Implementation of circular scales. More...

#include <ilviews/charts/scaledis.h>

Inheritance diagram for IlvCircularScaleDisplayer:

Public Member Functions
	IlvCircularScaleDisplayer (IlvCoordinateInfo coordInfo, IlvPalette defaultPalette)
	Constructor. More...

	IlvCircularScaleDisplayer (IlvCoordinateInfo coordInfo, IlUInt stepsCount, const char const stepLabels, IlUInt subStepsCount, IlvPalette defaultPalette)
	Constructor. More...

virtual IlvAbstractChartCursor *	createCursor (const IlvSingleScaleDisplayer *scaleRef=0) const
	Factory method to create a default cursor. More...

virtual IlvAbstractGridDisplayer *	createGridDisplayer (const IlvSingleScaleDisplayer *scaleRef=0) const
	Factory method to create a default grid. More...

Public Member Functions inherited from IlvSingleScaleDisplayer
virtual	~IlvSingleScaleDisplayer ()
	Destructor. More...

void	addCursor (IlvAbstractChartCursor *cursor, IlUInt position=IlvLastPositionIndex)
	Adds a cursor to the scale. More...

IlBoolean	areMajorTicksVisible () const
	Indicates whether the major ticks are visible. More...

IlBoolean	areMinorTicksVisible () const
	Indicates whether the minor ticks are visible. More...

IlBoolean	areStepLabelsVisible () const
	Indicates whether the step labels are visible. More...

virtual char *	computeStepLabel (IlDouble value) const
	Computes and returns the label associated with a data value. More...

virtual void	drawLabelOnCrossings (IlBoolean b)
	Indicates whether the labels should be drawn where the axes intersect. More...

virtual void	drawOverlappingLabels (IlBoolean b)
	Sets whether overlapping labels are allowed. More...

IlvDim	getArrowLength () const
	Returns the arrow length. More...

IlvDim	getArrowWidth () const
	Returns the arrow width. More...

const char *	getAxisLabel () const
	Returns the label of the axis. More...

IlvDim	getAxisLabelOffset () const
	Returns the offset between the scale axis and its label. More...

IlvPalette *	getAxisLabelPalette () const
	Returns the palette used to draw the axis label. More...

void	getAxisLabelSizes (IlvDim &width, IlvDim &height, IlvDim &descent) const
	Returns the sizes of the axis label. More...

IlvPalette *	getAxisPalette () const
	Returns the palette used to draw the axis. More...

IlvConstantScaleStepsUpdater *	getConstantStepsUpdater () const
	Returns the constant scale steps updater (if any) used by the current scale. More...

virtual IlvCoordinateInfo *	getCoordinateInfo (IlUInt index=0) const
	Deprecated More...

virtual IlvCoordinateType	getCoordinateType () const
	Returns the type of the coordinate represented by the current scale. More...

IlvAbstractChartCursor *	getCursor (IlUInt index) const
	Returns the cursor at a given index. More...

IlvAbstractChartCursor *	getCursorByName (const char *name) const
	Returns a cursor with a given name. More...

IlUInt	getCursorsCount () const
	Returns the number of cursors connected to the scale. More...

IlvAbstractGridDisplayer *	getGridDisplayer () const
	Deprecated Returns the associated grid. More...

LabelLayout	getLabelLayout () const
	Returns the label layout on the scale axis. More...

IlvDim	getMajorTickSize () const
	Returns the size of the major ticks. More...

IlvDim	getMinorTickSize () const
	Returns the size of the minor ticks. More...

IlvDim	getOffset () const
	Returns the offset between the steps and the step labels. More...

const char *	getStepLabel (IlUInt iStep) const
	Returns the label of a given step. More...

IlDouble	getStepLabelAngle () const
	Returns the angle of the step labels. More...

void	getStepLabelBBox (const IlvProjectorArea &dataArea, IlUInt iStep, IlvRect &bbox) const
	Returns the bounding box of a step label. More...

const char *	getStepLabelFormat () const
	Returns the format used to draw the step labels. More...

const char const	getStepLabels (IlUInt &labelsCount) const
	Returns the labels of the major steps. More...

IlUInt	getStepLabelsCount () const
	Returns the number of step labels. More...

void	getStepLabelSizes (IlUInt iStep, IlvDim &width, IlvDim &height, IlvDim &descent) const
	Returns the sizes of a given step label. More...

IlvPalette *	getStepLabelsPalette () const
	Returns the palette used to draw the step labels. More...

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

void	getStepSubStepValues (IlUInt &stepsCount, const IlDouble &stepValues, const char const &stepLabels, IlUInt &subStepsCount, const IlDouble &subStepValues) const
	Returns the values and labels associated with the scale steps. More...

IlvScaleStepsUpdater *	getStepsUpdater () const
	Returns the scale steps updater used by the current scale. More...

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

IlDouble	getStepValue (IlUInt iStep) const
	Returns the value associated with a major step. More...

const IlDouble *	getStepValues (IlUInt &count) const
	Returns the values associated with the major steps. More...

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

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

IlDouble	getSubStepValue (IlUInt iSubStep) const
	Returns the value associated with a minor step. More...

const IlDouble *	getSubStepValues (IlUInt &count) const
	Returns the values associated with the minor steps. More...

TickLayout	getTickLayout () const
	Returns the tick layout on the scale axis. More...

IlUInt	getTotalSubStepsCount () const
	Returns the total number of minor steps. More...

IlvValueToLabelCB	getValueToLabelCB () const
	Returns the conversion callback between data values and step labels. More...

IlAny	getValueToLabelCBData () const
	Returns the information parameter associated with the conversion callback between data values and step labels. More...

IlBoolean	hasCursor (const IlvAbstractChartCursor *cursor) const
	Checks whether a given cursor is connected to the scale. More...

IlBoolean	isAxisOriented () const
	Indicates whether the axis is oriented. More...

IlBoolean	isAxisVisible () const
	Indicates whether the axis is visible. More...

IlBoolean	isDrawingLabelOnCrossings () const
	Sets whether the step labels are drawn where the axes intersect. More...

IlBoolean	isDrawingOverlappingLabels () const
	Indicates whether overlapping labels should be drawn. More...

virtual IlBoolean	isOnAbscissa () const
	Indicates whether the scale is connected to the abscissa coordinate system. More...

virtual IlBoolean	isOnOrdinate () const
	Indicates whether the scale is connected to an ordinate coordinate system. More...

IlvAbstractChartCursor *	removeCursor (IlvAbstractChartCursor *cursor)
	Removes a cursor from the scale. More...

void	removeCursors ()
	Removes and deletes all the associated cursors.

virtual void	setArrowLength (IlvDim length)
	Sets the arrow length. More...

virtual void	setArrowWidth (IlvDim width)
	Sets the arrow width. More...

void	setAxisLabel (const char *label)
	Sets the label of the axis. More...

virtual void	setAxisLabelOffset (IlvDim offset)
	Sets the offset between the scale axis and its label. More...

virtual void	setAxisLabelPalette (IlvPalette *pal)
	Sets the palette used to draw the axis label. More...

virtual void	setAxisOriented (IlBoolean o)
	Indicates whether the scale should be oriented. More...

virtual void	setAxisPalette (IlvPalette *pal)
	Sets the palette used to draw the axis. More...

void	setAxisVisible (IlBoolean visible)
	Sets the visibility of the axis. More...

void	setGridDisplayer (IlvAbstractGridDisplayer *grid)
	Deprecated Sets the associated grid. More...

virtual void	setGridDrawOrder (IlvDrawOrder drawOrder)
	Sets the drawing order for the associated grid. More...

virtual void	setLabelZoomFactor (IlDouble scale)
	Set the scaling (zooming) factor to be applied on labels.

virtual void	setMajorTickSize (IlvDim val)
	Sets the size of the major ticks. More...

void	setMajorTicksVisible (IlBoolean visible)
	Sets the visibility of the major ticks. More...

virtual void	setMinorTickSize (IlvDim val)
	Sets the size of the minor ticks. More...

void	setMinorTicksVisible (IlBoolean visible)
	Sets the visibility of the minor ticks. More...

virtual void	setOffset (IlvDim dim)
	Sets the offset between the ticks and the step labels. More...

virtual void	setStepLabel (IlUInt labelIndex, const char *label)
	Sets the label for a given step by hand. More...

virtual void	setStepLabelAngle (IlDouble angle)
	Sets the angle of the step labels. More...

virtual void	setStepLabelFormat (const char *format, IlBoolean invalidate=IlTrue)
	Sets the format used to translate data values into step labels. More...

virtual void	setStepLabels (IlUInt count, const char const labels=0)
	Sets the step labels by hand. More...

virtual void	setStepLabelsPalette (IlvPalette *pal)
	Sets the palette used to draw the step labels. More...

void	setStepLabelsVisible (IlBoolean visible)
	Sets the visibility of the step labels. More...

virtual void	setTickLayout (TickLayout layout)
	Sets the tick layout on the scale axis. More...

virtual void	setValueToLabelCB (IlvValueToLabelCB cb, IlAny cbData=0)
	Sets a conversion callback between data values and step labels. More...

virtual void	write (IlvOutputFile &) const
	Writes the attributes of the current object in a file. More...

Public Member Functions inherited from IlvAbstractScaleDisplayer
virtual	~IlvAbstractScaleDisplayer ()
	Destructor. More...

virtual IlvAbstractScaleDisplayer *	copy () const =0
	Virtual copy constructor. More...

IlBoolean	getCrossingValue (IlDouble &dataValue) const
	Returns the data value to which the scale is actually fixed. More...

IlvDrawOrder	getDrawOrder () const
	Returns the drawing order for the current scale. More...

IlvCoordinateInfo *	getInfoForCrossingValue () const
	Returns the coordinate information used to position the scale. More...

const char *	getName () const
	Returns the name of the scale. More...

IlBoolean	getRelativePosition (IlvAxisPosition &relPos, IlvPos &offset) const
	Returns the relative position to which the scale is fixed. More...

IlDouble	getStoredCrossingValue () const
	Returns the stored value to which the scale is fixed. More...

IlBoolean	isAlwaysVisible () const
	Indicates whether the current scale must always appear on the screen. More...

IlBoolean	isFixedToPosition () const
	Indicates whether the scale is fixed to a position. More...

IlBoolean	isInVisibleDataArea () const
	Indicates whether the scale is in the visible data area. More...

IlBoolean	isVisible () const
	Indicates whether the scale is visible. More...

IlvOutputFile &	save (IlvOutputFile &file) const
	Writes a complete description of the current object in a file. More...

virtual void	setAlwaysVisible (IlBoolean b)
	Specifies whether the current scale must always appear on the screen. More...

virtual IlBoolean	setCrossingValue (IlDouble dataValue, const IlvSingleScaleDisplayer *ref)
	Sets the data value to which this scale is fixed. More...

virtual void	setDrawOrder (IlvDrawOrder drawOrder)
	Sets the drawing order for the current scale. More...

virtual void	setLabelLayout (LabelLayout layout)=0
	Sets the label layout on the scale axis. More...

void	setName (const char *name)
	Sets the name of the scale. More...

virtual void	setRelativePosition (IlvAxisPosition relPos, IlvPos offset=0)
	Sets the position to which this scale is fixed. More...

void	setVisible (IlBoolean visible)
	Sets the visibility of the scale. More...

Additional Inherited Members
Public Types inherited from IlvAbstractScaleDisplayer
enum	LabelLayout { LabelInside, LabelOutside }
	This enumeration type defines the label layout on the scale axis. More...

enum	TickLayout { TickInside, TickOutside, TickCross }
	This enumeration type defines the tick layout on the scale axis. More...

Static Public Member Functions inherited from IlvAbstractScaleDisplayer
static IlvAbstractScaleDisplayer *	Load (IlvInputFile &file)
	Reads a scale object from a file. More...

Protected Member Functions inherited from IlvSingleScaleDisplayer
	IlvSingleScaleDisplayer (IlvCoordinateInfo coordInfo, IlvPalette defaultPalette)
	Constructor. More...

	IlvSingleScaleDisplayer (IlvCoordinateInfo coordInfo, IlUInt nbSteps, const char const stepLabels, IlUInt nbSubStepsBetween, IlvPalette defaultPalette)
	Constructor. More...

	IlvSingleScaleDisplayer (const IlvSingleScaleDisplayer &src)
	Constructor. More...

	IlvSingleScaleDisplayer (IlvInputFile &file)
	Constructor. More...

IlDouble	getStepDataMax () const
	Returns the data value associated with the last step of the scale. More...

IlDouble	getStepDataMin () const
	Returns the data value associated with the first step of the scale. More...

Detailed Description

Implementation of circular scales.

Library: ilvcharts

This class is a subclass of IlvSingleScaleDisplayer that allows you to display a scale with a circular axis.

Note: A circular scale can only be used with a polar projector.

See Also: IlvSingleScaleDisplayer.

Constructor & Destructor Documentation

IlvCircularScaleDisplayer::IlvCircularScaleDisplayer	(	IlvCoordinateInfo *	coordInfo,
		IlvPalette *	defaultPalette
	)

Constructor.

Initializes a new IlvCircularScaleDisplayer object.

Parameters

coordInfo	The coordinate information to which the scale is connected.
defaultPalette	The default palette used to draw the various parts of the scale (axis, step labels, axis label). Each individual part can be assigned a different palette afterwards.

IlvCircularScaleDisplayer::IlvCircularScaleDisplayer	(	IlvCoordinateInfo *	coordInfo,
		IlUInt	stepsCount,
		const char const	stepLabels,
		IlUInt	subStepsCount,
		IlvPalette *	defaultPalette
	)

Constructor.

Initializes a new IlvCircularScaleDisplayer object.

Parameters

coordInfo	The coordinate information to which the scale is connected.
stepsCount	The number of major steps.
stepLabels	The labels of the major steps.
subStepsCount	The number of minor steps between two major steps.
defaultPalette	The default palette used to draw the various parts of the scale (axis, step labels, axis label). Each individual part can be assigned a different palette afterwards.

See Also: IlvAbstractScaleDisplayer::setStepLabels().

Member Function Documentation

virtual IlvAbstractChartCursor* IlvCircularScaleDisplayer::createCursor ( const IlvSingleScaleDisplayer * scaleRef = 0 ) const

virtual

Factory method to create a default cursor.

The default implementation returns an instance of IlvRadialChartCursor.

Parameters

scaleRef The scale that can be used as a reference for the created cursor to indicate where the cursor line must stop.

Returns: The created cursor.

Note: The reference scale is used by default only for circular cursors.

Implements IlvSingleScaleDisplayer.

virtual IlvAbstractGridDisplayer* IlvCircularScaleDisplayer::createGridDisplayer ( const IlvSingleScaleDisplayer * scaleRef = 0 ) const

virtual

Factory method to create a default grid.

The default implementation returns an instance of IlvRadialGridDisplayer.

Parameters

scaleRef The scale that can be used as a reference for the created grid to indicate where the grid lines must stop.

Returns: The created grid.

Note: The reference scale is used by default only for circular grids.

Implements IlvSingleScaleDisplayer.

Rogue Wave ViewsCharts Package API Reference Guide

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Rogue Wave Views
Charts Package API Reference Guide