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

Class RasterLayer

java.lang.Object

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

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

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

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

public class RasterLayer
extends GriddedImageLayer

Nested Class Summary

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

GriddedImageLayer.MapFeatureDataReader

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

ImageLayer.MetadataFilter

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

Drawable.NameAndRange

Constructor Summary

Constructors

Constructor	Description
RasterLayer(String dataFieldName, ColourScheme colourScheme)

Method Summary

Modifier and Type	Method	Description
protected void	drawIntoImage(BufferedImage image, GriddedImageLayer.MapFeatureDataReader dataReader)	Draws the data into the supplied image.
ColourScheme	getColourScheme()
String	getDataFieldName()
Set<Drawable.NameAndRange>	getFieldsWithScales()
ImageLayer.MetadataFilter	getMetadataFilter()
void	setColourScheme(ColourScheme colourScheme)

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

drawIntoImage, supportedFeatureTypes

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

drawImage

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

getOpacityTransform, setOpacityTransform

Methods inherited from class java.lang.Object

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

Constructor Detail

RasterLayer

public RasterLayer(String dataFieldName,
                   ColourScheme colourScheme)

Method Detail

getDataFieldName

public String getDataFieldName()

getColourScheme

public ColourScheme getColourScheme()

setColourScheme

public void setColourScheme(ColourScheme colourScheme)

drawIntoImage

protected void drawIntoImage(BufferedImage image,
                             GriddedImageLayer.MapFeatureDataReader dataReader)
                      throws EdalException

Description copied from class: GriddedImageLayer

Draws the data into the supplied image.

Specified by:

drawIntoImage in class GriddedImageLayer

Parameters:

image - A BufferedImage to draw into

dataReader - A GriddedImageLayer.MapFeatureDataReader which is used to obtain the actual data values and domain. The MapDomain returned will match the size of the image, and pixels are georeferenced to the GridCell2Ds which comprise the domain

Throws:

EdalException - If there is a problem reading the data or drawing into the image

getFieldsWithScales

public Set<Drawable.NameAndRange> getFieldsWithScales()

Specified by:

getFieldsWithScales in class Drawable

Returns:

A list of all the fields used in this image layer, and their appropriate scale ranges. If there is NO scale range there can be NO data field and vice versa - i.e. a Drawable.NameAndRange object must have all non-null fields. If the layer doesn't depend on any data, this should return an empty set. It should never return null.

getMetadataFilter

public ImageLayer.MetadataFilter getMetadataFilter()

Overrides:

getMetadataFilter in class ImageLayer

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)