IMapDynamicDataAdapter.PartCount

Syntax

PartCount(Attribute: Variant): Integer;

Parameters

Attribute - parameter that determines the data, for which the number of areas should be returned.

Description

The PartCount property returns the number of separate data areas. Each data area corresponds to a single region of the map.

Example

Executing the example requires a form with a button named Button1, the UiMap component named UiMap1 and the MapBox component. The map must be connected to the UiMap1 component.

Var Count: Integer;

Class TerritoryInfoAdapter: Object, IMapDynamicDataAdapter

        Function Get_PartCount(Attribute: Variant; TimePoint: Integer): Integer;
        Begin
            Return Count;
        End Function Get_PartCount;

        Function Get_TimePointName(TimePoint: Integer): String;
        Begin
            Return "TimePoint " + TimePoint.ToString;
        End Function Get_TimePointName;

        Function Get_TimePointsCount: Integer;
        Begin
            Return 4;
        End Function Get_TimePointsCount;

        Function Get_Data(Attribute: Variant; PartvIndex: Integer; TimePoint: Integer): Variant;
        Var t: Integer;
            i: Integer;
        Begin
            t := 1;
            For i := 0 To TimePoint Do
                t := t + 10;
            End For;
            Return Math.Rand * 10 * t;
        End Function Get_Data;

        Function Get_CustomFormat: String;
        Begin
            Return "#0,000";
        End Function Get_CustomFormat;

End Class TerritoryInfoAdapter;

Class TestForm: Form
    Button1: Button;
    UiMap1: UiMap;
    MapBox1: MapBox;

    Sub Button1OnClick(Sender: Object; Args: IMouseEventArgs);
    Var
        Da: TerritoryInfoAdapter;
        MapDa: IMapDynamicDataAdapter;
        M: IMap;
        mLayer: IMapLayer;
        mShapes: IMapTopobaseShapes;
        mShape: IMapTopobaseShape;
        i: integer;
        pc: Integer;
    Begin
        Da := New TerritoryInfoAdapter.Create;
        MapDa := da As IMapDynamicDataAdapter;
        M := UiMap1.Map;
        mLayer := M.View.TerritoryInfo.Layer;
        mShapes := mLayer.Shapes;
        For i := 0 To mShapes.Count - 1 Do
            mShape := mShapes.Item(i);
            pc := MapDa.PartCount(mShape) - 1;
            Debug.WriteLine(MapDa.Data(mShape, pc));
        End For;
        mLayer.TerritoryInfoAdapter := MapDa;
    End Sub Button1OnClick;

End Class TestForm;

After executing the example the data source for the territory info is determined. The elements of the last data area in the data adapter are displayed in the console window.