ISpeedometerArrowView.Length

Syntax

Length: Double;

Description

The Length property determines arrow length.

Comments

The value of arrow length is set in the range [0,1]. The arrow length is 1 by default.

Example

Executing the example requires a form with the Button1 button and the SpeedometerBox component named SpeedometerBox1.

Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);

Var

s: ISpeedometer;

v: ISpeedometerView;

ScaleView: ISpeedometerScaleView;

ArrowView: ISpeedometerArrowView;

Begin

s := SpeedometerBox1.Speedometer;

v := s.View;

s.BeginUpdate;

ScaleView := v.ScaleViews.Item(0);

ArrowView := ScaleView.ArrowViews.Item(0);

ArrowView.AxisOffset := 0.1;

ArrowView.Background.Color := GxColor.FromName("Green");

ArrowView.Length := 0.8;

ArrowView.Shape := SpeedometerArrowShapes.Triangle;

ArrowView.Width := 0.15;

s.EndUpdate;

End Sub Button1OnClick;

After executing the example, on clicking the button, the formatting of scale arrow of the speedometer displayed in the SpeedometerBox1 component is changed. The offset from the centre, background color, length and width are set for the arrow. The shape of the arrow is also changed.