https://community.esri.com/t5/arcobjects-sdk-questions/when-topologicaloperator-difference-exception-from/m-p/1084481#M20359 <P>If SelectionCount &lt;&gt; 0 Then<BR />pTopologicalOperator = CType(WALL_Feature.Shape, ITopologicalOperator)<BR />pTopologicalOperator.Simplify()<BR />While OtherFea IsNot Nothing<BR />Dim LayerName As String = OtherFea.Value(OtherFea.Fields.FindField("Layer")).ToString.ToUpper<BR />If LayerName &lt;&gt; "WALL" Then<BR />Dim oPolygon As IPolygon<BR />oPolygon = OtherFea.ShapeCopy<BR />oPolygon.SimplifyPreserveFromTo()</P><P><BR />pTopologicalOperator = pTopologicalOperator.Difference(oPolygon) <FONT color="#FF0000"><STRONG>(here&nbsp;Exception from HRESULT: 0x80040215 )</STRONG></FONT><BR /><BR />End if</P><P>&nbsp;</P><P>&nbsp;</P> Fri, 30 Jul 2021 16:30:09 GMT syedabdulrafee 2021-07-30T16:30:09Z https://community.esri.com/t5/arcobjects-sdk-questions/when-topologicaloperator-difference-exception-from/m-p/1084481#M20359 <P>If SelectionCount &lt;&gt; 0 Then<BR />pTopologicalOperator = CType(WALL_Feature.Shape, ITopologicalOperator)<BR />pTopologicalOperator.Simplify()<BR />While OtherFea IsNot Nothing<BR />Dim LayerName As String = OtherFea.Value(OtherFea.Fields.FindField("Layer")).ToString.ToUpper<BR />If LayerName &lt;&gt; "WALL" Then<BR />Dim oPolygon As IPolygon<BR />oPolygon = OtherFea.ShapeCopy<BR />oPolygon.SimplifyPreserveFromTo()</P><P><BR />pTopologicalOperator = pTopologicalOperator.Difference(oPolygon) <FONT color="#FF0000"><STRONG>(here&nbsp;Exception from HRESULT: 0x80040215 )</STRONG></FONT><BR /><BR />End if</P><P>&nbsp;</P><P>&nbsp;</P> Fri, 30 Jul 2021 16:30:09 GMT https://community.esri.com/t5/arcobjects-sdk-questions/when-topologicaloperator-difference-exception-from/m-p/1084481#M20359 syedabdulrafee 2021-07-30T16:30:09Z https://community.esri.com/t5/arcobjects-sdk-questions/when-topologicaloperator-difference-exception-from/m-p/1089221#M20365 <P>Hi,</P><P>Your geometries have different spatial references.</P><TABLE><TBODY><TR><TD><STRONG>E_GEOMETRY_INCONSISTANT_SPATIAL_REFERENCE</STRONG></TD><TD>533</TD><TD>(0x80040215) Input geometries do not have same spatial reference.</TD></TR></TBODY></TABLE><P>&nbsp;</P><P><A href="https://developers.arcgis.com/enterprise-sdk/api-reference/net/esriGeometry/esriGeometryError/" target="_self">https://developers.arcgis.com/enterprise-sdk/api-reference/net/esriGeometry/esriGeometryError/</A>&nbsp;</P> Mon, 16 Aug 2021 08:33:22 GMT https://community.esri.com/t5/arcobjects-sdk-questions/when-topologicaloperator-difference-exception-from/m-p/1089221#M20365 GKmieliauskas 2021-08-16T08:33:22Z