topic Getting raster not-null into a polygon geometry in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/getting-raster-not-null-into-a-polygon-geometry/m-p/44844#M1168 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><SPAN>I am trying to extract the portion of a raster image that is not null into a polygon geometry in ArcObjects.&nbsp; The reason is I need the outline of the image without all the null values around the edges.&nbsp; </SPAN><BR /><SPAN>I have something that works so far but it is very slow.</SPAN><BR /><SPAN>I use the ILogicalOp.IsNull, save the output to disk, then use the IRasterConverterHelper.ToShapfile and select the gridcode=0 polygon.</SPAN><BR /><SPAN>It works ok it is just very slow and creates intermediate data on disk that I don't care for and that I need to clean up.</SPAN><BR /><BR /><SPAN>does anyone know if you can extract the polygon directly from the raster?</SPAN><BR /><SPAN>Thamks.</SPAN></BODY></HTML> Mon, 11 Apr 2011 18:43:48 GMT AlexanderGray 2011-04-11T18:43:48Z Getting raster not-null into a polygon geometry https://community.esri.com/t5/arcobjects-sdk-questions/getting-raster-not-null-into-a-polygon-geometry/m-p/44844#M1168 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><SPAN>I am trying to extract the portion of a raster image that is not null into a polygon geometry in ArcObjects.&nbsp; The reason is I need the outline of the image without all the null values around the edges.&nbsp; </SPAN><BR /><SPAN>I have something that works so far but it is very slow.</SPAN><BR /><SPAN>I use the ILogicalOp.IsNull, save the output to disk, then use the IRasterConverterHelper.ToShapfile and select the gridcode=0 polygon.</SPAN><BR /><SPAN>It works ok it is just very slow and creates intermediate data on disk that I don't care for and that I need to clean up.</SPAN><BR /><BR /><SPAN>does anyone know if you can extract the polygon directly from the raster?</SPAN><BR /><SPAN>Thamks.</SPAN></BODY></HTML> Mon, 11 Apr 2011 18:43:48 GMT https://community.esri.com/t5/arcobjects-sdk-questions/getting-raster-not-null-into-a-polygon-geometry/m-p/44844#M1168 AlexanderGray 2011-04-11T18:43:48Z