org.jplot2d.transform

Class NormalTransform

java.lang.Object

org.jplot2d.transform.NormalTransform

Direct Known Subclasses:

LinearNormalTransform, LogarithmicNormalTransform

public abstract class NormalTransform
extends java.lang.Object

Immutable! Transform between value range and normalized range [0, 1].

Field Summary

Fields

Modifier and Type	Field and Description
static Range	NORMAL_RANGE

Method Summary

Modifier and Type	Method and Description
abstract double	convFromNR(double p) Transform a value from normalized range to value range.
Range	convFromNR(Range prange)
abstract double	convToNR(double u) Transform from value range to normalized range.
Range	convToNR(Range wrange)
abstract Transform1D	createTransform(double d1, double d2) Create a Transform1D by assign a dest range.
abstract NormalTransform	deriveNoOffset() Derive a new NormalTransform with offset set to 0;
abstract double	getMinPSpan4PrecisionLimit(double pLo, double pHi, double precisionLimit)
abstract double	getOffset()
abstract double	getScale()
abstract TransformType	getType()
abstract Range	getValueRange() Returns the value range of this transform.
abstract NormalTransform	invert()
boolean	isInverted()
java.lang.String	toString()
abstract NormalTransform	zoom(Range npr)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NORMAL_RANGE

public static final Range NORMAL_RANGE

Method Detail

getType

public abstract TransformType getType()

getScale

public abstract double getScale()

getOffset

public abstract double getOffset()

deriveNoOffset

public abstract NormalTransform deriveNoOffset()

Derive a new NormalTransform with offset set to 0;

Returns:

the derived NormalTransform

zoom

public abstract NormalTransform zoom(Range npr)

isInverted

public boolean isInverted()

invert

public abstract NormalTransform invert()

convToNR

public abstract double convToNR(double u)

Transform from value range to normalized range.

Parameters:

u - the value

Returns:

normalized value

convFromNR

public abstract double convFromNR(double p)

Transform a value from normalized range to value range.

Parameters:

p - normalized value

Returns:

world value

convToNR

public Range convToNR(Range wrange)

convFromNR

public Range convFromNR(Range prange)

getValueRange

public abstract Range getValueRange()

Returns the value range of this transform.

Returns:

the value range

getMinPSpan4PrecisionLimit

public abstract double getMinPSpan4PrecisionLimit(double pLo,
                                                  double pHi,
                                                  double precisionLimit)

createTransform

public abstract Transform1D createTransform(double d1,
                                            double d2)

Create a Transform1D by assign a dest range.

Parameters:

d1 - the start value of dest range

d2 - the end value of dest range

Returns:

a Transform1D

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object