Interpolate (Geotools modules 31-SNAPSHOT API)

All Superinterfaces:

Expression, Function
```
public interface Interpolate
extends Function
```
Interpolation: Transformation of continuous values by a function defined on a number of nodes. This is used to adjust the value distribution of an attribute to the desired distribution of a continuous symbolization control variable (like size, width, color, etc).
In case the Categorize (or Interpolate) function is used inside a RasterSymbolizer as a ColorMap, the LookupValue is set to the fixed value “Rasterdata”.

Author:

Johann Sorel (Geomatys)

Field Summary
- Fields inherited from interface Expression
  NIL

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<InterpolationPoint>`	`getInterpolationPoints()`	See `InterpolationPoint` for details.
`Expression`	`getLookupValue()`	Get lookup value.
`Method`	`getMethod()`	Get the interpolation method.
`Mode`	`getMode()`	Get the interpolation mode.

Methods inherited from interface Expression
accept, evaluate, evaluate

Methods inherited from interface Function
getFallbackValue, getFunctionName, getName, getParameters

- Method Detail
  - getLookupValue
```
Expression getLookupValue()
```
    Get lookup value.
    
    Returns:
    
    Expression
  - getInterpolationPoints
```
List<InterpolationPoint> getInterpolationPoints()
```
    See InterpolationPoint for details.
  - getMode
```
Mode getMode()
```
    Get the interpolation mode.
    
    Returns:
    
    LINEAR, COSINE or CUBIC.
  - getMethod
```
Method getMethod()
```
    Get the interpolation method.
    
    Returns:
    
    NUMERIC or COLOR