Creates a new FMX.RS.Charts.TRSArrowChartValue instance and adds it to the Items array. The new instance is initialized with the StartX, StartY (start point with default end point), Caption, and Color parameters. Call Add to create an arrow in the collection. The new value is placed at the end of the Items array, or, if the collection is Sorted, placed at the sorted point in the collection.
Add returns the new arrow value.
Namespace: FMX.RS.Charts
Delphi
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public
function Add( X, Y: TRSChartValueType; Caption: String = ''; Color: TCanvasColor = clxDefaultColor ): TRSArrowChartValue; overload;
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Parameters
X
Type: TRSChartValueType
Y
Type: TRSChartValueType
Caption
Type: String
Color
Type: TCanvasColor
Return Value
Type: TRSArrowChartValue
The following example creates values in the collection:
Delphi
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var
Value: TRSArrowChartValue; // note, this type should be the same that the chart uses (e.g., TRS2DChartValue, TRSArrowChartValue, etc)
begin
Value := MyChart.Values.Add;
Value.Caption := 'One';
Value.Color := clRed;
Value.StartX := 10.0;
Value.StartY := 20.0;
Value.EndX := 50.0;
Value.EndY := -20.0;
// this code adds the same arrow but much more quickly
Value := MyChart.Values.Add( 10.0, 20.0, 50.0, -20.0), 'One', clRed );
end;
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Reference
| • | TRSArrowChartValues.Add(TRSChartValueType,string,TCanvasColor) |
| • | TRSArrowChartValues.Add(TRSChartValueType,TRSChartValueType,TRSChartValueType,TRSChartValueType,string,TCanvasColor) |
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