Java Doc for PolygonSymbolizer.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.PolygonSymbolizer

All known Subclasses:   org.geotools.styling.PolygonSymbolizerImpl,
PolygonSymbolizer
public interface PolygonSymbolizer extends Symbolizer(Code)
A symbolizer describes how a polygon feature should appear on a map.

The symbolizer describes 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="PolygonSymbolizer" substitutionGroup="sld:Symbolizer">
 <xsd:annotation>
 <xsd:documentation>
 A "PolygonSymbolizer" specifies the rendering of a polygon or
 area geometry, including its interior fill and border stroke.
 </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:Fill" minOccurs="0"/>
 <xsd:element ref="sld:Stroke" 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: PolygonSymbolizer.java 20562 2006-07-16 14:54:53Z jgarnett $




Method Summary
 FillgetFill()
     Provides the graphical-symbolization parameter to use to fill the area of the geometry.
 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.
 StrokegetStroke()
     Provides the graphical-symbolization parameter to use for the outline of the Polygon.
 voidsetFill(Fill fill)
     Provides the graphical-symbolization parameter to use to fill the area of the 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.
 voidsetStroke(Stroke stroke)
     Provides the graphical-symbolization parameter to use for the outline of the Polygon.



Method Detail
getFill
Fill getFill()(Code)
Provides the graphical-symbolization parameter to use to fill the area of the geometry. Note that the area should be filled first before the outline is rendered. The Fill style to use when rendering the area.



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 area types can be used. If a line is used then the line string is closed for filling (only) by connecting its end point to its start point. 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. The name of the attribute in the feature being styled thatshould be used. If null then the default geometry should beused.



getStroke
Stroke getStroke()(Code)
Provides the graphical-symbolization parameter to use for the outline of the Polygon. The Stroke style to use when rendering lines.



setFill
void setFill(Fill fill)(Code)
Provides the graphical-symbolization parameter to use to fill the area of the geometry. Note that the area should be filled first before the outline is rendered.
Parameters:
  fill - The Fill style to use when rendering the area.



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 area types can be used. If a line is used then the line string is closed for filling (only) by connecting its end point to its start point. 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 - The name of the attribute in the featurebeing styled that should be used. If null then the defaultgeometry should be used.



setStroke
void setStroke(Stroke stroke)(Code)
Provides the graphical-symbolization parameter to use for the outline of the Polygon.
Parameters:
  stroke - The Stroke style to use when rendering lines.



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