org.geotools.styling

Interface ChannelSelection

All Superinterfaces:

ChannelSelection

public interface ChannelSelection
extends ChannelSelection

The ChannelSelection element specifies the false-color channel selection for a multi-spectral raster source (such as a multi-band satellite-imagery source). It is defined as:

 <xs:element name="ChannelSelection">
 <xs:complexType>
     <xs:choice>
       <xs:sequence>
         <xs:element ref="sld:RedChannel"/>
         <xs:element ref="sld:GreenChannel"/>
         <xs:element ref="sld:BlueChannel"/>
       </xs:sequence>
       <xs:element ref="sld:GrayChannel"/>
     </xs:choice>
   </xs:complexType>
 </xs:element>
 <xs:element name="RedChannel" type="sld:SelectedChannelType"/>
 <xs:element name="GreenChannel" type="sld:SelectedChannelType"/>
 <xs:element name="BlueChannel" type="sld:SelectedChannelType"/>
 <xs:element name="GrayChannel" type="sld:SelectedChannelType"/>
 

Either a channel may be selected to display in each of red, green, and blue, or a single channel may be selected to display in grayscale. (The spelling ?gray? is used since it seems to be more common on the Web than ?grey? by a ratio of about 3:1.) Contrast enhancement may be applied to each channel in isolation. Channels are identified by a system and data-dependent character identifier. Commonly, channels will be labelled as ?1?, ?2?, etc.

Author:

iant

Method Summary

Modifier and Type	Method and Description
void	accept(StyleVisitor visitor)
SelectedChannelType	getGrayChannel() Get the gray channel to be used
SelectedChannelType[]	getRGBChannels() get the RGB channels to be used
SelectedChannelType[]	getSelectedChannels() Deprecated. Please use getRGBChannels
void	setGrayChannel(SelectedChannelType gray) Set the gray channel to be used
void	setRGBChannels(SelectedChannelType[] channels) Set the RGB channels to be used
void	setRGBChannels(SelectedChannelType red, SelectedChannelType green, SelectedChannelType blue) Set the RGB channels to be used
void	setSelectedChannels(SelectedChannelType[] channels) Deprecated. Please use setRGBChannels

Methods inherited from interface ChannelSelection

accept

Method Detail

setRGBChannels

void setRGBChannels(SelectedChannelType red,
                    SelectedChannelType green,
                    SelectedChannelType blue)

Set the RGB channels to be used

Parameters:

red - the red channel

green - the green channel

blue - the blue channel

setRGBChannels

void setRGBChannels(SelectedChannelType[] channels)

Set the RGB channels to be used

Parameters:

channels - array of channels in RGB order

getRGBChannels

SelectedChannelType[] getRGBChannels()

get the RGB channels to be used

Specified by:

getRGBChannels in interface ChannelSelection

Returns:

array of channels in RGB order

setGrayChannel

void setGrayChannel(SelectedChannelType gray)

Set the gray channel to be used

Parameters:

gray - the gray channel

getGrayChannel

SelectedChannelType getGrayChannel()

Get the gray channel to be used

Specified by:

getGrayChannel in interface ChannelSelection

Returns:

the gray channel

setSelectedChannels

void setSelectedChannels(SelectedChannelType[] channels)

Deprecated. Please use setRGBChannels

set the channels to be used

Parameters:

channels - array of channels

getSelectedChannels

SelectedChannelType[] getSelectedChannels()

Deprecated. Please use getRGBChannels

get the channels to be used

Returns:

array of channels

accept

void accept(StyleVisitor visitor)