Java Doc for PointSymbolizer.java in  » GIS » GeoTools-2.4.1 » org » geotools » styling » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.styling 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.geotools.styling.PointSymbolizer

All known Subclasses:   org.geotools.styling.PointSymbolizerImpl,
PointSymbolizer
public interface PointSymbolizer extends Symbolizer(Code)
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 02-070) version 1.0.0.:


 <xsd:element name="PointSymbolizer" substitutionGroup="sld:Symbolizer">
 <xsd:annotation>
 <xsd:documentation>
 A "PointSymbolizer" specifies the rendering of a "graphic symbol"
 at a point.
 </xsd:documentation>
 </xsd:annotation>
 <xsd:complexType>
 <xsd:complexContent>
 <xsd:extension base="sld:SymbolizerType">
 <xsd:sequence>
 <xsd:element ref="sld:Geometry" minOccurs="0"/>
 <xsd:element ref="sld:Graphic" minOccurs="0"/>
 </xsd:sequence>
 </xsd:extension>
 </xsd:complexContent>
 </xsd:complexType>
 </xsd:element>
 

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.

Notes:

  • The graphical parameters and their values are derived from SVG/CSS2 standards with names and semantics which are as close as possible.


author:
   James Macgill
version:
   $Id: PointSymbolizer.java 20562 2006-07-16 14:54:53Z jgarnett $




Method Summary
 StringgetGeometryPropertyName()
     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.
 GraphicgetGraphic()
     Provides the graphical-symbolization parameter to use for the point geometry.
 voidsetGeometryPropertyName(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.
 voidsetGraphic(Graphic graphic)
     Provides the graphical-symbolization parameter to use for the point geometry.



Method Detail
getGeometryPropertyName
String getGeometryPropertyName()(Code)
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. String The name of the attribute in the feature being styledthat should be used. If null then the default geometry shouldbe used.



getGraphic
Graphic getGraphic()(Code)
Provides the graphical-symbolization parameter to use for the point geometry. The Graphic to be used when drawing a point.



setGeometryPropertyName
void setGeometryPropertyName(String geometryPropertyName)(Code)
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.
Parameters:
  geometryPropertyName - DOCUMENT ME!



setGraphic
void setGraphic(Graphic graphic)(Code)
Provides the graphical-symbolization parameter to use for the point geometry.
Parameters:
  graphic - DOCUMENT ME!



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