Class for computing the graduations of a scale. More...

#include <ilviews/charts/scaledis.h>

Inheritance diagram for IlvAutoScaleStepsUpdater:

Public Member Functions
	IlvAutoScaleStepsUpdater (IlvSingleScaleDisplayer *scale, IlDouble precision, IlvDim stepsSpacing=10, IlDouble precisionBase=10., IlBoolean autoSubSteps=IlTrue)
	Constructor. More...

	IlvAutoScaleStepsUpdater (IlvSingleScaleDisplayer *scale, IlvDim stepsSpacing=10, IlBoolean autoSubSteps=IlTrue, IlBoolean autoLabelFormat=IlTrue)
	Constructor. More...

IlBoolean	getAutoLabelFormat () const
	Indicates whether the step label format is automatically computed. More...

IlBoolean	getAutoPrecision () const
	Indicates whether the precision is automatically computed. More...

IlBoolean	getAutoSubSteps () const
	Indicates whether the substeps are automatically computed. More...

IlDouble	getPrecision () const
	Returns the precision. More...

IlDouble	getPrecisionBase () const
	Returns the precision base. More...

IlvDim	getStepsSpacing () const
	Returns the steps spacing. More...

virtual void	getStepSubStepValues (const IlvProjectorArea &area, IlUInt &stepsCount, IlDouble &stepValues, IlUInt &subStepsCount, IlDouble &subStepValues) const
	Computes and returns the step and substep values for the associated scale. More...

void	setAutoLabelFormat (IlBoolean autoLabelFormat)
	Specifies whether the step label format is automatically computed. More...

void	setAutoPrecision (IlBoolean autoPrecision)
	Specifies whether the precision is automatically computed. More...

void	setAutoSubSteps (IlBoolean autoSubSteps, IlUInt subStepsCount=0)
	Specifies whether the substeps are automatically computed. More...

void	setPrecision (IlDouble precision, IlDouble precisionBase=10.)
	Sets the precision and the precision base. More...

void	setStepsSpacing (IlvDim stepsSpacing)
	Sets the steps spacing. More...

Public Member Functions inherited from IlvConstantScaleStepsUpdater
	IlvConstantScaleStepsUpdater (IlvSingleScaleDisplayer *scale)
	Constructor. More...

	IlvConstantScaleStepsUpdater (IlvSingleScaleDisplayer *scale, IlUInt stepsCount, IlUInt subStepsCount=0)
	Constructor. More...

	IlvConstantScaleStepsUpdater (IlvSingleScaleDisplayer *scale, IlDouble stepUnit, IlDouble subStepUnit=0.)
	Constructor. More...

virtual IlBoolean	checkRange (IlvCoordInterval &range) const
	Checks whether an interval is valid with respect to the step definition. More...

void	fixStepsCount (IlUInt stepsCount, IlUInt subStepsCount)
	Sets the number of steps and the number of substeps between two steps. More...

void	fixStepUnit (IlDouble stepUnit, IlDouble subStepUnit)
	Sets the step unit and the substep unit. More...

IlDouble	getFirstStepData () const
	Returns the data value associated with the first major step. More...

IlDouble	getLastStepData () const
	Returns the data value associated with the last major step. More...

IlUInt	getStepsCount () const
	Returns the number of major steps. More...

IlDouble	getStepUnit () const
	Returns the step unit. More...

IlUInt	getSubStepsCount () const
	Returns the number of minor steps between two major steps. More...

IlDouble	getSubStepUnit () const
	Returns the substep unit. More...

IlBoolean	isFirstStepDataDefined () const
	Indicates whether a data value is associated with the first major step. More...

IlBoolean	isLastStepDataDefined () const
	Indicates whether a data value is associated with the last major step. More...

void	setFirstStepData (IlDouble value)
	Sets the data value associated with the first major step. More...

void	setLastStepData (IlDouble value)
	Sets the data value associated with the last major step. More...

Public Member Functions inherited from IlvScaleStepsUpdater
virtual char *	computeStepLabel (IlDouble value) const
	Computes and returns the label displayed for a given data value. More...

IlvCoordinateInfo *	getCoordinateInfo () const
	Deprecated More...

IlvSingleScaleDisplayer *	getScale () const
	Returns the scale associated with the current scale steps updater. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvScaleStepsUpdater
static IlvScaleStepsUpdater *	Get (const IlvSingleScaleDisplayer *scale)
	Returns the scale steps updater set on a given scale. More...

static IlvScaleStepsUpdater *	Remove (IlvSingleScaleDisplayer *scale)
	Removes the scale steps updater set on a given scale. More...

static IlvScaleStepsUpdater *	Set (IlvSingleScaleDisplayer scale, IlvScaleStepsUpdater updater)
	Sets a scale steps updater on a given scale. More...

Protected Member Functions inherited from IlvScaleStepsUpdater
	IlvScaleStepsUpdater (IlvSingleScaleDisplayer *scale)
	Constructor. More...

Detailed Description

Class for computing the graduations of a scale.

Library: ilvcharts

IlvAutoScaleStepsUpdater is a subclass of IlvConstantScaleStepsUpdater that allows you to perform an automatic computation of the steps and the substeps of a scale.

See also: IlvConstantScaleStepsUpdater, IlvSingleScaleDisplayer.

Constructor & Destructor Documentation

§ IlvAutoScaleStepsUpdater() [1/2]

IlvAutoScaleStepsUpdater::IlvAutoScaleStepsUpdater	(	IlvSingleScaleDisplayer *	scale,
		IlDouble	precision,
		IlvDim	stepsSpacing = `10`,
		IlDouble	precisionBase = `10.`,
		IlBoolean	autoSubSteps = `IlTrue`
	)

Constructor.

Initializes a new IlvAutoScaleStepsUpdater object. By default, the step label format is not automatically computed.

Parameters

scale	The scale associated with the current scale steps updater.
precision	The precision used to compute the step values.
stepsSpacing	The minimum spacing that is left between two steps.
precisionBase	The precision base used to compute the step values.
autoSubSteps	The Boolean value indicating whether the number of substeps is automatically computed.

§ IlvAutoScaleStepsUpdater() [2/2]

IlvAutoScaleStepsUpdater::IlvAutoScaleStepsUpdater	(	IlvSingleScaleDisplayer *	scale,
		IlvDim	stepsSpacing = `10`,
		IlBoolean	autoSubSteps = `IlTrue`,
		IlBoolean	autoLabelFormat = `IlTrue`
	)

Constructor.

Initializes a new IlvAutoScaleStepsUpdater object. By default, the precision is automatically computed and the precision base is set to 10.

Parameters

scale	The scale associated with the current scale steps updater.
stepsSpacing	The minimum spacing that is left between two steps.
autoSubSteps	The Boolean value indicating whether the number of substeps is automatically computed.
autoLabelFormat	The Boolean value indicating whether the step label format is automatically computed.

Member Function Documentation

§ getAutoLabelFormat()

IlBoolean IlvAutoScaleStepsUpdater::getAutoLabelFormat ( ) const

Indicates whether the step label format is automatically computed.

Returns: IlTrue if the step label format is automatically computed and IlFalse otherwise.

§ getAutoPrecision()

IlBoolean IlvAutoScaleStepsUpdater::getAutoPrecision ( ) const

Indicates whether the precision is automatically computed.

Returns: IlTrue if the precision is automatically computed and IlFalse otherwise.

§ getAutoSubSteps()

IlBoolean IlvAutoScaleStepsUpdater::getAutoSubSteps ( ) const

Indicates whether the substeps are automatically computed.

Returns: IlTrue if the substeps are automatically computed and IlFalse otherwise.

§ getPrecision()

IlDouble IlvAutoScaleStepsUpdater::getPrecision ( ) const

Returns the precision.

Returns: The precision used to compute automatically the step values.

§ getPrecisionBase()

IlDouble IlvAutoScaleStepsUpdater::getPrecisionBase ( ) const

Returns the precision base.

Returns: The precision base used to compute automatically the step values.

§ getStepsSpacing()

IlvDim IlvAutoScaleStepsUpdater::getStepsSpacing ( ) const

Returns the steps spacing.

Returns: The minimum spacing between two steps.

§ getStepSubStepValues()

virtual void IlvAutoScaleStepsUpdater::getStepSubStepValues	(	const IlvProjectorArea &	area,
		IlUInt &	stepsCount,
		IlDouble *&	stepValues,
		IlUInt &	subStepsCount,
		IlDouble *&	subStepValues
	)		const

virtual

Computes and returns the step and substep values for the associated scale.

Parameters

area	The data area definition. This data area definition can be retrieved with the `IlvChartGraphic::getProjectorArea()` method.
stepsCount	Returns the number of major steps.
stepValues	Returns the values associated with the major steps.
subStepsCount	Returns the number of minor steps.
subStepValues	Returns the values associated with the minor steps.

Reimplemented from IlvConstantScaleStepsUpdater.

§ setAutoLabelFormat()

void IlvAutoScaleStepsUpdater::setAutoLabelFormat ( IlBoolean autoLabelFormat )

Specifies whether the step label format is automatically computed.

Parameters

autoLabelFormat The new value of the flag indicating whether the step label format is automatically computed.

§ setAutoPrecision()

void IlvAutoScaleStepsUpdater::setAutoPrecision ( IlBoolean autoPrecision )

Specifies whether the precision is automatically computed.

Parameters

autoPrecision The new value of the flag indicating whether the precision is automatically computed.

§ setAutoSubSteps()

void IlvAutoScaleStepsUpdater::setAutoSubSteps	(	IlBoolean	autoSubSteps,
		IlUInt	subStepsCount = `0`
	)

Specifies whether the substeps are automatically computed.

Parameters

autoSubSteps	The new value of the flag indicating whether the substeps are automatically computed.
subStepsCount	The defined substeps count, if the substeps count is not automatically computed.

§ setPrecision()

void IlvAutoScaleStepsUpdater::setPrecision	(	IlDouble	precision,
		IlDouble	precisionBase = `10.`
	)

Sets the precision and the precision base.

Parameters

precision	The new precision.
precisionBase	The new precision base.

§ setStepsSpacing()

void IlvAutoScaleStepsUpdater::setStepsSpacing ( IlvDim stepsSpacing )

Sets the steps spacing.

Parameters

stepsSpacing The new minimum spacing between two steps.

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

§ IlvAutoScaleStepsUpdater() [1/2]

§ IlvAutoScaleStepsUpdater() [2/2]

Member Function Documentation

§ getAutoLabelFormat()

§ getAutoPrecision()

§ getAutoSubSteps()

§ getPrecision()

§ getPrecisionBase()

§ getStepsSpacing()

§ getStepSubStepValues()

§ setAutoLabelFormat()

§ setAutoPrecision()

§ setAutoSubSteps()

§ setPrecision()

§ setStepsSpacing()