IMapView.ScrollIntoView

Syntax

ScrollIntoView(Shape: IMapTopobaseShape);

Parameters

Shape. Map layer area.

Description

The ScrollIntoView method places the specified area of the map layer into the view area.

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 Drawing, ExtCtrls, Forms, and Map system assemblies.

Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
Var
    Map: IMap;
    MapView: IMapView;
    RectF: IGxRectF;
    Layer: IMapLayer;
    Shape: IMapTopobaseShape;
Begin
    Map := UiMap1.Map;
    MapView := Map.View;
    Layer := Map.Layers.FindByName("Regions");
    // Determine map visibility scope
    RectF := New GxRectF.Create(0.5, 0.5, 1.5, 1.5);
    MapView.ViewRect := RectF;
    // Place the first area of the Regions layer to visibility scope
    Shape := Layer.Shapes.Item(0);  
    MapView.ScrollIntoView(Shape);
End Sub Button1OnClick;

After executing the example the map visibility scope is determined, the first area of the Regions layer is placed to this scope.

See also:

IMapView