How to Add/Draw Polygons in the .NET MAUI Maps (SfMaps)?

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In the Syncfusion .NET MAUI Maps control, add or draw polygons in the SfMaps through the following steps.

Step 1: Add the SfMaps control to your layout and initialize the MapShapeLayer as shown in the following code sample.

XAML:

<map:SfMaps>
    <map:SfMaps.Layer>
        <map:MapShapeLayer>
        </map:MapShapeLayer>
    </map:SfMaps.Layer>
</map:SfMaps>

Step 2: Set the ShapesSource property for the actual geographical rendering and set the ShapeStroke to DarkGray for separating the countries’ borders as shown in the following code sample.

XAML:

<map:MapShapeLayer ShapesSource="https://cdn.syncfusion.com/maps/map-data/world-map.json"
                   ShapeStroke="DarkGray">
</map:MapShapeLayer>

Note:

The ShapesSource can be set as the GeoJSON file or shapefile from the local file, URL, Stream, or Resource.

Step 3: Add the MapPolygonLayer to the MapShapeLayer’s SubLayers as shown in the following code sample.

XAML:

<map:MapShapeLayer.Sublayers>
    <map:MapPolygonLayer>
    </map:MapPolygonLayer>
</map:MapShapeLayer.Sublayers>

Step 4: Add the polygon Points of type MapLatLng to draw a polygon using the geolocation coordinates.

XAML:

<map:MapPolygonLayer.Polygons>
    <map:MapPolygon>
        <map:MapPolygon.Points>
            <map:MapLatLng Latitude="55.7558"
                           Longitude="37.6173" />
            <map:MapLatLng Latitude="53.7596"
                           Longitude="87.1216" />
            <map:MapLatLng Latitude="61.5240"
                           Longitude="105.3188" />
        </map:MapPolygon.Points>
    </map:MapPolygon>
    <map:MapPolygon>
        <map:MapPolygon.Points>
            <map:MapLatLng Latitude="64.2823"
                           Longitude="-135.0000" />
            <map:MapLatLng Latitude="51.2538"
                           Longitude="-85.3232" />
            <map:MapLatLng Latitude="48.4284"
                           Longitude="-123.3656" />
        </map:MapPolygon.Points>
    </map:MapPolygon>
</map:MapPolygonLayer.Polygons>

Output:

Polygons in Syncfusion .NET MAUI Maps

Conclusion

I hope you enjoyed learning how to add or draw polygons in the .NET MAUI Maps (SfMaps).

Refer to our .NET MAUI Maps feature tour page to learn about its other groundbreaking feature representations. You can explore our .NET MAUI Maps documentation to understand how to present and manipulate data.

For current customers, check out our .NET MAUI components from the License and Downloads page. If you are new to Syncfusion, try our 30-day free trial to check out our .NET MAUI Maps and other .NET MAUI components.

Please let us know in the following comments section if you have any queries or require clarifications. Contact us through our support forums, Direct-Trac, or feedback portal. We are always happy to assist you!

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How to Add/Draw Polygons in the .NET MAUI Maps (SfMaps)?

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