topic Re: How to get top (or visibles) polygons in specific Layer with ArcObjects in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-top-or-visibles-polygons-in-specific/m-p/399952#M10670 <HTML><HEAD></HEAD><BODY><SPAN>All 3 of those features are visible; it's just that the merged feature is drawn last and hides the two smaller features that are in the same location.&nbsp; There's no real way to tell which feature is "on top" but from my own observation it always appears to be the feature with the higher ObjectId.&nbsp; My guess is that ArcMap renders the features in the order of their ObjectIds but I'm not certain that is always the case.&nbsp; If you need to be able to identify the merged features from the original features within a feature layer then I would suggest adding a field to the layer's attribute table that holds this information.&nbsp; You can then add an attribute query to your spatial filter in order to get the results you are looking for.</SPAN></BODY></HTML> Mon, 18 Feb 2013 13:29:23 GMT NeilClemmons 2013-02-18T13:29:23Z How to get top (or visibles) polygons in specific Layer with ArcObjects https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-top-or-visibles-polygons-in-specific/m-p/399951#M10669 <HTML><HEAD></HEAD><BODY><SPAN>Hi everyone!</SPAN><BR /><BR /><SPAN>I need to create an ArcObjects function to get the top (or visibles) polygons in specific layer. It's possible? I have a Layer with a lot of polygons in the same area but i have to get the top or visibles. I think it's not possible using ISpatialFilter! <span class="lia-unicode-emoji" title=":disappointed_face:">😞</span></SPAN><BR /><BR /><SPAN>Thank´s a lot!</SPAN></BODY></HTML> Sat, 16 Feb 2013 11:05:31 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-top-or-visibles-polygons-in-specific/m-p/399951#M10669 IgorReuter 2013-02-16T11:05:31Z Re: How to get top (or visibles) polygons in specific Layer with ArcObjects https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-top-or-visibles-polygons-in-specific/m-p/399952#M10670 <HTML><HEAD></HEAD><BODY><SPAN>All 3 of those features are visible; it's just that the merged feature is drawn last and hides the two smaller features that are in the same location.&nbsp; There's no real way to tell which feature is "on top" but from my own observation it always appears to be the feature with the higher ObjectId.&nbsp; My guess is that ArcMap renders the features in the order of their ObjectIds but I'm not certain that is always the case.&nbsp; If you need to be able to identify the merged features from the original features within a feature layer then I would suggest adding a field to the layer's attribute table that holds this information.&nbsp; You can then add an attribute query to your spatial filter in order to get the results you are looking for.</SPAN></BODY></HTML> Mon, 18 Feb 2013 13:29:23 GMT https://community.esri.com/t5/arcobjects-sdk-questions/how-to-get-top-or-visibles-polygons-in-specific/m-p/399952#M10670 NeilClemmons 2013-02-18T13:29:23Z