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TdxChartAxisValueLabelsAppearance Class

Stores axis value appearance settings.

Declaration

TdxChartAxisValueLabelsAppearance = class(
    TdxChartCustomLabelsAppearance
)

Remarks

Value labels mark values on an axis. Use value label appearance settings to change font appearance, display label borders, and fill label areas.

VCL Chart Control: Value Labels on X and Y Axes

Main API Members

The list below outlines key members of the TdxChartAxisValueLabelsAppearance class that allow you to customize value label appearance.

Assign
Copies value label appearance settings between axes.
BeginUpdate | CancelUpdate | EndUpdate
Allow you to avoid excessive redraw operations during batch label appearance changes.
Border
Specifies if value labels display borders.
BorderColor | BorderThickness
Change label border appearance.
FontOptions | TextColor
Allow you to customize label font settings.
FillOptions
Provides access to label background fill settings.

Code Example

The following code example applies identical value label appearance settings to the main X and Y axes in a diagram:

var
  ADiagram: TdxChartXYDiagram;
begin
  if dxChartControl1.DiagramCount = 0 then Exit;
  ADiagram := dxChartControl1.Diagrams[0] as TdxChartXYDiagram;
  ADiagram.BeginUpdate;
  try
    ADiagram.Axes.AxisX.ValueLabels.Angle := 45;
    ADiagram.Axes.AxisX.ValueLabels.Appearance.FontOptions.Style := [fsBold, fsItalic];
    ADiagram.Axes.AxisX.ValueLabels.Appearance.TextColor := TdxAlphaColors.Gray;
    ADiagram.Axes.AxisY.Assign(ADiagram.Axes.AxisX); // Copies settings between axes
    ADiagram.Axes.AxisY.Interlaced := False; // Restores the previous Interlaced property value
  finally
    ADiagram.EndUpdate;
  end;
end;

Angle

VCL Chart Control: An Axis Value Label Customization Example

Direct TdxChartAxisValueLabelsAppearance Class References

The TdxChartAxisValueLabels.Appearance property references a TdxChartAxisValueLabelsAppearance object.

See Also