de.micromata.opengis.kml.v_2_2_0

Class ImagePyramid

java.lang.Object

de.micromata.opengis.kml.v_2_2_0.AbstractObject

de.micromata.opengis.kml.v_2_2_0.ImagePyramid

All Implemented Interfaces:

Cloneable

public class ImagePyramid
extends AbstractObject
implements Cloneable

For very large images, you'll need to construct an image pyramid, which is a hierarchical set of images, each of which is an increasingly lower resolution version of the original image. Each image in the pyramid is subdivided into tiles, so that only the portions in view need to be loaded. Google Earth calculates the current viewpoint and loads the tiles that are appropriate to the user's distance from the image. As the viewpoint moves closer to the PhotoOverlay, Google Earth loads higher resolution tiles. Since all the pixels in the original image can't be viewed on the screen at once, this preprocessing allows Google Earth to achieve maximum performance because it loads only the portions of the image that are in view, and only the pixel details that can be discerned by the user at the current viewpoint.

When you specify an image pyramid, you also modify the in the element to include specifications for which tiles to load.

Field Summary

Fields

Modifier and Type	Field and Description
protected GridOrigin	gridOrigin GridOrigin lowerLeft, upperLeft See Also: See
protected List<AbstractObject>	imagePyramidObjectExtension
protected List<Object>	imagePyramidSimpleExtension
protected int	maxHeight Height in pixels of the original image.
protected int	maxWidth Width in pixels of the original image.
protected int	tileSize Size of the tiles, in pixels.

Fields inherited from class de.micromata.opengis.kml.v_2_2_0.AbstractObject

id, objectSimpleExtension, targetId

Constructor Summary

Constructors

Constructor and Description
ImagePyramid()

Method Summary

Methods

Modifier and Type	Method and Description
ImagePyramid	addToImagePyramidObjectExtension(AbstractObject imagePyramidObjectExtension) add a value to the imagePyramidObjectExtension property collection
ImagePyramid	addToImagePyramidSimpleExtension(Object imagePyramidSimpleExtension) add a value to the imagePyramidSimpleExtension property collection
ImagePyramid	addToObjectSimpleExtension(Object objectSimpleExtension) add a value to the objectSimpleExtension property collection
ImagePyramid	clone()
boolean	equals(Object obj)
GridOrigin	getGridOrigin()
List<AbstractObject>	getImagePyramidObjectExtension()
List<Object>	getImagePyramidSimpleExtension()
int	getMaxHeight()
int	getMaxWidth()
int	getTileSize()
int	hashCode()
void	setGridOrigin(GridOrigin value)
void	setImagePyramidObjectExtension(List<AbstractObject> imagePyramidObjectExtension)
void	setImagePyramidSimpleExtension(List<Object> imagePyramidSimpleExtension)
void	setMaxHeight(int value)
void	setMaxWidth(int value)
void	setObjectSimpleExtension(List<Object> objectSimpleExtension)
void	setTileSize(int value)
ImagePyramid	withGridOrigin(GridOrigin gridOrigin) fluent setter
ImagePyramid	withId(String id) fluent setter
ImagePyramid	withImagePyramidObjectExtension(List<AbstractObject> imagePyramidObjectExtension) fluent setter
ImagePyramid	withImagePyramidSimpleExtension(List<Object> imagePyramidSimpleExtension) fluent setter
ImagePyramid	withMaxHeight(int maxHeight) fluent setter
ImagePyramid	withMaxWidth(int maxWidth) fluent setter
ImagePyramid	withObjectSimpleExtension(List<Object> objectSimpleExtension) fluent setter
ImagePyramid	withTargetId(String targetId) fluent setter
ImagePyramid	withTileSize(int tileSize) fluent setter

Methods inherited from class de.micromata.opengis.kml.v_2_2_0.AbstractObject

getId, getObjectSimpleExtension, getTargetId, setId, setTargetId

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

tileSize

protected int tileSize

Size of the tiles, in pixels. Tiles must be square, and must be a power of 2. A tile size of 256 (the default) or 512 is recommended. The original image is divided into tiles of this size, at varying resolutions.

maxWidth

protected int maxWidth

Width in pixels of the original image.

maxHeight

protected int maxHeight

Height in pixels of the original image.

gridOrigin

protected GridOrigin gridOrigin

GridOrigin

lowerLeft, upperLeft

See Also: See

imagePyramidSimpleExtension

protected List<Object> imagePyramidSimpleExtension

imagePyramidObjectExtension

protected List<AbstractObject> imagePyramidObjectExtension