topic Bug in Add GP Tool, counter clockwise polygon invalid feature in ArcGIS API for Silverlight Questions https://community.esri.com/t5/arcgis-api-for-silverlight-questions/bug-in-add-gp-tool-counter-clockwise-polygon/m-p/12623#M298 <HTML><HEAD></HEAD><BODY><SPAN>I have found a bug with the Viewer Add GP Tool, thought I'd share my pain.&nbsp; I have a geoprocessing service that only requires an input polygon digitized by the user.&nbsp; In my model, the featureset is converted to a feature class with Copyfeatures tool, then the geometry is used to extract some raster data.&nbsp; The tool works fine when the polygon is digitized in a clockwise direction, but an invalid feature with negative area is produced, if digitized in a counter-clockwise direction in the Viewer.&nbsp; The check geometry tool confirms that the counter-clockwise feature has invalid ring ordering, so I'm using the Repair Geometry tool in my model as a work around.</SPAN></BODY></HTML> Fri, 24 Aug 2012 14:41:15 GMT CMICNRE 2012-08-24T14:41:15Z Bug in Add GP Tool, counter clockwise polygon invalid feature https://community.esri.com/t5/arcgis-api-for-silverlight-questions/bug-in-add-gp-tool-counter-clockwise-polygon/m-p/12623#M298 <HTML><HEAD></HEAD><BODY><SPAN>I have found a bug with the Viewer Add GP Tool, thought I'd share my pain.&nbsp; I have a geoprocessing service that only requires an input polygon digitized by the user.&nbsp; In my model, the featureset is converted to a feature class with Copyfeatures tool, then the geometry is used to extract some raster data.&nbsp; The tool works fine when the polygon is digitized in a clockwise direction, but an invalid feature with negative area is produced, if digitized in a counter-clockwise direction in the Viewer.&nbsp; The check geometry tool confirms that the counter-clockwise feature has invalid ring ordering, so I'm using the Repair Geometry tool in my model as a work around.</SPAN></BODY></HTML> Fri, 24 Aug 2012 14:41:15 GMT https://community.esri.com/t5/arcgis-api-for-silverlight-questions/bug-in-add-gp-tool-counter-clockwise-polygon/m-p/12623#M298 CMICNRE 2012-08-24T14:41:15Z Re: Bug in Add GP Tool, counter clockwise polygon invalid feature https://community.esri.com/t5/arcgis-api-for-silverlight-questions/bug-in-add-gp-tool-counter-clockwise-polygon/m-p/12624#M299 <HTML><HEAD></HEAD><BODY><SPAN>You can also use the Simplify geometry service.</SPAN><BR /><SPAN>There is a sample here : </SPAN><A href="http://resources.arcgis.com/en/help/silverlight-api/samples/start.htm#Simplify">http://resources.arcgis.com/en/help/silverlight-api/samples/start.htm#Simplify</A></BODY></HTML> Mon, 27 Aug 2012 07:24:55 GMT https://community.esri.com/t5/arcgis-api-for-silverlight-questions/bug-in-add-gp-tool-counter-clockwise-polygon/m-p/12624#M299 DominiqueBroux 2012-08-27T07:24:55Z