org.opengis.style

Interface PolygonSymbolizer

All Superinterfaces:

Symbolizer

All Known Subinterfaces:

PolygonSymbolizer

All Known Implementing Classes:

PolygonSymbolizerImpl

@XmlElement(value="PolygonSymbolizer")
public interface PolygonSymbolizer
extends Symbolizer

Holds the information that indicates how to draw the lines and the interior of polygons.

Since:

GeoAPI 2.2

Author:

Open Geospatial Consortium, Johann Sorel (Geomatys), Chris Dillard (SYS Technologies)

Method Summary

Modifier and Type	Method and Description
Object	accept(StyleVisitor visitor, Object extraData) calls the visit method of a StyleVisitor
Displacement	getDisplacement() The Displacement gives the X and Y displacements from the original geometry.
Fill	getFill() Returns the object that holds the information about how the interior of polygons should be filled.
Expression	getPerpendicularOffset() PerpendicularOffset works as defined for LineSymbolizer, allowing to draw polygons smaller or larger than their actual geometry.
Stroke	getStroke() Returns the object containing all the information necessary to draw styled lines.

Methods inherited from interface Symbolizer

getDescription, getGeometryPropertyName, getName, getUnitOfMeasure

Method Detail

getStroke

@XmlElement(value="Stroke")
Stroke getStroke()

Returns the object containing all the information necessary to draw styled lines. This is used for the edges of polygons.

Returns:

Stroke

getFill

@XmlElement(value="Fill")
Fill getFill()

Returns the object that holds the information about how the interior of polygons should be filled. This may be null if the polygons are not to be filled at all.

Returns:

Fill

getDisplacement

@XmlElement(value="Displacement")
Displacement getDisplacement()

The Displacement gives the X and Y displacements from the original geometry. This element may be used to avoid over-plotting of multiple PolygonSymbolizers for one geometry or supplying "shadows" of polygon gemeotries. The displacements are in units of pixels above and to the right of the point. The default displacement is X=0, Y=0.

Returns:

Displacement

getPerpendicularOffset

@XmlElement(value="PerpendicularOffset")
Expression getPerpendicularOffset()

PerpendicularOffset works as defined for LineSymbolizer, allowing to draw polygons smaller or larger than their actual geometry. The distance is in uoms and is positive to the outside of the polygon. Negative numbers mean drawing the polygon smaller. The default offset is 0.

Returns:

Expression

accept

@Extension
Object accept(StyleVisitor visitor,
                         Object extraData)

calls the visit method of a StyleVisitor

Specified by:

accept in interface Symbolizer

Parameters:

visitor - the style visitor

Returns:

value produced