Package io.deephaven.plot.axistransformations

Class AxisTransformLambda

java.lang.Object

io.deephaven.plot.axistransformations.AxisTransformLambda

All Implemented Interfaces:

AxisTransform, Serializable

public class AxisTransformLambda
extends Object
implements AxisTransform, Serializable

Transformations from dataset space to axis space and back. Axis space refers to how data is displayed in the chart. For example, if the transform from dataset space to axis space was defined as x^0.5, the dataset values 1, 4, and 9 would be plotted as 1, 2, and 3,] creating a square root axis scale.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AxisTransformLambda()	Creates an AxisTransformLambda instance where all dataset values are visible in the plot and the dataset to axis space transform and its inverse are the identity function.
AxisTransformLambda(DoubleUnaryOperator dataToAxis, DoubleUnaryOperator axisToData)	Creates an AxisTransformLambda instance where all dataset values are visible in the plot.
AxisTransformLambda(DoubleUnaryOperator dataToAxis, DoubleUnaryOperator axisToData, DoublePredicate isVisible)	Creates an AxisTransformLambda instance.

Method Summary

Modifier and Type	Method	Description
double	inverseTransform(double axisValue)	Transforms a point in Axis space to dataset space.
boolean	isVisible(double dataValue)	Gets whether a data point is visible in the plot.
double	transform(double dataValue)	Transforms a data point to Axis space.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AxisTransformLambda

public AxisTransformLambda(DoubleUnaryOperator dataToAxis,
 DoubleUnaryOperator axisToData,
 DoublePredicate isVisible)

Creates an AxisTransformLambda instance.

Parameters:

dataToAxis - transform from dataset space to axis space

axisToData - transform from axis space to dataset space

isVisible - function that determines if a particular data point should be displayed

AxisTransformLambda

public AxisTransformLambda(DoubleUnaryOperator dataToAxis,
 DoubleUnaryOperator axisToData)

Creates an AxisTransformLambda instance where all dataset values are visible in the plot.

Parameters:

dataToAxis - transform from dataset space to axis space

axisToData - transform from axis space to dataset space

AxisTransformLambda

public AxisTransformLambda()

Creates an AxisTransformLambda instance where all dataset values are visible in the plot and the dataset to axis space transform and its inverse are the identity function.

Method Details

transform

public double transform(double dataValue)

Description copied from interface: AxisTransform

Transforms a data point to Axis space.

Specified by:

transform in interface AxisTransform

Parameters:

dataValue - data point

Returns:

corresponding value in Axis space

inverseTransform

public double inverseTransform(double axisValue)

Description copied from interface: AxisTransform

Transforms a point in Axis space to dataset space.

Specified by:

inverseTransform in interface AxisTransform

Parameters:

axisValue - Axis space data point

Returns:

corresponding value in dataset space

isVisible

public boolean isVisible(double dataValue)

Description copied from interface: AxisTransform

Gets whether a data point is visible in the plot.

Specified by:

isVisible in interface AxisTransform

Parameters:

dataValue - data point

Returns:

whether dataValue is visible in the plot