Package org.geotools.renderer.style

Class ImageGraphicFactory

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

    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 Details

    • ImageGraphicFactory

      public ImageGraphicFactory()

  • Method Details

    • 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