[fdo-users] Spatial Filter Help Needed

surrounded Rob.Sosnowski at itd.idaho.gov
Thu Oct 2 12:53:26 EDT 2008


Hi Gavin,

I've used ArcMap and ArcCatalog (ESRI software) to look at the field names,
they are shown as Shape.  I've also tried shape, I will try SHAPE and let
you know.   Thanks....



Gavin Cramer wrote:
> 
> FDO property names are case-sensitive.  For SHP, they are usually taken
> from field names, which are often uppercase by conventoin.  Perhaps it is
> supposed to be SHAPE?
> 
> Gavin
> 
> 
> -----Original Message-----
> From: fdo-users-bounces at lists.osgeo.org
> [mailto:fdo-users-bounces at lists.osgeo.org] On Behalf Of surrounded
> Sent: Thursday, October 02, 2008 12:38 PM
> To: fdo-users at lists.osgeo.org
> Subject: [fdo-users] Spatial Filter Help Needed
> 
> 
> I'm trying to intersect a circle (created from input coordinates) with a
> shapefile.  I've created the circle geometry and am now trying to set up
> the
> filter.  In the code below, the statement
> 
> while(reader.ReadNext())
> 
> throws the follwing exception:
> "The property 'Shape' is not in the readers selected property set"
> 
> SUGGESTIONS....THANKS
> 
> **********************************************
> 
> OSGeo.FDO.Expression.GeometryValue pGVal = new GeometryValue(pByteCircle);
> OSGeo.FDO.Expression.ComputedIdentifier pPropName = new
> ComputedIdentifier("Shape", new Identifier("Geometry"));
> 
> IdentifierCollection pIDColl = sel.PropertyNames;
> pIDColl.Add(pPropName);
> 
> OSGeo.FDO.Filter.Filter pPtLineFilter = new
> OSGeo.FDO.Filter.SpatialCondition(pPropName,
> OSGeo.FDO.Filter.SpatialOperations.SpatialOperations_Intersect, pGVal); }
> 
> OSGeo.FDO.Commands.Feature.IFeatureReader reader = sel.Execute();
> while (reader.ReadNext())
> {
>      ......some code....
> }
> 
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> 
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