IMapArrow.TailWidth

Syntax

TailWidth: Double;

Description

The TailWidth property determines arrow tail width.

Comments

The tail width is determined as a part of the length of line segment between the anchor points of the connected territories. The allowed values lie in the range [0.0; 1.0].

NOTE. This property is operating if the IMapArrow.Shape property is set to MapArrowShap.Tailed.

Example

Executing the example requires a form with the following components: the Button component named Button1, the MapBox component named MapBox1, and the UiMap component named UiMap1. UiMap1 is a data source for MapBox1. The map must be connected to the UiMap1 component.

The example is a handler of the OnClick event for the Button1 component.

Add links to the ExtCtrls, Forms, and Map system assemblies.

Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
    Maps: IMap;
    Layer: IMapLayer;
    Arrows: IMapLayerArrows;
    Arrow: IMapArrow;
Begin
    Maps := UiMap1.Map;
    Layer := Maps.Layers.FindByName("Regions");
    Arrows := Layer.Arrows;
    Arrows.CreateByIDs(98, 46);
    Arrow := Arrows.Item(0);
    Arrow.Shape:=MapArrowShape.Tailed;
    Arrow.TailWidth:= 0.1;
End Sub Button1OnClick;

After executing the example the arrow with the specified tail width is created: