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Navigation: Code Documentation > RSCharting > RSBubbleCharts > Classes

TRSBubbleChart Class

The TRSBubbleChart component is a RSChartPanel.TRSCustomChart descendant that represents a bubble chart.

BubbleChartExample

Each chart value ( RSBubbleCharts.TRSBubbleChartValue ) is displayed as one bubble in the bubble chart. The size of the bubbles can represent the area of the bubbles or the diameter of the bubble (controlled by the SizeOption property of TRSBubbleChartValues), which affects the relative size of one bubble to another.

Bubble sizes can be negative values, although negative bubbles do not display in the chart by default ( NegativeSizeVisible must be true). When negative bubble sizes are displayed, they use their absolute size and are always drawn using the NegativeSizeColor.

Important Note
Note that for drawing purposes, the bubble size is proportional to the greatest bubble size in the collection of bubbles. Only the largest bubble is drawn with its correct diameter or area.

Note
Charts are TGraphicControl descendants for VCL and TControl descendants for FMX. Display charts on a chart panel (with integrated axes, legend, header, footers, etc) or stand-alone (allowing use of FMX effects or embedding within other controls). Set the Panel property to the RSChartPanel.TRSChartPanel you want the chart displayed inside or nil for stand-alone use.

Namespace: RSBubbleCharts

Name

Description

published property

Align

Represents property Align. (Inherited from RSCharts.TRSChart.)

published property

Alignment

Specifies the location to draw the caption on the bubble.

published property

Anchors

Represents property Anchors. (Inherited from RSCharts.TRSChart.)

protected property

AxesHints

(Inherited from RSChartPanel.TRSCustomChart.)

published property

Brush

Represents property Brush. (Inherited from RSCharts.TRSChart.)

published property

Caption

Represents property Caption. (Inherited from RSCharts.TRSChart.)

published property

Color

Represents property Color. (Inherited from RSCharts.TRSChart.)

public property

ColorList

Defines the color list to use when new chart values are created. When a chart value is created and a color is not specified, the object will get a new color based on the next color in the list. If the list is at the end, the new color will be the first color in the list.

Set the ColorList property directly to define your own custom color scheme. Set the ColorScheme property to use one of the predefined color lists.

Note
The new color list will be applied to the existing chart values.

published property

ColorScheme

Represents property ColorScheme. (Inherited from RSCharts.TRSChart.)

published property

Constraints

Represents property Constraints. (Inherited from RSCharts.TRSChart.)

public property

Cursor

Specifies the Cursor to display when the mouse is over the chart (Inherited from RSChartPanel.TRSCustomChart.)

published property

Enabled

Represents property Enabled. (Inherited from RSCharts.TRSChart.)

public property

FirstIndex

The FirstIndex and the LastIndex properties define the indices of the Values that are currently being drawn in the chart.

Usually, these properties are equivalent to 0 for the FirstIndex and Values.Count-1 for the LastIndex. However, when the TRSChartPanel component has been zoomed, these properties reflect the point just before the first point in the zoomed area and the point just after the last point in the zoomed area (this ensures the visual aspect of the chart by allowing, for example, lines to be drawn into and out of the zoomed area. The FirstIndex and LastIndex properties provide more efficient access to only the values that are currently being drawn.

Note
For charts that don't have an easy visual ordering (such as a shape chart where depending on sizes things can overlap), the FirstIndex and LastIndex will be the entire Values collection.

published property

Font

Represents property Font. (Inherited from RSCharts.TRSChart.)

published property

Group

Represents property Group. (Inherited from RSCharts.TRSChart.)

public property

GroupIndex

Use the GroupIndex property to specify the ordering of the charts in a group at design time (Inherited from RSChartPanel.TRSCustomChart.)

published property

GroupStyle

Represents property GroupStyle. (Inherited from RSCharts.TRSChart.)

published property

HorizAxis

Represents property HorizAxis. (Inherited from RSCharts.TRSChart.)

published property

HorizontalAxis

Represents property HorizontalAxis. (Inherited from RSCharts.TRSChart.)

published property

ImageList

Lists the images available for points and shapes in the chart. ImageList is a list of bitmaps that can be displayed for any point in the chart. A point ( RSCharts.TRS2DImageChartValue item) is associated with an image from this image list by its ImageIndex property. This image will only appear for the point if the ImageIndex is valid for the list and the PointsInfo.Style is ssImage

public property

LastIndex

The FirstIndex and the LastIndex properties define the indices of the Values that are currently being drawn in the chart.

Note
For charts that don't have an easy visual ordering (such as a shape chart where depending on sizes things can overlap), the FirstIndex and LastIndex will be the entire Values collection.

public property

Listeners

Tracks the RSChartPanel.IChartPanelListeners which are listening for changes to this chart. The TRSCustomChart class uses this list to automatically notify listeners when the chart or its values change.

Add a class to this list in order for it to receive change events from the chart.

protected property

LocalHorizontalAxis

Represents property LocalHorizontalAxis. (Inherited from RSChartPanel.TRSCustomChart.)

protected property

LocalVerticalAxis

Represents property LocalVerticalAxis. (Inherited from RSChartPanel.TRSCustomChart.)

published property

MaxBubbleSize

Specifies the maximum bubble size as percentage (0-1) of the chart area

published property

MinBubbleSize

Specifies the minimum bubble size as percentage (0-1) of the chart area

published property

NegativeSizeColor

Defines the color to use for Bubbles that have sizes less than 0. Bubble sizes can be negative values, although negative bubbles do not display in the chart by default ( NegativeSizeVisible must be true). When negative bubble sizes are displayed, they use their absolute size and are always drawn using the NegativeSizeColor.

published property

NegativeSizeVisible

Specifies whether to display bubble that have sizes less than 0. Bubble sizes can be negative values, although negative bubbles do not display in the chart by default ( NegativeSizeVisible must be true). When negative bubble sizes are displayed, they use their absolute size and are always drawn using the NegativeSizeColor.

published property

OffsetVertical

Represents property OffsetVertical. (Inherited from RSCharts.TRSChart.)

published property

OnCanResize

Represents property OnCanResize. (Inherited from RSCharts.TRSChart.)

published property

OnChange

Represents property OnChange. (Inherited from RSCharts.TRSChart.)

published property

OnClick

Represents property OnClick. (Inherited from RSCharts.TRSChart.)

published property

OnConstrainedResize

Represents property OnConstrainedResize. (Inherited from RSCharts.TRSChart.)

published property

OnContextPopup

Represents property OnContextPopup. (Inherited from RSCharts.TRSChart.)

published property

OnDblClick

Represents property OnDblClick. (Inherited from RSCharts.TRSChart.)

published property

OnDragDrop

Represents property OnDragDrop. (Inherited from RSCharts.TRSChart.)

published property

OnDragOver

Represents property OnDragOver. (Inherited from RSCharts.TRSChart.)

published property

OnDraw

Represents property OnDraw. (Inherited from RSCharts.TRSChart.)

published property

OnDrawing

Represents property OnDrawing. (Inherited from RSCharts.TRSChart.)

published property

OnEndDock

Represents property OnEndDock. (Inherited from RSCharts.TRSChart.)

published property

OnEndDrag

Represents property OnEndDrag. (Inherited from RSCharts.TRSChart.)

published property

OnMouseActivate

Represents property OnMouseActivate. (Inherited from RSCharts.TRSChart.)

published property

OnMouseDown

Represents property OnMouseDown. (Inherited from RSCharts.TRSChart.)

published property

OnMouseEnter

Represents property OnMouseEnter. (Inherited from RSCharts.TRSChart.)

published property

OnMouseLeave

Represents property OnMouseLeave. (Inherited from RSCharts.TRSChart.)

published property

OnMouseMove

Represents property OnMouseMove. (Inherited from RSCharts.TRSChart.)

published property

OnMouseUp

Represents property OnMouseUp. (Inherited from RSCharts.TRSChart.)

published property

OnMouseWheel

Represents property OnMouseWheel. (Inherited from RSCharts.TRSChart.)

published property

OnMouseWheelDown

Represents property OnMouseWheelDown. (Inherited from RSCharts.TRSChart.)

published property

OnMouseWheelUp

Represents property OnMouseWheelUp. (Inherited from RSCharts.TRSChart.)

published property

OnResize

Represents property OnResize. (Inherited from RSCharts.TRSChart.)

published property

OnStartDock

Represents property OnStartDock. (Inherited from RSCharts.TRSChart.)

published property

OnStartDrag

Represents property OnStartDrag. (Inherited from RSCharts.TRSChart.)

published property

OnValueChange

Represents property OnValueChange. (Inherited from RSCharts.TRSChart.)

published property

OnValueSelectionChange

Represents property OnValueSelectionChange. (Inherited from RSCharts.TRSChart.)

published property

OnValueVisibleChange

Represents property OnValueVisibleChange. (Inherited from RSCharts.TRSChart.)

published property

OnVisibleChange

Represents property OnVisibleChange. (Inherited from RSCharts.TRSChart.)

published property

Opacity

Represents property Opacity. (Inherited from RSCharts.TRSChart.)

published property

Options

Represents property Options. (Inherited from RSCharts.TRSChart.)

published property

Panel

Represents property Panel. (Inherited from RSCharts.TRSChart.)

public property

PanelColorScheme

Specifies which color scheme to use when new chart values are created with default color values. If Panel is not nil and this property is True, then the chart panel's ChartColorScheme is used. Otherwise, the ColorScheme is used (Inherited from RSChartPanel.TRSCustomChart.)

published property

ParentFont

Represents property ParentFont. (Inherited from RSCharts.TRSChart.)

published property

ParentSelectionColor

Represents property ParentSelectionColor. (Inherited from RSCharts.TRSChart.)

published property

Pen

Represents property Pen. (Inherited from RSCharts.TRSChart.)

published property

PopupMenu

Represents property PopupMenu. (Inherited from RSCharts.TRSChart.)

published property

Preview

Represents property Preview. (Inherited from RSCharts.TRSChart.)

published property

SelectionColor

Represents property SelectionColor. (Inherited from RSCharts.TRSChart.)

published property

ShowHint

Represents property ShowHint. (Inherited from RSCharts.TRSChart.)

published property

SizeOption

Specifies whether sizes of the bubbles are interpreted to be diameter or area. The size of the bubbles can represent the area of the bubbles or the diameter of the bubble, which affects the relative size of one bubble to another.

protected property

State

Represents property State. (Inherited from RSChartPanel.TRSCustomChart.)

published property

Style

Defines the geometric shape used for every bubble in a bubble chart

published property

ValueLabelFormat

Represents property ValueLabelFormat. (Inherited from RSCharts.TRSChart.)

published property

ValueLabelStyle

Represents property ValueLabelStyle. (Inherited from RSCharts.TRSChart.)

published property

Values

The Values property contains all the bubbles in the bubble chart. Each bubble (TRSBubbleChartValue) may have its own Color and Caption. The size of the bubble is specified by the Size property. The size of the bubbles can represent the area of the bubbles or the diameter of the bubble (controlled by the SizeOption property of TRSBubbleChartValues), which affects the relative size of one bubble to another.

Bubble sizes can be negative values, although negative bubbles do not display in the chart by default ( NegativeSizeVisible must be true). When negative bubble sizes are displayed, they use their absolute size and are always drawn using the NegativeSizeColor.

Use the Values collection to add, delete, and modify bubbles in the chart.

published property

VertAxis

Represents property VertAxis. (Inherited from RSCharts.TRSChart.)

published property

VerticalAxis

Represents property VerticalAxis. (Inherited from RSCharts.TRSChart.)

published property

Visible

Represents property Visible. (Inherited from RSCharts.TRSChart.)

public property

VisibleCount

Returns the number of TRSChartValue that are visible for the chart (Inherited from RSChartPanel.TRSCustomChart.)

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Name

Description

public method

Assign(TPersistent)

Represents method Assign(TPersistent). (Overrides RSChartPanel.TRSCustomChart.Assign(TPersistent).)

protected method

AxisChanged(TRSChartAxis)

Represents method AxisChanged(TRSChartAxis). (Inherited from RSChartPanel.TRSCustomChart.)

public method

BeginUpdate

Suspends screen repainting of the chart. The BeginUpdate method suspends screen repainting and change events until the EndUpdate method is called. Use BeginUpdate to speed processing and avoid flicker while items are added to or deleted from a collection. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

Changed

Overloaded. Represents method Changed. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

Changed(TRSChartValue)

Overloaded. Represents method Changed(TRSChartValue). (Inherited from RSChartPanel.TRSCustomChart.)

public method

Clone

Creates a "deep" copy of the chart. It constructs a new chart of the correct type and then calls the Assign method to copy its properties to the new copy.

Caution
Note that the new TRSCustomChart has the same owner as the current chart. If there is no owner, you are responsible for freeing the new clone.

protected method

CMHitTest(TCMHitTest)

Represents method CMHitTest(TCMHitTest). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

CMVisibleChanged(TMessage)

Represents method CMVisibleChanged(TMessage). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

CreateBrush

Represents method CreateBrush. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

CreateChartValues

Creates the RSChartPanel.TRSChartValues class for the Values property

Notes to Inheritors
Override this method to create your TRSChartValues descendant

protected method

CreateFont

Represents method CreateFont. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

CreatePen

Represents method CreatePen. (Inherited from RSChartPanel.TRSCustomChart.)

public method

CreatePreviewValues

Creates sample values for illustrating how the chart will look. This function is automatically called at design-time to fill the chart with sample values. It can also be called at run-time to add more values to the chart (i.e., the chart is not cleared first)

Note
Set the Preview property to false to have the design-time sample values show up at run-time

protected method

DoUpdateAxisInfo(TRSChartAxis)

Represents method DoUpdateAxisInfo(TRSChartAxis). (Inherited from RSChartPanel.TRSCustomChart.)

public method

Draw(TCanvas,TCanvasRect)

Overloaded. Paints the chart to the specified Canvas in the specified location. The Draw method first calls the OnDrawing event, which signals that it is about to draw and allows users to stop the drawing before it occurs. Then, it calls the protected InternalDraw method to actually do the drawing. Finally, it calls the OnDraw event to signal the end of drawing of the chart.

Use the Draw method to paint the chart to any canvas and anywhere and with any size on the canvas.

Notes to Callers
The Draw Method uses the HorizontalAxis and VerticalAxis properties to convert the chart values into pixel coordinates. If you want to use a different axis (but not change the above properties), call the overloaded Draw method.

(Inherited from RSChartPanel.TRSCustomChart.)

public method

Draw(TCanvas,TCanvasRect,TRSChartAxis,TRSChartAxis,Boolean,Boolean)

Overloaded. Paints the chart to the specified Canvas in the specified location. The Draw Method uses the supplied TRSChartAxis (instead of the HorizontalAxis and VerticalAxis properties) to convert the chart values into pixel coordinates.

Unlike the regular Draw method, this method draws the axes as well (useful for when the chart is not connected to a panel).

Use the Draw method to paint the chart to any canvas and anywhere and with any size on the canvas.

(Inherited from RSChartPanel.TRSCustomChart.)

public method

DrawAxes(TCanvas,TCanvasRect,TRSChartAxis,TRSChartAxis)

Draws the specified axes to the Canvas (Inherited from RSChartPanel.TRSCustomChart.)

protected method

DrawBubble(TCanvas,TCanvasRect,TRSBubbleChartValue)

Represents method DrawBubble(TCanvas,TCanvasRect,TRSBubbleChartValue).

public method

DrawGlyph(TCanvas,TCanvasRect)

Overloaded. Represents method DrawGlyph(TCanvas,TCanvasRect). (Inherited from RSChartPanel.TRSCustomChart.)

public method

DrawGlyph(TCanvas,TRSChartValue,TCanvasRect)

Represents method DrawGlyph(TCanvas,TRSChartValue,TCanvasRect). (Overrides RSChartPanel.TRSCustomChart.DrawGlyph(TCanvas,TRSChartValue,TCanvasRect).)

protected method

Drawing(TCanvas,TCanvasRect)

Calls the OnDrawing event and returns True if the draw process should continue.

This method is called before the InternalDraw method.

public method

DrawLabel(TCanvas,String,TCanvasPixel,TCanvasPixel,Single)

Overloaded. Draws the text caption centered above the X, Y point without clipping.

Note
The Opacity is ignored in VCL

public method

DrawLabel(TCanvas,String,TCanvasRect,Single)

Overloaded. Draws the text caption centered within the rectangle. The text is clipped

Note
The Opacity is ignored in VCL

public method

DrawLabel(TCanvas,TRSChartValue,TCanvasPixel,TCanvasPixel)

Overloaded. Draws the text caption centered above the X, Y point without clipping.

Note
The Opacity is specified by the RSChartPanel.TRSChartValue.Opacity property

public method

DrawLabel(TCanvas,TRSChartValue,TCanvasRect)

Draws a label for the TRSChartValue on the canvas. The text of the label is controlled by the ValueLabelStyle property.

The label is drawn within the specified rectangle.

Note
The Opacity is specified by the RSChartPanel.TRSChartValue.Opacity property

protected method

Drawn(TCanvas,TCanvasRect)

Calls the OnDraw event.

This method is called after the InternalDraw method.

public method

EndUpdate

Re-enables screen repainting and change events. Use EndUpdate to re-enable screen repainting and change events that were turned off with the BeginUpdate method. (Inherited from RSChartPanel.TRSCustomChart.)

public method

FormatValue(TRSChartValue,TRSLabelTextStyle)

Generates a label for the Value based on the TextStyle (Inherited from RSChartPanel.TRSCustomChart.)

public method

GetAdjOffsetVertical

Returns the vertical offset ( OffsetVertical).

If coUseVerticalOffset is not in Options, this method always returns 0. If coUseVerticalOffset is in Options, the function returns the OffsetVertical value.

public method

GetAxisCaption(TRSChartAxis,Integer,TRSChartValueType)

Returns a label for an axis ( RSChartPanel.TRSChartAxis ) based on the input Value. The Index specifies where to start looking in the chart Values (for optimization purposes) and decrements from there until the closest chart value is found. (Inherited from RSChartPanel.TRSCustomChart.)

public method Class member

GetChartType

Returns the chart type enumerated value for this class. Each chart class overrides this class function to return the RSChartConsts|TRSChartType enumerated value (Overrides RSChartPanel.TRSCustomChart.GetChartType.)

protected method

GetColor

Overloaded. Represents method GetColor. (Inherited from RSChartPanel.TRSCustomChart.)

public method

GetColor(TRSChartValue)

Overloaded. Returns the color of the chart value. The color of the TRSChartValue can change depending on the Options property as well as any other chart states (e.g., the TRSCandleStickChart class overrides this method to turn the color red or green depending on if the Open value is greater than the Closing Value) (Inherited from RSChartPanel.TRSCustomChart.)

public method

GetCumulativeTotal(Integer,Integer,TRSCustomChartClass)

Determine the cumulative value at this index for all charts in the Group. The ValIndex specifies the TRSChartValue.Values dimension to compare.

Used for stacking charts.

public method

GetCumulativeValue(Integer,Integer,TRSCustomChartClass)

Determine the cumulative value at this index for all charts below (spatially) this chart in the same Group. The ValIndex specifies the TRSChartValue.Values dimension to compare.

Used for stacking charts.

protected method

GetGroupDimension

Represents method GetGroupDimension. (Inherited from RSChartPanel.TRSCustomChart.)

public method

GetValueColor

Returns a new chart color based on the ChartColorScheme and ChartColorList. Every time a chart is created, it is assigned a new color from the current ChartColorList. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

InitializeChangeEvents

Initialize the OnChange events of structures. Use this method to assign event handlers for structures (e.g., Pen.OnChange := MyChangeMethod).

Notes to Inheritors
The constructor calls this method after it calls the InitializeChart method, which is where the structures should be actually created and initialized.

protected method

InitializeChart

Creates and initialize structures and values of chart. This method is the safe place to initialize chart values without change events occurring.

Notes to Inheritors
The constructor calls this method. Use this method to actually create and initialize properties. Do not assign event properties in this method (use the InitializeChangeEvents method instead)

protected method

InternalDraw(TCanvas,TCanvasRect)

Paints the chart graphic to the specified canvas at the specified rectangle. The InternalDraw method is called by the Draw method.

Descendant classes of TRSCustomChart override the InternalDraw method to actually paint themselves.

Notes to Inheritors
The default InternalDraw method implementation assigns the Brush, Pen , and Font to the Canvas.

protected method

InternalSelect(TCanvasRect,TRSChartSelectionAction)

Selects or deselects chart Values ( RSChartPanel.TRSChartValue ) based on whether they intersect with the selection rectangle (which is in pixel coordinates).

The base method converts the SelectionRect to chart coordinates (based on HorizontalAxis and VerticalAxis) and then selects values based on the TRSChartValue.Selectable method

public method

IsSelectable(TCanvasRect)

Returns True if any value in the chart intersects with the SelectionRect (Inherited from RSChartPanel.TRSCustomChart.)

protected method

IsValuesStored

Represents method IsValuesStored. (Inherited from RSChartPanel.TRSCustomChart.)

public method

IsVisible

Indicates whether the chart is visible. A chart is visible if its Visible property is True and both axes have been assigned. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

Loaded

Represents method Loaded. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

MouseHover(TCanvasRect)

Represents method MouseHover(TCanvasRect). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

Notification(TComponent,TOperation)

Represents method Notification(TComponent,TOperation). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

Paint

Represents method Paint. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

PanelChanged

Represents method PanelChanged. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

RSVisibleChanged

Represents method RSVisibleChanged. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

SaveCanvasResources(TCanvas,TBrush,TRSPen,TFont)

Represents method SaveCanvasResources(TCanvas,TBrush,TRSPen,TFont). (Inherited from RSChartPanel.TRSCustomChart.)

public method

Select(TCanvasRect,TRSChartSelectionAction)

Selects or deselects chart Values ( RSChartPanel.TRSChartValue ) based on whether they intersect with the selection rectangle (which is in pixel coordinates).

The base method converts the SelectionRect to chart coordinates (based on HorizontalAxis and VerticalAxis) and then selects values based on the TRSChartValue.Selectable method

Notes to Inheritors
Descendant classes override the InternalSelect method

protected method

SelectionColorChanged

Represents method SelectionColorChanged. (Inherited from RSChartPanel.TRSCustomChart.)

protected method

SenderChanged(TObject)

Overloaded. Represents method SenderChanged(TObject). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

SetCanvasResources(TCanvas,TBrush,TRSPen,TFont,Boolean,Boolean)

Overloaded. Represents method SetCanvasResources(TCanvas,TBrush,TRSPen,TFont,Boolean,Boolean). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

SetCanvasResources(TCanvas,TRSChartValue,Boolean,Boolean)

Overloaded. Represents method SetCanvasResources(TCanvas,TRSChartValue,Boolean,Boolean). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

SetColor(TCanvasColor)

Represents method SetColor(TCanvasColor). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

SetOptions(TChartOptions)

Represents method SetOptions(TChartOptions). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

UpdateAxisInfo(TRSChartAxis)

Represents method UpdateAxisInfo(TRSChartAxis). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

UpdateColorScheme

Updates the values to the current color scheme. If PanelColorScheme is True then uses the Panel's color scheme (Inherited from RSChartPanel.TRSCustomChart.)

protected method

ValueSelectionChanged(TRSChartValue)

Represents method ValueSelectionChanged(TRSChartValue). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

ValueVisibleChanged(TRSChartValue)

Represents method ValueVisibleChanged(TRSChartValue). (Inherited from RSChartPanel.TRSCustomChart.)

protected method

WantsCaptions(TRSChartAxis)

Returns true if the chart prefers Captions over Values for its labels on the input Axis. This method provides a hint to the TRSChartAxis when LabelStyle is alsAutomatic. (Inherited from RSChartPanel.TRSCustomChart.)

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	Name	Description
	OnCustomDrawValue	Occurs when a point is being drawn. Use the OnCustomDrawValue event to do custom drawing of the point. Set DoDraw to false to prevent the class from drawing the default point.

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	Name	Description
	FFirstIndex	Represents field FFirstIndex. (Inherited from RSChartPanel.TRSCustomChart.)
	FInPaintTo	Represents field FInPaintTo. (Inherited from RSChartPanel.TRSCustomChart.)
	FLastIndex	Represents field FLastIndex. (Inherited from RSChartPanel.TRSCustomChart.)
	FOptions	Represents field FOptions. (Inherited from RSChartPanel.TRSCustomChart.)
	FSuppressAxesChange	Represents field FSuppressAxesChange. (Inherited from RSChartPanel.TRSCustomChart.)
	FUpdating	Represents field FUpdating. (Inherited from RSChartPanel.TRSCustomChart.)
	FVisibleCount	Represents field FVisibleCount. (Inherited from RSChartPanel.TRSCustomChart.)

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To add a bubble to the chart (at Design-Time):

• Select the TRSBubbleChart component

• Click the ellipsis button (...) for the Values property of the chart. This action displays Delphi's Collection Editor for the TRSBubbleChartValues collection.

• Use the Add button to add bubbles (TRSBubbleChartValue collection item) to the chart.

• Edit the X and Y properties to specify where the location of the bubble

• Edit the Size to specify the size of the bubble as a diameter or area, dependent on SizeOption. Note that this size is not the absolute size of the bubble but is proportional to all the other bubbles in the chart

To add a bubble to the chart (at Run-Time):

Delphi
var Value: TRSBubbleChartValue; // note, this type should be the same that the chart uses (e.g., TRS2DChartValue, TRSArrowChartValue, etc) begin // Add bubble Value := MyChart.Values.Add; Value.Color := clRed; Value.Size := 45.0; end;

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