LookupFilter (meteoinfo-image 4.0 API)

java.lang.Object
- org.meteoinfo.image.filter.AbstractBufferedImageOp
- - org.meteoinfo.image.filter.PointFilter
  - - org.meteoinfo.image.filter.LookupFilter

所有已实现的接口:

BufferedImageOp, Cloneable
```
public class LookupFilter
extends PointFilter
```
A filter which uses the brightness of each pixel to lookup a color from a colormap.

字段概要
- 从类继承的字段 org.meteoinfo.image.filter.PointFilter
  canFilterIndexColorModel

构造器概要

构造器
构造器说明

LookupFilter()
Construct a LookupFilter.

LookupFilter(Colormap colormap)
Construct a LookupFilter.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`int`	`filterRGB(int x, int y, int rgb)`
`Colormap`	`getColormap()`	Get the colormap to be used for the filter.
`void`	`setColormap(Colormap colormap)`	Set the colormap to be used for the filter.
`String`	`toString()`

从类继承的方法 org.meteoinfo.image.filter.PointFilter
filter, setDimensions

从类继承的方法 org.meteoinfo.image.filter.AbstractBufferedImageOp
clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB

从类继承的方法 java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 构造器详细资料
  - LookupFilter
```
public LookupFilter()
```
    Construct a LookupFilter.
  - LookupFilter
```
public LookupFilter(Colormap colormap)
```
    Construct a LookupFilter.
    
    参数:
    
    colormap - the color map
- 方法详细资料
  - setColormap
```
public void setColormap(Colormap colormap)
```
    Set the colormap to be used for the filter.
    
    参数:
    
    colormap - the colormap
    
    另请参阅:
    
    getColormap()
  - getColormap
```
public Colormap getColormap()
```
    Get the colormap to be used for the filter.
    
    返回:
    
    the colormap
    
    另请参阅:
    
    setColormap(org.meteoinfo.image.filter.Colormap)
  - filterRGB
```
public int filterRGB(int x,
                     int y,
                     int rgb)
```
    指定者:
    
    filterRGB 在类中 PointFilter
  - toString
```
public String toString()
```
    覆盖:
    
    toString 在类中 Object