Halo (Geotools modules 30-SNAPSHOT API)

All Superinterfaces:

Halo

All Known Implementing Classes:

HaloImpl
```
public interface Halo
extends Halo
```
A Halo fills an extended area outside the glyphs of a rendered textlabel to make it easier to read over a background.
The details of this object are taken from the OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:
```
 <xsd:element name="Halo">
   <xsd:annotation>
     <xsd:documentation>
      A "Halo" fills an extended area outside the glyphs of a rendered
       text label to make the label easier to read over a background.
     </xsd:documentation>
   </xsd:annotation>
   <xsd:complexType>
     <xsd:sequence>
       <xsd:element ref="sld:Radius" minOccurs="0"/>
       <xsd:element ref="sld:Fill" minOccurs="0"/>
     </xsd:sequence>
   </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.
$Id$
Author:

Ian Turton, CCG

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`accept(StyleVisitor visitor)`
`Fill`	`getFill()`	The fill (color) of the halo
`void`	`setFill(Fill fill)`	The fill (color) of the halo
`void`	`setRadius(Expression radius)`	Expression that represents the the distance the halo extends from the text

Methods inherited from interface Halo
accept, getRadius

- Method Detail
  - setRadius
```
void setRadius(Expression radius)
```
    Expression that represents the the distance the halo extends from the text
  - getFill
```
Fill getFill()
```
    The fill (color) of the halo
    
    Specified by:
    
    getFill in interface Halo
    
    Returns:
    
    fill (color) of the halo
  - setFill
```
void setFill(Fill fill)
```
    The fill (color) of the halo
  - accept
```
void accept(StyleVisitor visitor)
```