org.geotools.mbstyle.expression

Class MBRampsScalesCurves

Object

ExpressionAbstract

FunctionImpl

MBExpression

MBRampsScalesCurves

All Implemented Interfaces:

Expression, Function

public class MBRampsScalesCurves
extends MBExpression

Field Summary

Fields inherited from class MBExpression

colors, decisions, featureData, ff, heatMap, json, lookUp, math, name, parse, ramps, string, transformer, types, variableBindings, zoom

Fields inherited from class FunctionImpl

functionName

Fields inherited from interface Expression

NIL

Constructor Summary

Constructors

Constructor and Description
MBRampsScalesCurves(JSONArray json)

Method Summary

Modifier and Type	Method and Description
Expression	getExpression() Determines which expression to use.
Expression	rscInterpolate() Produces continuous, smooth results by interpolating between pairs of input and output values ("stops").
Expression	rscStep() Produces discrete, stepped results by evaluating a piecewise-constant function defined by pairs of input and output values ("stops").

Methods inherited from class MBExpression

canCreate, create, getName, throwInsufficientArgumentCount, throwUnexpectedArgumentCount, transformExpression, transformLiteral

Methods inherited from class FunctionImpl

accept, dispatchArguments, equals, evaluate, functionName, getFallbackValue, getFunctionName, getParameters, getParameterValue, getParameterValue, hashCode, setFallbackValue, setName, setParameters, toString

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

Constructor Detail

MBRampsScalesCurves

public MBRampsScalesCurves(JSONArray json)

Method Detail

rscInterpolate

public Expression rscInterpolate()

Produces continuous, smooth results by interpolating between pairs of input and output values ("stops"). The input may be any numeric expression (e.g., ["get", "population"]). Stop inputs must be numeric literals in strictly ascending order. The output type must be number, array<number>, or color. Example: ["interpolate", interpolation: ["linear"] | ["exponential", base] | ["cubic-bezier", x1, y1, x2, y2 ], input: number, stop_input_1: number, stop_output_1: OutputType, stop_input_n: number, stop_output_n: OutputType, ... ]: OutputType (number, array<number>, or Color)"

Returns:

interpolate expression (not implemented)

rscStep

public Expression rscStep()

Produces discrete, stepped results by evaluating a piecewise-constant function defined by pairs of input and output values ("stops"). The input may be any numeric expression (e.g., ["get", "population"]). Stop inputs must be numeric literals in strictly ascending order. Returns the output value of the stop just less than the input, or the first input if the input is less than the first stop.

Returns:

expression from stop values (unimplemented)

getExpression

public Expression getExpression()
                         throws MBFormatException

Description copied from class: MBExpression

Determines which expression to use.

Specified by:

getExpression in class MBExpression

Throws:

MBFormatException