[mapguide-users] Coordinate system transformation

[Kenneth Skovhede, GEOGRAF A/S]

For some reason, your FeatureSource does not have a spatial context.
I don't know how to fix this with Oracle, but for other providers, it is 
not unusual that they lack spatial context.

Regards, Kenneth Skovhede, GEOGRAF A/S



mighty_duck skrev:
> Hello,
>
> Im having next problems during performing coordinate system transformation:
>
> Here is the code
>
>              MgSpatialContextReader context;
>              context =
> featureService1.GetSpatialContexts(layerFeatureResources1, true);
>
>              context.ReadNext();
>              string coordSys = context.GetCoordinateSystemWkt();
>
>              MgCoordinateSystemFactory coordSysFac = new
> MgCoordinateSystemFactory();
>
>              MgCoordinateSystem cs;
>              cs = coordSysFac.Create(coordSys);
>
>              string mapCoordSys = map1.GetMapSRS();
>              MgCoordinateSystem csNew;
>              csNew = coordSysFac.Create(mapCoordSys);
>
>              MgCoordinateSystemTransform coordSysTransf;
>              coordSysTransf = coordSysFac.GetTransform(cs, csNew);
>
>
>              Problem starts at context object (second line) where I recieve
> exception "index is out of the range".
>
> Does anyone know what can be a problem? Im using Oracle as data source!!!
>
> thanks in advance
>
> regards
>