| 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 $ |