PointOnLineFunction (Geotools modules 31-SNAPSHOT API)

Object
- ExpressionAbstract
- - DefaultExpression
  - - FunctionExpressionImpl
    - - PointOnLineFunction

All Implemented Interfaces:

Expression, Function, FunctionExpression, Factory
```
public class PointOnLineFunction
extends FunctionExpressionImpl
```
Returns a point on the provided line. The point is at the specified percentage of the line's length. If no percentage is provided, the mid point will be returned. If the line is a collection of lines, the first line is used.
No attempt is made to perform linear referencing based on a measure, althought this could be implemented in the future.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static FunctionName NAME
  - Fields inherited from class FunctionExpressionImpl
    fallback, functionName, name, params
  - Fields inherited from interface Expression
    NIL
- Constructor Summary
  
  Constructors
  Constructor Description
  
  PointOnLineFunction()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  Object evaluate(Object object)
  Subclass should override, default implementation returns null.
  - Methods inherited from class FunctionExpressionImpl
    accept, equals, functionName, getExpression, getFallbackValue, getFunctionName, getImplementationHints, getName, getParameters, hashCode, setFallbackValue, setParameters, toString
  - Methods inherited from class DefaultExpression
    isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression
  - Methods inherited from class ExpressionAbstract
    evaluate
  - Methods inherited from class Object
    clone, finalize, getClass, notify, notifyAll, wait, wait, wait
  - Methods inherited from interface Expression
    evaluate

- Field Detail
  - NAME
```
public static FunctionName NAME
```
- Constructor Detail
  - PointOnLineFunction
```
public PointOnLineFunction()
```
- Method Detail
  - evaluate
```
public Object evaluate(Object object)
```
    Description copied from class: ExpressionAbstract
    
    Subclass should override, default implementation returns null.
    
    Specified by:
    
    evaluate in interface Expression
    
    Overrides:
    
    evaluate in class FunctionExpressionImpl
    
    Returns:
    
    default implementation returns null