class ChannelSelection extends RasterSymbolizer
The ChannelSelection Symbolizer is used to style multi-spectral Rasters such as multi-band satellite imagery.
You can create a ChannelSelection for RGB channels:
def channel = new ChannelSelection("red", "green", "blue")
Or you can create a ChannelSelection for a gray scale channel:
def channel = new ChannelSelection("gray")
Or you can create a ChannelSelection for a RBG channels with specific ContrastEnhancement values:
def channel = new ChannelSelection()
.red("red", new ContrastEnhancement("histogram", 0.35))
.green("green", new ContrastEnhancement("histogram", 0.45))
.blue("blue", new ContrastEnhancement("histogram", 0.55))
| Fields inherited from class | Fields |
|---|---|
class Symbolizer |
filterFactory, styleBuilder, styleFactory, styleOptions, title |
| Type | Name and description |
|---|---|
ContrastEnhancement |
blueContrastEnhancementThe blue ContrastEnhancement |
java.lang.String |
blueNameThe blue channel name |
ContrastEnhancement |
grayContrastEnhancementThe gray ContrastEnhancement |
java.lang.String |
grayNameThe gray channel name |
ContrastEnhancement |
greenContrastEnhancementThe green ContrastEnhancement |
java.lang.String |
greenNameThe green channel name |
ContrastEnhancement |
redContrastEnhancementThe red ContrastEnhancement |
java.lang.String |
redNameThe red channel name |
| Constructor and description |
|---|
ChannelSelection()Create a new ChannelSelection |
ChannelSelection(java.lang.String redName, java.lang.String greenName, java.lang.String blueName)Create a new ChannelSelection with red, green, and blue channel names |
ChannelSelection(java.lang.String grayName)Create a new ChannelSelection with a gray channel name |
ChannelSelection(Map map)Create a new ChannelSelection from named parameters. |
| Type Params | Return Type | Name and description |
|---|---|---|
|
protected void |
apply(Symbolizer sym)Apply this Symbolizer to the GeoTools Symbolizer |
|
ChannelSelection |
blue(java.lang.String name, ContrastEnhancement contrastEnhancement)Set the blue channel name and optionally the blue ContrastEnhancement |
|
ChannelSelection |
gray(java.lang.String name, ContrastEnhancement contrastEnhancement)Set the gray channel name and optionally the gray ContrastEnhancement |
|
ChannelSelection |
green(java.lang.String name, ContrastEnhancement contrastEnhancement)Set the green channel name and optionally the green ContrastEnhancement |
|
protected void |
prepare(Rule rule)Prepare the GeoTools Rule by applying this Symbolizer |
|
ChannelSelection |
red(java.lang.String name, ContrastEnhancement contrastEnhancement)Set the red channel name and optionally the red ContrastEnhancement |
|
java.lang.String |
toString()The string representation |
| Methods inherited from class | Name |
|---|---|
class RasterSymbolizer |
apply, geometry, opacity, overlap, prepare, setGeometry, setOpacity, setOverlap, toString |
class Symbolizer |
and, apply, asSLD, asSLD, buildString, composite, createGeoToolsSymbolizer, getDefault, getDefault, getGeoToolsSymbolizers, getGtStyle, getSld, getTitle, plus, prepare, prepare, range, range, sortBy, sortBy, title, where, zindex |
The blue ContrastEnhancement
The blue channel name
The gray ContrastEnhancement
The gray channel name
The green ContrastEnhancement
The green channel name
The red ContrastEnhancement
The red channel name
Create a new ChannelSelection
Create a new ChannelSelection with red, green, and blue channel names
redName - The red channel namegreenName - The green channel nameblueName - The blue channel nameCreate a new ChannelSelection with a gray channel name
grayName - The gray channel nameCreate a new ChannelSelection from named parameters.
map - A Map of named parameters.Apply this Symbolizer to the GeoTools Symbolizer
sym - The GeoTools SymbolizerSet the blue channel name and optionally the blue ContrastEnhancement
name - The blue channel namecontrastEnhancement - The blue ContrastEnhancementSet the gray channel name and optionally the gray ContrastEnhancement
name - The gray channel namecontrastEnhancement - The gray ContrastEnhancementSet the green channel name and optionally the green ContrastEnhancement
name - The green channel namecontrastEnhancement - The green ContrastEnhancementPrepare the GeoTools Rule by applying this Symbolizer
rule - The GeoTools RuleSet the red channel name and optionally the red ContrastEnhancement
name - The red channel namecontrastEnhancement - The red ContrastEnhancementThe string representation
Groovy Documentation