ImageGraphicFactory (Geotools modules 31-SNAPSHOT API)

Object
- ImageGraphicFactory

All Implemented Interfaces:

ExternalGraphicFactory, GraphicCache
```
public class ImageGraphicFactory
extends Object
implements ExternalGraphicFactory, GraphicCache
```
External graphic factory accepting an Expression that can be evaluated to a URL pointing to a image file. The format must be one of the mime types supported by the current JDK.

Author:

Andrea Aime - TOPP

Constructor Summary

Constructors
Constructor Description

ImageGraphicFactory()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clearCache()`	Clear the graphic cache.
`Icon`	`getIcon(Feature feature, Expression url, String format, int size)`	Turns the specified URL into an Icon, eventually using the Feature attributes to evaluate CQL expressions embedded in the url. The `size` parameter defines the size of the image (so that vector based symbols can be drawn at the specified size directly), or may be zero or negative if the size was not specified (in that case the "natural" size of the image will be used, which is the size in pixels for raster images, and 16 for any format that does not have a specific size, according to the SLD spec). `null` will be returned if this factory cannot handle the provided url.
`Set<String>`	`getSupportedMimeTypes()`	Returs the set of mime types supported by this factory
`static void`	`resetCache()`	Images are cached by the factory, this method can be used to drop the cache

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ImageGraphicFactory
```
public ImageGraphicFactory()
```
- Method Detail
  - getIcon
```
public Icon getIcon(Feature feature,
                    Expression url,
                    String format,
                    int size)
```
    Description copied from interface: ExternalGraphicFactory
    
    Turns the specified URL into an Icon, eventually using the Feature attributes to evaluate CQL expressions embedded in the url.
    The size parameter defines the size of the image (so that vector based symbols can be drawn at the specified size directly), or may be zero or negative if the size was not specified (in that case the "natural" size of the image will be used, which is the size in pixels for raster images, and 16 for any format that does not have a specific size, according to the SLD spec).
    null will be returned if this factory cannot handle the provided url.
    
    Specified by:
    
    getIcon in interface ExternalGraphicFactory
  - getSupportedMimeTypes
```
public Set<String> getSupportedMimeTypes()
```
    Returs the set of mime types supported by this factory
  - resetCache
```
public static void resetCache()
```
    Images are cached by the factory, this method can be used to drop the cache
  - clearCache
```
public void clearCache()
```
    Description copied from interface: GraphicCache
    
    Clear the graphic cache.
    
    Specified by:
    
    clearCache in interface GraphicCache