org.deegree.graphics.displayelements
Class GeometryDisplayElement

java.lang.Object
  org.deegree.graphics.displayelements.AbstractDisplayElement
      org.deegree.graphics.displayelements.GeometryDisplayElement

All Implemented Interfaces:

java.io.Serializable, DisplayElement

Direct Known Subclasses:

LabelDisplayElement, LineStringDisplayElement, LocalizedDisplayElement, PointDisplayElement, PolygonDisplayElement

abstract class GeometryDisplayElement
extends AbstractDisplayElement
implements java.io.Serializable

Basic interface of all display elements that are related to a geometry (this is the common case).

Version:

$Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18 Jun 2009) $

Author:

Andreas Poth, last edited by: $Author: mschneider $

Field Summary

protected Geometry	geometry the geometry
protected Symbolizer	highlightSymbolizer the highlighted Symbolizer
protected java.lang.Object	placement The placement?
protected Symbolizer	selectedSymbolizer the selected Symbolizer
protected Symbolizer	symbolizer the symbolizer

Fields inherited from class org.deegree.graphics.displayelements.AbstractDisplayElement

feature

Constructor Summary

GeometryDisplayElement(Feature feature, Geometry geometry)
Creates a new GeometryDisplayElement object.

GeometryDisplayElement(Feature feature, Geometry geometry, Symbolizer symbolizer)
Creates a new GeometryDisplayElement object.

GeometryDisplayElement(Feature feature, Geometry geometry, Symbolizer symbolizer, Symbolizer highlightSymbolizer, Symbolizer selectedSymbolizer)
Creates a new GeometryDisplayElement object.

Method Summary

boolean	doesScaleConstraintApply(double scale) Returns if the DisplayElement should be painted at the current scale or not.
Geometry	getGeometry() returns the geometry that determines the position the DisplayElement will be rendered to
Symbolizer	getHighlightSymbolizer() returns the symbolizer that determines how the geometry will be rendered if it's highlighted
Symbolizer	getSelectedSymbolizer() returns the symbolizer that determines how the geometry will be rendered if it's selected
Symbolizer	getSymbolizer() Returns the symbolizer that determines how the geometry will be rendered.
protected Envelope	growEnvelope(Envelope env, float percent) Returns a new Envelope for the given envelope that has a border of percent * (with | height) on all sides around it (the longer side is used to determine the border size).
void	setGeometry(Geometry geometry) sets the geometry that determines the position the DisplayElement will be rendered to
void	setHighlightSymbolizer(Symbolizer rule) sets the rule that determines how the geometry will be rendered when it's highlighted
void	setPlacement(java.lang.Object o) Overwrites the default placement of the DisplayElement.
void	setSelectedSymbolizer(Symbolizer rule) sets the rule that determines how the geometry will be rendered when it's selected
void	setSymbolizer(Symbolizer symbolizer) sets the rules that determines how the geometry will be rendered

Methods inherited from class org.deegree.graphics.displayelements.AbstractDisplayElement

getAssociateFeatureId, getFeature, isHighlighted, isSelected, setFeature, setHighlighted, setSelected

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deegree.graphics.displayelements.DisplayElement

paint

Field Detail

geometry

protected Geometry geometry

the geometry

symbolizer

protected Symbolizer symbolizer

the symbolizer

highlightSymbolizer

protected Symbolizer highlightSymbolizer

the highlighted Symbolizer

selectedSymbolizer

protected Symbolizer selectedSymbolizer

the selected Symbolizer

placement

protected java.lang.Object placement

The placement?

Constructor Detail

GeometryDisplayElement

GeometryDisplayElement(Feature feature,
                       Geometry geometry)

Creates a new GeometryDisplayElement object.

Parameters:

feature -

geometry -

GeometryDisplayElement

GeometryDisplayElement(Feature feature,
                       Geometry geometry,
                       Symbolizer symbolizer)

Creates a new GeometryDisplayElement object.

Parameters:

feature -

geometry -

symbolizer -

GeometryDisplayElement

GeometryDisplayElement(Feature feature,
                       Geometry geometry,
                       Symbolizer symbolizer,
                       Symbolizer highlightSymbolizer,
                       Symbolizer selectedSymbolizer)

Creates a new GeometryDisplayElement object.

Parameters:

feature -

geometry -

symbolizer -

selectedSymbolizer -

highlightSymbolizer -

Method Detail

growEnvelope

protected Envelope growEnvelope(Envelope env,
                                float percent)

Returns a new Envelope for the given envelope that has a border of percent * (with | height) on all sides around it (the longer side is used to determine the border size).

Parameters:

env -

percent -

Returns:

envelope with border around it

setPlacement

public void setPlacement(java.lang.Object o)

Overwrites the default placement of the DisplayElement. This method is used by the PlacementOptimizer to minimize the overlapping of labels, for example.

Parameters:

o - the placement to be used

setGeometry

public void setGeometry(Geometry geometry)

sets the geometry that determines the position the DisplayElement will be rendered to

Parameters:

geometry - to set

getGeometry

public Geometry getGeometry()

returns the geometry that determines the position the DisplayElement will be rendered to

Returns:

the geometry that determines the position the DisplayElement will be rendered to

setSymbolizer

public void setSymbolizer(Symbolizer symbolizer)

sets the rules that determines how the geometry will be rendered

Parameters:

symbolizer -

getSymbolizer

public Symbolizer getSymbolizer()

Returns the symbolizer that determines how the geometry will be rendered.

Returns:

the symbolizer that determines how the geometry will be rendered.

setHighlightSymbolizer

public void setHighlightSymbolizer(Symbolizer rule)

sets the rule that determines how the geometry will be rendered when it's highlighted

Parameters:

rule - symbolizer defining rendering style

getHighlightSymbolizer

public Symbolizer getHighlightSymbolizer()

returns the symbolizer that determines how the geometry will be rendered if it's highlighted

Returns:

the symbolizer that determines how the geometry will be rendered if it's highlighted

setSelectedSymbolizer

public void setSelectedSymbolizer(Symbolizer rule)

sets the rule that determines how the geometry will be rendered when it's selected

Parameters:

rule - symbolizer defining rendering style

getSelectedSymbolizer

public Symbolizer getSelectedSymbolizer()

returns the symbolizer that determines how the geometry will be rendered if it's selected

Returns:

the symbolizer that determines how the geometry will be rendered if it's selected

doesScaleConstraintApply

public boolean doesScaleConstraintApply(double scale)

Returns if the DisplayElement should be painted at the current scale or not.

Specified by:

doesScaleConstraintApply in interface DisplayElement

Specified by:

doesScaleConstraintApply in class AbstractDisplayElement

Parameters:

scale - scale to check

Returns:

true, if the DisplayElement has to be painted, false otherwise