org.apache.sis.image.ComputedImage

org.apache.sis.image.SourceAlignedImage

org.apache.sis.image.PositionalConsistencyImage

All Implemented Interfaces:

RenderedImage, Disposable

final class PositionalConsistencyImage
extends SourceAlignedImage

Estimation of positional error for each pixel in an image computed by ResampledImage. This is the implementation of ResampledImage.POSITIONAL_CONSISTENCY_KEY property value.

Since:

1.1

Version:

1.3

Field Summary

Fields

Modifier and Type	Field	Description
private static final String[]	ADDED_PROPERTIES	Properties added by this image, no matter if present in source image or not.
private static final Set<String>	INHERITED_PROPERTIES	Properties inherited from the source image.
private final org.opengis.referencing.operation.MathTransform	toSource	A copy of ResampledImage.toSourceSupport with the support translation removed.
private final org.opengis.referencing.operation.MathTransform	toTarget	The inverse of ResampledImage.toSource.

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

POSITIONAL_PROPERTIES

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

sampleModel, SOURCE_PADDING_KEY

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

GRID_GEOMETRY_KEY, MASK_KEY, POSITIONAL_ACCURACY_KEY, SAMPLE_RESOLUTIONS_KEY, STATISTICS_KEY

Constructor Summary

Constructors

Constructor	Description
PositionalConsistencyImage(ResampledImage image, org.opengis.referencing.operation.MathTransform toSource)	Creates a new instance for the given image.

Method Summary

Modifier and Type	Method	Description
protected Raster	computeTile(int tileX, int tileY, WritableRaster tile)	Invoked when a tile need to be computed or updated.
boolean	equals(Object object)	Compares the given object with this image for equality.
Object	getProperty(String key)	Gets a property from this image.
String[]	getPropertyNames()	Returns the names of all recognized properties.
int	hashCode()	Returns a hash code value for this image.

Methods inherited from class org.apache.sis.image.SourceAlignedImage

filterPropertyNames, getColorModel, getHeight, getMinTileX, getMinTileY, getMinX, getMinY, getNumXTiles, getNumYTiles, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, getWidth, prefetch

Methods inherited from class org.apache.sis.image.ComputedImage

clearErrorFlags, createTile, dispose, equalsBase, getDestination, getSampleModel, getSource, getSource, getSources, getTile, getWritableTileIndices, hashCodeBase, hasTileWriters, isTileWritable, markDirtyTiles, markTileWritable, reference, setDestination, sourceTileChanged

Methods inherited from class org.apache.sis.image.PlanarImage

copyData, getBounds, getData, getData, toString, verify

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

INHERITED_PROPERTIES

private static final Set<String> INHERITED_PROPERTIES

Properties inherited from the source image. Must be consistent with the switch case statement delegating to the source image in getProperty(String).

See Also:

• getPropertyNames()

ADDED_PROPERTIES

private static final String[] ADDED_PROPERTIES

Properties added by this image, no matter if present in source image or not. Must be consistent with the switch case statement doing its own calculation in getProperty(String).

See Also:

• getPropertyNames()

toSource

private final org.opengis.referencing.operation.MathTransform toSource

A copy of ResampledImage.toSourceSupport with the support translation removed. The result may be different than ResampledImage.toSource if the transform has been replaced by ResamplingGrid.

toTarget

private final org.opengis.referencing.operation.MathTransform toTarget

The inverse of ResampledImage.toSource. Should not be concatenated with toSource because optimizations applied by Apache SIS during concatenations may hide the errors that we want to visualize.

Constructor Details

PositionalConsistencyImage

PositionalConsistencyImage(ResampledImage image,
 org.opengis.referencing.operation.MathTransform toSource)
                    throws org.opengis.referencing.operation.TransformException

Creates a new instance for the given image.

Throws:

org.opengis.referencing.operation.TransformException

Method Details

getProperty

public Object getProperty(String key)

Gets a property from this image.

Specified by:

getProperty in interface RenderedImage

Overrides:

getProperty in class PlanarImage

Parameters:

key - the name of the property to get.

Returns:

the property value, or Image.UndefinedProperty if none.

getPropertyNames

public String[] getPropertyNames()

Returns the names of all recognized properties.

Specified by:

getPropertyNames in interface RenderedImage

Overrides:

getPropertyNames in class PlanarImage

Returns:

names of all recognized properties.

computeTile

protected Raster computeTile(int tileX,
 int tileY,
 WritableRaster tile)
                      throws org.opengis.referencing.operation.TransformException

Invoked when a tile need to be computed or updated.

Specified by:

computeTile in class ComputedImage

Parameters:

tileX - the column index of the tile to compute.

tileY - the row index of the tile to compute.

tile - if the tile already exists but needs to be updated, the tile to update. Otherwise null.

Returns:

computed tile for the given indices.

Throws:

org.opengis.referencing.operation.TransformException - if an error occurred while computing pixel coordinates.

hashCode

public int hashCode()

Returns a hash code value for this image.

Overrides:

hashCode in class SourceAlignedImage

equals

public boolean equals(Object object)

Compares the given object with this image for equality.

Overrides:

equals in class SourceAlignedImage