Package org.geotools.styling

Interface PointSymbolizer

All Superinterfaces:

PointSymbolizer, Symbolizer, Symbolizer

All Known Implementing Classes:

PointSymbolizerImpl

public interface PointSymbolizer
extends PointSymbolizer, Symbolizer

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

Field Summary

Fields

Modifier and Type	Field	Description
static String	FALLBACK_ON_DEFAULT_MARK	Boolean vendor option, defaults to true.

Method Summary

Modifier and Type	Method	Description
Graphic	getGraphic()	Provides the graphical-symbolization parameter to use for the point geometry.
void	setGraphic(Graphic graphic)	Provides the graphical-symbolization parameter to use for the point geometry.

Methods inherited from interface PointSymbolizer

accept

Methods inherited from interface Symbolizer

accept, getDescription, getGeometry, getGeometryPropertyName, getOptions, hasOption, setDescription, setGeometry, setGeometryPropertyName, setName, setUnitOfMeasure

Methods inherited from interface Symbolizer

getName, getUnitOfMeasure

Field Detail

FALLBACK_ON_DEFAULT_MARK

static final String FALLBACK_ON_DEFAULT_MARK

Boolean vendor option, defaults to true. If true, in case no specified mark or graphics can be used, the default square mark will be used instead. If false, the symbol will not be painted.

See Also:

Constant Field Values

Method Detail

getGraphic

Graphic getGraphic()

Provides the graphical-symbolization parameter to use for the point geometry.

Specified by:

getGraphic in interface PointSymbolizer

Returns:

The Graphic to be used when drawing a point.

setGraphic

void setGraphic(Graphic graphic)

Provides the graphical-symbolization parameter to use for the point geometry.