AddBarVisual: IMapBarVisual;
The AddBarVisual method adds a bar indicator to the collection.
Executing the example requires a form, a button named Button1 on the form, the UiMap component named UiMap1 that is a data source for the MapBox component. The map must be connected to the UiMap1 component. The VisualDataAdapter class, that creates a dynamic data source, must also be implemented. The class example is contained in the IMapVisual.DataAdapter property description.
Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
Map: IMap;
Layer: IMapLayer;
BarVisual: IMapBarVisual;
Fill: IMapVisualFillProperty;
Color: IMapVisualColorProperty;
Collection: IMapColorCollection;
Begin
Map := UiMap1.Map;
Layer := Map.Layers.FindByName("Regions");
BarVisual := Layer.Visuals.AddBarVisual;
BarVisual.DataAdapter := New VisualDataAdapter.Create As IMapDynamicDataAdapter;
Fill := BarVisual.Fill;
Fill.Dependent := False;
Fill.Value := GxHatchStyle.DarkUpwardDiagonal;
Color := BarVisual.FillColor;
Collection := Color.Values;
Collection.Item(0) := GxColor.FromName("Red");
BarVisual.Width.Value := 1;
End Sub Button1OnClick;
After executing the example the map indicator, which is hatched in red, is added to the Regions layer:
See also: