Package uk.ac.rdg.resc.edal.graphics.style

Class ImageLayer

java.lang.Object

uk.ac.rdg.resc.edal.graphics.style.Drawable

uk.ac.rdg.resc.edal.graphics.style.ImageLayer

Direct Known Subclasses:

ColouredGlyphLayer, ColouredTrajectoryLayer, GriddedImageLayer

public abstract class ImageLayer
extends Drawable

Abstract class representing a layer within an image.

Author:

Guy Griffiths

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ImageLayer.MetadataFilter	An interface used to filter metadata for plotting.

Nested classes/interfaces inherited from class uk.ac.rdg.resc.edal.graphics.style.Drawable

Drawable.NameAndRange

Constructor Summary

Constructors

Constructor	Description
ImageLayer()

Method Summary

Modifier and Type	Method	Description
BufferedImage	drawImage(PlottingDomainParams params, FeatureCatalogue catalogue)
protected abstract void	drawIntoImage(BufferedImage image, PlottingDomainParams params, FeatureCatalogue catalogue)	Draw the data into a supplied BufferedImage
ImageLayer.MetadataFilter	getMetadataFilter()
abstract Collection<Class<? extends Feature<?>>>	supportedFeatureTypes()

Methods inherited from class uk.ac.rdg.resc.edal.graphics.style.Drawable

getFieldsWithScales, getOpacityTransform, setOpacityTransform

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ImageLayer

public ImageLayer()

Method Detail

drawImage

public BufferedImage drawImage(PlottingDomainParams params,
                               FeatureCatalogue catalogue)
                        throws EdalException

Specified by:

drawImage in class Drawable

Throws:

EdalException

drawIntoImage

protected abstract void drawIntoImage(BufferedImage image,
                                      PlottingDomainParams params,
                                      FeatureCatalogue catalogue)
                               throws EdalException

Draw the data into a supplied BufferedImage

Parameters:

image -

params -

catalogue -

Throws:

EdalException

supportedFeatureTypes

public abstract Collection<Class<? extends Feature<?>>> supportedFeatureTypes()

getMetadataFilter

public ImageLayer.MetadataFilter getMetadataFilter()

Returns:

A ImageLayer.MetadataFilter to filter certain types of data for plotting. The default behaviour is to allow all (supported) layers to be plotted. This is essentially an exclusionary filter which users can implement (e.g. for disallowing directional fields from being plotted as rasters)