Displacement (Geotools modules 31-SNAPSHOT API)

All Known Implementing Classes:

DisplacementImpl
```
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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`accept(StyleVisitor visitor)`
`Object`	`accept(TraversingStyleVisitor 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.
`void`	`setDisplacementX(Expression x)`	Sets the expression that computes a pixel offset from the geometry point.
`void`	`setDisplacementY(Expression y)`	Sets the expression that computes a pixel offset from the geometry point.

- Method Detail
  - getDisplacementX
```
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:
    
    Horizontal offeset
  - getDisplacementY
```
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
```
Object accept(TraversingStyleVisitor visitor,
              Object extraData)
```
    calls the visit method of a StyleVisitor
    
    Parameters:
    
    visitor - the style visitor
  - setDisplacementX
```
void setDisplacementX(Expression x)
```
    Sets the expression that computes a pixel offset from the geometry point.
  - setDisplacementY
```
void setDisplacementY(Expression y)
```
    Sets the expression that computes a pixel offset from the geometry point.
  - accept
```
void accept(StyleVisitor visitor)
```