org.geotools.styling
Interface PointSymbolizer

All Superinterfaces:
Symbolizer
All Known Implementing Classes:
PointSymbolizerImpl

public interface PointSymbolizer
extends Symbolizer

PointSymbolizer. A symbolizer describes how a feature should appear on a map. The symbolizer defines not just the shape that should appear but also such graphical properties as color and opacity. A symbolizer is obtained by specifying one of a small number of different types of symbolizer and then supplying parameters to overide its default behaviour. The details of this object are taken from the OGC Styled-Layer Descriptor Report (OGC 01-077) version 0.7.2. Renderers can use this information when displaying styled features, though it must be remembered that not all renderers will be able to fully represent strokes as set out by this interface. For example, opacity may not be supported. The graphical parameters and their values are derived from SVG/CSS2 standards with names and semantics which are as close as possible.

Version:
$Id: PointSymbolizer.java,v 1.6 2003/10/17 22:50:10 ianschneider Exp $
Author:
James Macgill

Method Summary
 void accept(StyleVisitor visitor)
           
 java.lang.String getGeometryPropertyName()
          This property defines the geometry to be used for styling.
 Graphic getGraphic()
          Provides the graphical-symbolization parameter to use for the point geometry.
 void setGeometryPropertyName(java.lang.String geometryPropertyName)
          This property defines the geometry to be used for styling.
 void setGraphic(Graphic graphic)
          Provides the graphical-symbolization parameter to use for the point geometry.
 

Method Detail

getGraphic

public Graphic getGraphic()
Provides the graphical-symbolization parameter to use for the point geometry.

Returns:
The Graphic to be used when drawing a point.

setGraphic

public void setGraphic(Graphic graphic)
Provides the graphical-symbolization parameter to use for the point geometry.


getGeometryPropertyName

public java.lang.String getGeometryPropertyName()
This property defines the geometry to be used for styling.
The property is optional and if it is absent (null) then the "default" geometry property of the feature should be used. Geometry types other than inherently point types can be used. The geometryPropertyName is the name of a geometry property in the Feature being styled. Typically, features only have one geometry so, in general, the need to select one is not required. Note: this moves a little away from the SLD spec which provides an XPath reference to a Geometry object, but does follow it in spirit.

Returns:
String The name of the attribute in the feature being styled that should be used. If null then the default geometry should be used.

setGeometryPropertyName

public void setGeometryPropertyName(java.lang.String geometryPropertyName)
This property defines the geometry to be used for styling.
The property is optional and if it is absent (null) then the "default" geometry property of the feature should be used. Geometry types other than inherently point types can be used. The geometryPropertyName is the name of a geometry property in the Feature being styled. Typically, features only have one geometry so, in general, the need to select one is not required. Note: this moves a little away from the SLD spec which provides an XPath reference to a Geometry object, but does follow it in spirit.


accept

public void accept(StyleVisitor visitor)
Specified by:
accept in interface Symbolizer


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