Transform (Groovy Documentation)

geoscript.style.Transform

```
class Transform
extends Symbolizer
```
A Symbolizer that wraps a geoscript.filter.Function generally used for transforming Geometry or String or Date formatting.
You can create a Transform from a CQL statement:
```
 Transform transform = new Transform("centroid(the_geom)")
 
```
Or from a geoscript.filter.Function:
```
 Transform transform1 = new Transform(new Function("myCentroid", {g -> g.centroid}))
 
```
Authors:
Jared Erickson

Nested Class Summary

Nested classes
Modifiers	Name	Description
`static enum`	`Transform.Type`	The Type enumeration

Field Summary

Fields
Modifiers	Name	Description
`static CsvWriter.Type`	`NORMAL`	Type constants for ease of use
`static CsvWriter.Type`	`RENDERING`

Inherited fields
Fields inherited from class	Fields
`class Symbolizer`	`filterFactory, styleBuilder, styleFactory, styleOptions`

Constructor Summary

Constructors
Constructor and description
`Transform (Function function, CsvWriter.Type type)` Create a new Transform from a Function.
`Transform (java.lang.String cql, CsvWriter.Type type)` Create a new Transform from a CQL filter function.

Methods Summary

Methods
Type Params	Return Type	Name and description
	`protected void`	`apply(Symbolizer sym)` Apply this Symbolizer to the GeoTools Symbolizer
	`Function`	`getFunction()` Get the Function
	`CsvWriter.Type`	`getType()` Get the Type
	`protected void`	`prepare(FeatureTypeStyle fts, Rule rule)` Prepare the GeoTools FeatureTypeStyle and Rule by applying this Symbolizer.
	`protected void`	`prepare(Rule rule)` Prepare the GeoTools Rule by applying this Symbolizer
	`java.lang.String`	`toString()` The string representation

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class Symbolizer`	`and, apply, asSLD, asSLD, buildString, composite, createGeoToolsSymbolizer, getDefault, getDefault, getGeoToolsSymbolizers, getGtStyle, getSld, plus, prepare, prepare, range, range, sortBy, sortBy, where, zindex`

- Field Detail
  - public static final CsvWriter.Type NORMAL
    
    Type constants for ease of use
  - public static final CsvWriter.Type RENDERING
- Constructor Detail
  - Transform(Function function, CsvWriter.Type type)
    
    Create a new Transform from a Function.
```
 Transform transform1 = new Transform(new Function("myCentroid", {g -> g.centroid}))
 
```
    Parameters:
    function - The geoscript.filter.Function
    type - The optional Transformation type (GEOMETRY or RENDERING)
  - Transform(java.lang.String cql, CsvWriter.Type type)
    
    Create a new Transform from a CQL filter function.
```
 Transform transform = new Transform("centroid(the_geom)")
 
```
    Parameters:
    cql - A CQL string
- Method Detail
  - @java.lang.Override protected void apply(Symbolizer sym)
    
    Apply this Symbolizer to the GeoTools Symbolizer
    Parameters:
    sym - The GeoTools Symbolizer
  - Function getFunction()
    
    Get the Function
    Returns:
    The Function
  - CsvWriter.Type getType()
    
    Get the Type
    Returns:
    The Type
  - @java.lang.Override protected void prepare(FeatureTypeStyle fts, Rule rule)
    
    Prepare the GeoTools FeatureTypeStyle and Rule by applying this Symbolizer.
    Parameters:
    fts - The GeoTools FeatureTypeStyle
    rule - The GeoTools Rule
  - @java.lang.Override protected void prepare(Rule rule)
    
    Prepare the GeoTools Rule by applying this Symbolizer
    Parameters:
    rule - The GeoTools Rule
  - java.lang.String toString()
    
    The string representation
    Returns:
    The string representation

| Detail:
Field
Constructor
Method

Groovy Documentation

[Groovy] Class Transform

Nested Class Summary

Field Summary

Constructor Summary

Methods Summary

Inherited Methods Summary

Field Detail

public static final CsvWriter.Type NORMAL

public static final CsvWriter.Type RENDERING

Constructor Detail

Transform(Function function, CsvWriter.Type type)

Transform(java.lang.String cql, CsvWriter.Type type)

Method Detail

@java.lang.Override protected void apply(Symbolizer sym)

Function getFunction()

CsvWriter.Type getType()

@java.lang.Override protected void prepare(FeatureTypeStyle fts, Rule rule)

@java.lang.Override protected void prepare(Rule rule)

java.lang.String toString()