/*
* internal SdeConnection AllocConnection()
* {
* if (_sConnection == null) return null;
* return _current = _sConnection.AllocConnection();
* }
*
* internal void FreeConnection()
* {
* if (_sConnection == null) return;
* _current = null;
* _sConnection.FreeConnection();
* }
*/
internal SE_COORDREF GetSeCoordRef(ArcSdeConnection connection, string table, string spatialColumnName, ref SE_ENVELOPE envelope)
{
_errMsg = "";
if (connection == null || connection.SeConnection.handle == IntPtr.Zero)
{
_errMsg = "GetSeCoordRef:\n No Connection allocated!";
return(new SE_COORDREF());
}
SE_COORDREF coordRef = new SE_COORDREF();
SE_LAYERINFO layerInfo = new SE_LAYERINFO();
Int32 _err_no = 0;
try
{
_err_no = Wrapper10.SE_coordref_create(ref coordRef);
if (_err_no != 0)
{
return(new SE_COORDREF());
}
_err_no = Wrapper10.SE_layerinfo_create(coordRef, ref layerInfo);
if (_err_no != 0)
{
return(new SE_COORDREF());
}
_err_no = Wrapper10.SE_layer_get_info(connection.SeConnection, table, spatialColumnName, layerInfo);
if (_err_no != 0)
{
return(new SE_COORDREF());
}
_err_no = Wrapper10.SE_layerinfo_get_coordref(layerInfo, coordRef);
if (_err_no != 0)
{
return(new SE_COORDREF());
}
_err_no = Wrapper10.SE_coordref_get_xy_envelope(coordRef, ref envelope);
if (_err_no != 0)
{
return(new SE_COORDREF());
}
return(coordRef);
}
catch (Exception ex)
{
_errMsg = "GetSeCoordRef:\n " + ex.Message + "\n" + ex.StackTrace;
return(new SE_COORDREF());
}
finally
{
if (layerInfo.handle != IntPtr.Zero)
{
Wrapper10.SE_layerinfo_free(layerInfo);
}
if (_err_no != 0)
{
if (coordRef.handle != IntPtr.Zero)
{
Wrapper10.SE_coordref_free(coordRef);
}
_errMsg = Wrapper10.GetErrorMsg(new SE_CONNECTION(), _err_no);
}
}
}
internal ISpatialReference GetLayerSpatialReference(SE_CONNECTION connection, string table, string spatialColumnName)
{
_errMsg = "";
if (connection.handle == IntPtr.Zero)
{
_errMsg = "GetLayerSpatialReference:\n No Connection allocated!";
return(null);
}
SE_COORDREF coordRef = new SE_COORDREF();
SE_LAYERINFO layerInfo = new SE_LAYERINFO();
Int32 _err_no = 0;
try
{
_err_no = Wrapper10.SE_coordref_create(ref coordRef);
if (_err_no != 0)
{
return(null);
}
_err_no = Wrapper10.SE_layerinfo_create(coordRef, ref layerInfo);
if (_err_no != 0)
{
return(null);
}
_err_no = Wrapper10.SE_layer_get_info(connection, table, spatialColumnName, layerInfo);
if (_err_no != 0)
{
return(null);
}
_err_no = Wrapper10.SE_layerinfo_get_coordref(layerInfo, coordRef);
if (_err_no != 0)
{
return(null);
}
System.Int32 srid = 0;
_err_no = Wrapper10.SE_coordref_get_srid(coordRef, ref srid);
if (_err_no != 0)
{
return(null);
}
byte[] description = new byte[1024 * 4];
_err_no = Wrapper10.SE_coordref_get_description(coordRef, description);
if (_err_no != 0)
{
return(null);
}
string wkt = Functions.GetASCIIString(description);
ISpatialReference sRef = gView.Framework.Geometry.SpatialReference.FromWKT(wkt);
return(sRef);
}
catch (Exception ex)
{
_errMsg = "GetLayerSpatialReference:\n " + ex.Message + "\n" + ex.StackTrace;
return(null);
}
finally
{
if (layerInfo.handle != IntPtr.Zero)
{
Wrapper10.SE_layerinfo_free(layerInfo);
}
if (coordRef.handle != IntPtr.Zero)
{
Wrapper10.SE_coordref_free(coordRef);
}
if (_err_no != 0)
{
_errMsg = Wrapper10.GetErrorMsg(new SE_CONNECTION(), _err_no);
}
}
}
