org.faceless.graph.math
Class FunctionCurve

java.lang.Object
  org.faceless.graph.math.Curve
      org.faceless.graph.math.FunctionCurve

Direct Known Subclasses:

Polynomial, SimpleCurve, Spline

public abstract class FunctionCurve
extends Curve

A Function Curve is the abstract superclass of any curves that represent a mathematical function. This is basically anything that isn't a DataCurve.

The primary difference between a Function curve and a Data curve is that the former is sampled at many different positions on the curve to obtain an approximation of the curve, while a DataCurve is sampled only where a data entry exists

FunctionCurve

public FunctionCurve()

point

public boolean point(double x)

Description copied from class: Curve

If a marker is to be placed at this point on the curve then return true, otherwise return false. Most FunctionCurve will return false, but curves that have been fitted to a DataCurve may return any points from that DataCurve that are matched exactly by the fitted curve.

Specified by:

point in class Curve

steps

public double[] steps()

Description copied from class: Curve

Return the points on the curve that it should be sampled at to get an accurate picture of it. Subclasses of FunctionCurve may return an empty list if they wish, or if there are certain points that the curve must be sampled at, it can return them here.

Specified by:

steps in class Curve

getMin

public double getMin()

Description copied from class: Curve

Return the minimum value that is defined for this curve. For curves with no minimum (like most mathematical functions), this should return Double.POSITIVE_INFINITY (yes, positive)

Specified by:

getMin in class Curve

getMax

public double getMax()

Description copied from class: Curve

Return the maximum value that is defined for this curve. For curves with no maximum (like most mathematical functions), this should return Double.NEGATIVE_INFINITY (yes, negative)

Specified by:

getMax in class Curve