OpacityMap (Environmental Data Abstraction Library 1.5.2 API)

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.OpacityTransform
      - uk.ac.rdg.resc.edal.graphics.style.OpacityMap

public class OpacityMap
extends OpacityTransform

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

OpacityMap(String dataFieldName, DensityMap opacityMap)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`applyOpacityToImage(BufferedImage image, GriddedImageLayer.MapFeatureDataReader dataReader)`
`Set<Drawable.NameAndRange>`	`getFieldsWithScales()`

Methods inherited from class uk.ac.rdg.resc.edal.graphics.style.OpacityTransform
blendPixel, drawIntoImage

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, getMetadataFilter

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
  - OpacityMap
```
public OpacityMap(String dataFieldName,
                  DensityMap opacityMap)
```
- Method Detail
  - applyOpacityToImage
```
protected void applyOpacityToImage(BufferedImage image,
                                   GriddedImageLayer.MapFeatureDataReader dataReader)
                            throws EdalException
```
    Specified by:
    
    applyOpacityToImage in class OpacityTransform
    
    Throws:
    
    EdalException
  - 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.