org.opengis.style

Interface Displacement

All Known Subinterfaces:

Displacement

All Known Implementing Classes:

DisplacementImpl

@XmlElement(value="Displacement")
public interface Displacement

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.

Since:

GeoAPI 2.2

Author:

Open Geospatial Consortium, Johann Sorel (Geomatys), Ian Turton, CCG

Method Summary

Modifier and Type	Method and Description
Object	accept(StyleVisitor visitor, Object extraData) calls the visit method of a StyleVisitor
Expression	getDisplacementX() Returns an expression that computes a pixel offset from the geometry point.
Expression	getDisplacementY() Returns an expression that computes a pixel offset from the geometry point.

Method Detail

getDisplacementX

@XmlElement(value="DisplacementX")
Expression getDisplacementX()

Returns an expression that computes a pixel offset from the geometry point. This offset point is where the text's anchor point gets located. If this expression is null, the default offset of zero is used.

Returns:

Expression

getDisplacementY

@XmlElement(value="DisplacementY")
Expression getDisplacementY()

Returns an expression that computes a pixel offset from the geometry point. This offset point is where the text's anchor point gets located. If this expression is null, the default offset of zero is used.

Returns:

Expression

accept

@Extension
Object accept(StyleVisitor visitor,
                         Object extraData)

calls the visit method of a StyleVisitor

Parameters:

visitor - the style visitor