ilog.views.chart

Class IlvLocalZoomAxisTransformer

java.lang.Object

ilog.views.chart.IlvAxisTransformer

ilog.views.chart.IlvLocalZoomAxisTransformer

All Implemented Interfaces:

Serializable

public class IlvLocalZoomAxisTransformer
extends IlvAxisTransformer

Implements a local zoom on a coordinate.

The following picture shows the effect of an IlvLocalZoomAxisTransformer set on the x-axis:

Since:

JViews 5.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
IlvLocalZoomAxisTransformer(double zoomWindowMin, double zoomWindowMax, double zoomFactor, boolean continuous) Creates a new local zoom transformer with the specified zoom window, zoom factor, and continuous property.
IlvLocalZoomAxisTransformer(IlvDataInterval zoomRange, double zoomFactor, boolean continuous) Creates a new local zoom transformer with the specified zoom window, zoom factor, and continuous property.

Method Summary

Modifier and Type	Method and Description
double	apply(double v) Applies the transformation to the specified value.
double[]	apply(double[] values, int count) Applies the transformation to the specified values.
IlvDataInterval	getTransformedRange() Returns the transformed zoom range.
double	getZoomFactor() Returns the zoom factor.
IlvDataInterval	getZoomRange() Returns the zoom range.
double	inverse(double v) Applies the inverse transformation to the specified value.
boolean	isContinuous() Indicates whether the local zoom is continuous.
void	setContinuous(boolean continuous) Modifies the continuity of the local zoom.
boolean	setZoomFactor(double zoomFactor) Sets the zoom factor.
boolean	setZoomRange(double start, double end) Sets the zoom range.
boolean	validateInterval(IlvDataInterval itv) Modifies the specified interval so that it is consistent with the definition domain of the transformation.

Methods inherited from class ilog.views.chart.IlvAxisTransformer

apply, getAxis, inverse, inverse, transformerChanged

Methods inherited from class java.lang.Object

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

Constructor Detail

IlvLocalZoomAxisTransformer

public IlvLocalZoomAxisTransformer(IlvDataInterval zoomRange,
                                   double zoomFactor,
                                   boolean continuous)

Creates a new local zoom transformer with the specified zoom window, zoom factor, and continuous property.

Since:

JViews 5.5

IlvLocalZoomAxisTransformer

public IlvLocalZoomAxisTransformer(double zoomWindowMin,
                                   double zoomWindowMax,
                                   double zoomFactor,
                                   boolean continuous)

Creates a new local zoom transformer with the specified zoom window, zoom factor, and continuous property.

Method Detail

getZoomRange

public final IlvDataInterval getZoomRange()

Returns the zoom range.

setZoomRange

public boolean setZoomRange(double start,
                            double end)

Sets the zoom range.

getZoomFactor

public final double getZoomFactor()

Returns the zoom factor.

setZoomFactor

public boolean setZoomFactor(double zoomFactor)

Sets the zoom factor.

isContinuous

public final boolean isContinuous()

Indicates whether the local zoom is continuous.

setContinuous

public void setContinuous(boolean continuous)

Modifies the continuity of the local zoom.

getTransformedRange

public IlvDataInterval getTransformedRange()

Returns the transformed zoom range.

apply

public double apply(double v)
             throws IlvAxisTransformerException

Applies the transformation to the specified value.

Specified by:

apply in class IlvAxisTransformer

Parameters:

v - The considered value.

Returns:

The transformed value.

Throws:

IlvAxisTransformerException - If the transformation of the specified value could not be properly computed.

See Also:

inverse(double)

apply

public double[] apply(double[] values,
                      int count)
               throws IlvAxisTransformerException

Applies the transformation to the specified values. The default implementation calls apply(double) for each value. It can be overridden to provide a more efficient implementation.

Overrides:

apply in class IlvAxisTransformer

Parameters:

values - The considered values. The method modifies the contents of this array and returns it.

count - The number of values that must be transformed.

Returns:

The transformed values.

Throws:

IlvAxisTransformerException

inverse

public double inverse(double v)
               throws IlvAxisTransformerException

Applies the inverse transformation to the specified value.

Specified by:

inverse in class IlvAxisTransformer

Parameters:

v - The considered value.

Returns:

The inverse transformed value.

Throws:

IlvAxisTransformerException - If the inverse transformation of the specified value could not be properly computed.

validateInterval

public boolean validateInterval(IlvDataInterval itv)

Modifies the specified interval so that it is consistent with the definition domain of the transformation.

Overrides:

validateInterval in class IlvAxisTransformer

Parameters:

itv - The interval to validate. This interval is modified so that it contains the zoom window.

Returns:

A boolean value indicating whether the interval was modified.