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RadMap displaying ShapeFile incorrectly

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Jeremy
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Jeremy asked on 11 Oct 2016, 10:39 PM

I'm trying to get a shapefile into the radmap (intending to be similar to the hotel floor plan example), however my shapefile does not get displayed properly. It's using WGS84, and is displayed correctly with every shapefile viewer i can find

Attached expected and resulting outputs

<Grid>
            <telerik:RadMap x:Name="radMap"
                        UseDefaultLayout="False"
                        UseSpringAnimations="False"
                        Background="Transparent"
                        MouseDragMode="None"
                        MouseDoubleClickMode="None">
                <telerik:RadMap.Provider>
                    <telerik:EmptyProvider/>
                </telerik:RadMap.Provider>


                <telerik:VisualizationLayer x:Name="VisualizationLayer">

                    <telerik:VisualizationLayer.Reader>
                        <telerik:AsyncShapeFileReader PreviewReadShapeDataCompleted="OnPreviewReadShapeDataCompleted">
                            <telerik:AsyncReaderSource  DataSource="C:\temp\TestImageBlend\Test.dbf" Source="C:\temp\TestImageBlend\Test.shp"  />
                        </telerik:AsyncShapeFileReader>
                    </telerik:VisualizationLayer.Reader>
                </telerik:VisualizationLayer>
            </telerik:RadMap>
        </Grid>

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Petar Mladenov
Telerik team
answered on 12 Oct 2016, 12:37 PM
Hi Jeremy,

This might be an issue related to the format in which the shape file is saved. The projections which is supported by the RadMap are:

- The Mercator projection EPSG:4326 (default) that refers to WGS84 as (latitude, longitude) pair coordinates in degrees
- The OSGB-1936 projection which also known as EPSG:27700
- The EPSG:900913 projection which also known as EPSG:3857 and Pseudo-Mercator projection that refers to WGS84 as (latitude, longitude) pair coordinates in meters
 
However, since you use EmptyProvider (check the notes in the article), you can set its Projection property whose value by default is MercatorProjection. If your shp file is produced among with prj file you can check it for the type of projection used when building the shape file.


Regards,
Petar Mladenov
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Jeremy
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answered on 12 Oct 2016, 01:08 PM

Thanks Petar,

I was unsuccessful with the WGS84 projection but I re-saved my shape files using the OSGB-1936 projection with the EmptyProvider.Projection set accordingly and my map is now being correctly displayed. 

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Petar Mladenov
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