Geometry Service Buffer() problem?

ChrisO_Leary — Mon, 18 Apr 2011 14:00:30 GMT

Maybe someone can help me out.

I'm creating a buffer from a selected point on my map. The buffer is supposed to be 5 km.

I'm setting up the parameters as follows...

var bufferParams:BufferParameters = new BufferParameters();

bufferParams.geometries = [selectedMapPoint];
bufferParams.distances = [bufferDistance];
bufferParams.unit = GeometryService.UNIT_KILOMETER;
bufferParams.bufferSpatialReference = map.spatialReference;

..and then calling buffer, and drawing the result when complete.

Everything works, and is fine however, when I measure it, it seems to be closer to 6.8 - 6.9 km, not 5 km.

Does this have something to do with the spatial reference? Can anybody point me in the right direction?

My basemap is the ESRI world streetmap, and all of this is built within the Flex Viewer.

Thanks,

Chris

-- Sorry, this is a cross-post as I posted this in the Server/General forum, which I realized is probably not the place.

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Geometry Service Buffer() problem?

Re: Geometry Service Buffer() problem?