org.deegree.ogcwebservices.wpvs
Class DefaultGetViewHandler

java.lang.Object
  org.deegree.ogcwebservices.wpvs.GetViewHandler
      org.deegree.ogcwebservices.wpvs.DefaultGetViewHandler

public class DefaultGetViewHandler
extends GetViewHandler

Default handler for WPVS GetView requests. This Class is the central position where the GetView request lands the configured Datasources are gathered and the scene is put together.

Author:

Ugo Taddei, last edited by: $Author: rbezema $ $Revision: 19665 $, $Date: 2009-09-16 10:11:29 +0200 (Mi, 16. Sep 2009) $

Constructor Summary

DefaultGetViewHandler(WPVService owner)
Constructor for DefaultGetViewHandler.

Method Summary

OffScreenWPVSRenderer	getRenderer()
protected double	getTerrainHeightAboveSeaLevel(double eyePositionX, double eyePositionY, double eyePositionZ) Should return the height of the terrain above the sealevel.
protected double	getTerrainHeightAboveSeaLevel(javax.vecmath.Point3d eyePosition) Should return the height of the terrain above the sealevel.
WPVSScene	getTheScene()
GetViewResponse	handleRequest(GetView request) This Method handles a clients GetView request by creating the appropriate (configured) Datasources, the ResolutionStripes, the requeststripes (which are actually axisalligned Resolutionsripes) and finally putting them all together in a java3d scene.
BufferedImage	renderScene() Renders the scene and the resulting image.

Methods inherited from class org.deegree.ogcwebservices.wpvs.GetViewHandler

getOwner

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultGetViewHandler

public DefaultGetViewHandler(WPVService owner)

Constructor for DefaultGetViewHandler.

Parameters:

owner - the service creating this handler

Method Detail

handleRequest

public GetViewResponse handleRequest(GetView request)
                              throws OGCWebServiceException

This Method handles a clients GetView request by creating the appropriate (configured) Datasources, the ResolutionStripes, the requeststripes (which are actually axisalligned Resolutionsripes) and finally putting them all together in a java3d scene. The creation of the Shape3D Objects (by requesting the ResolutionStripe relevant Datasources) is done in separate Threads for each ResolutionStripe (which is in conflict with the deegree styleguides) using the Executor class.

Specified by:

handleRequest in class GetViewHandler

Parameters:

request - te WPVS GetView request

Returns:

an instance of GetViewResponse

Throws:

OGCWebServiceException

See Also:

GetViewHandler.handleRequest(org.deegree.ogcwebservices.wpvs.operation.GetView)

getTerrainHeightAboveSeaLevel

protected double getTerrainHeightAboveSeaLevel(double eyePositionX,
                                               double eyePositionY,
                                               double eyePositionZ)

Should return the height of the terrain above the sealevel. TODO just returns a constant value, i.e. the configured MinimalTerrainHeight.

Parameters:

eyePositionX - to find the height of the sealevel for (not used yet)

eyePositionY - to find the height of the sealevel for (not used yet)

eyePositionZ - to find the height of the sealevel for (not used yet)

Returns:

the height above the seaLevel.

getTerrainHeightAboveSeaLevel

protected double getTerrainHeightAboveSeaLevel(javax.vecmath.Point3d eyePosition)

Should return the height of the terrain above the sealevel. TODO just returns a constant value, i.e. the configured MinimalTerrainHeight.

Parameters:

eyePosition - to find the height of the sealevel for (not used yet)

Returns:

the height above the seaLevel.

renderScene

public BufferedImage renderScene()

Renders the scene and the resulting image.

Returns:

a new image representing a screen shot of the scene

getTheScene

public WPVSScene getTheScene()

Returns:

Returns the generated scene for this request... handy for debugging.

getRenderer

public OffScreenWPVSRenderer getRenderer()

Returns:

the scene renderer.