MapPolygon Class

The class used to draw a polygon on a map.

Assembly: DevExpress.Xpf.Map.v23.2.dll

Declaration

C#
VB.NET

public class MapPolygon :
    MapShape,
    ISupportCoordPoints,
    IPolygonCore,
    IPointContainerCore,
    IEditableItem,
    ISimplifiableItem

Public Class MapPolygon
    Inherits MapShape
    Implements ISupportCoordPoints,
               IPolygonCore,
               IPointContainerCore,
               IEditableItem,
               ISimplifiableItem

The following members return MapPolygon objects:

Remarks

The following image shows an example of a map polygon shape.

MapPolygon

Note that, a map shape should fulfill the following condition to cross the 180th meridian: one or several points’ longitudes should exceed the 180 (-180) limit:

Xaml

<dxm:MapItemStorage>
    <dxm:MapItemStorage.Items>
        <dxm:MapPolygon>
            <dxm:MapPolygon.Points>
                <dxm:GeoPoint Latitude="-10" Longitude="-170"/>
                <dxm:GeoPoint Latitude="-10" Longitude="170"/>
                <dxm:GeoPoint Latitude="10" Longitude="170"/>
                <dxm:GeoPoint Latitude="10" Longitude="-170"/>
            </dxm:MapPolygon.Points>
        </dxm:MapPolygon>
        <dxm:MapPolygon Fill="Orange">
            <dxm:MapPolygon.Points>
                <dxm:GeoPoint Latitude="30" Longitude="170"/>
                <dxm:GeoPoint Latitude="30" Longitude="190"/>
                <dxm:GeoPoint Latitude="40" Longitude="190"/>
                <dxm:GeoPoint Latitude="40" Longitude="170"/>
            </dxm:MapPolygon.Points>
        </dxm:MapPolygon>
    </dxm:MapItemStorage.Items>
</dxm:MapItemStorage>

The code above produces the following image:

Two polygons one of which crosses the 180th meridian

Example

View Example

MainWindow.xaml

<dxm:MapPolygon>
    <dxm:MapPolygon.Points>
        <dxm:GeoPoint>10, 10</dxm:GeoPoint>
        <dxm:GeoPoint>20, 10</dxm:GeoPoint>
        <dxm:GeoPoint>10, 20</dxm:GeoPoint>
    </dxm:MapPolygon.Points>
</dxm:MapPolygon>