Package de.gsi.chart.axes.spi.transforms

Class LogarithmicAxisTransform

java.lang.Object

de.gsi.chart.axes.spi.transforms.AbstractAxisTransform

de.gsi.chart.axes.spi.transforms.LogarithmicAxisTransform

All Implemented Interfaces:

AxisTransform

Direct Known Subclasses:

LogarithmicTimeAxisTransform

public class LogarithmicAxisTransform
extends AbstractAxisTransform

Author:

rstein

Field Summary

Fields

Modifier and Type	Field	Description
static double	DB10_LOGARITHM_BASE
static double	DB20_LOGARITHM_BASE
static double	DEFAULT_LOG_MIN_VALUE
static double	DEFAULT_LOGARITHM_BASE

Fields inherited from class de.gsi.chart.axes.spi.transforms.AbstractAxisTransform

axis, rangeMax, rangeMin

Constructor Summary

Constructors

Constructor	Description
LogarithmicAxisTransform(Axis axis)

Method Summary

Modifier and Type	Method	Description
double	backward(double val)	default backward transform for affine functions: backward(forward(val)) = forward(backward(val)) = val;
double	forward(double val)	default forward transform for affine functions: backward(forward(val)) = forward(backward(val)) = val;
double	getLogarithmBase()	Returns the value of the logarithmBaseProperty().
double	getRoundedMaximumRange(double max)
double	getRoundedMinimumRange(double min)
protected double	log(double value)
javafx.beans.property.DoubleProperty	logarithmBaseProperty()	Base of the logarithm used by the axis, must be grater than 1.
protected double	pow(double value)
void	setLogarithmBase(double value)	Sets value of the logarithmBaseProperty().
void	setMaximumRange(double val)
void	setMinimumRange(double val)

Methods inherited from class de.gsi.chart.axes.spi.transforms.AbstractAxisTransform

getMaximumRange, getMinimumRange

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_LOGARITHM_BASE

public static final double DEFAULT_LOGARITHM_BASE

See Also:

Constant Field Values

DEFAULT_LOG_MIN_VALUE

public static final double DEFAULT_LOG_MIN_VALUE

See Also:

Constant Field Values

DB20_LOGARITHM_BASE

public static final double DB20_LOGARITHM_BASE

DB10_LOGARITHM_BASE

public static final double DB10_LOGARITHM_BASE

Constructor Detail

LogarithmicAxisTransform

public LogarithmicAxisTransform(Axis axis)

Method Detail

backward

public double backward(double val)

Description copied from interface: AxisTransform

default backward transform for affine functions: backward(forward(val)) = forward(backward(val)) = val;

Parameters:

val - input value

Returns:

output value

forward

public double forward(double val)

Description copied from interface: AxisTransform

default forward transform for affine functions: backward(forward(val)) = forward(backward(val)) = val;

Parameters:

val - input value

Returns:

output value

getLogarithmBase

public double getLogarithmBase()

Returns the value of the logarithmBaseProperty().

Returns:

base of the logarithm

getRoundedMaximumRange

public double getRoundedMaximumRange(double max)

getRoundedMinimumRange

public double getRoundedMinimumRange(double min)

log

protected double log(double value)

logarithmBaseProperty

public javafx.beans.property.DoubleProperty logarithmBaseProperty()

Base of the logarithm used by the axis, must be grater than 1.

Default value: 10

Returns:

base of the logarithm

pow

protected double pow(double value)

setLogarithmBase

public void setLogarithmBase(double value)

Sets value of the logarithmBaseProperty().

Parameters:

value - base of the logarithm, value > 1

setMaximumRange

public void setMaximumRange(double val)

Specified by:

setMaximumRange in interface AxisTransform

Overrides:

setMaximumRange in class AbstractAxisTransform

setMinimumRange

public void setMinimumRange(double val)

Specified by:

setMinimumRange in interface AxisTransform

Overrides:

setMinimumRange in class AbstractAxisTransform