TChartLegend
Hierarchy Properties Methods
Unit
Chart
Description
TChartLegend is a big component with many available formatting and dimensioning properties.
A legend is a rectangle filled with the Chart Series Titles or a Series Values formatted representation.
You switch this operation mode by setting the TCustomChartLegend.LegendStyle property.
The TCustomChartLegend.Alignment property defines the Legend position.
Legend can be placed at Top, Left, Right and Bottom side of Chart, or custom positioned using the TTeeCustomShapePosition.CustomPosition property.
Left and Right Legend alignments define a vertical Legend with one single column of items.
Top and Bottom Legend alignments define an horizontal Legend with one or more rows of items.
The TCustomChart.Legend itself automatically reduces the number of displayed legend items based on the available charting space.
The TCustomChartLegend.ResizeChart property controls if Legend dimensions should be used to reduce Chart points space.
The OnGetLegendRect event provides a mechanism to supply the desired Rectangle Legend dimensions and placement.
The OnGetLegendPos event can be used to specify fixed Legend items X Y coordinates.
The TCustomChartLegend.HorizMargin and TCustomChartLegend.VertMargin properties control distance between Legend and Left and Right Chart margins.
The TCustomChartLegend.TopPos property can be used in Left or Right Legend alignments to control vertical distance between Legend and Top Chart Margin.
These techniques allow almost complete Legend control.
