topic Adding Z data to contour lines imported from AutoCAD in Data Management Questions https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387753#M22215 <HTML><HEAD></HEAD><BODY><SPAN>I have lines from AutoCAD of bathymetry data, imported into ArcMap.&nbsp; It is spatially referenced, however the contour lines do not have Z-values associated with them.&nbsp; I have a paper copy of the map, and would like to assign the values to the lines manually.&nbsp; However, simply creating a field in the attribute table isn't enough...I would like Arc to recognise those values as the actual 3D elevation.&nbsp; How can I do this?</SPAN></BODY></HTML> Mon, 15 Aug 2011 16:40:51 GMT KathleenGould 2011-08-15T16:40:51Z Adding Z data to contour lines imported from AutoCAD https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387753#M22215 <HTML><HEAD></HEAD><BODY><SPAN>I have lines from AutoCAD of bathymetry data, imported into ArcMap.&nbsp; It is spatially referenced, however the contour lines do not have Z-values associated with them.&nbsp; I have a paper copy of the map, and would like to assign the values to the lines manually.&nbsp; However, simply creating a field in the attribute table isn't enough...I would like Arc to recognise those values as the actual 3D elevation.&nbsp; How can I do this?</SPAN></BODY></HTML> Mon, 15 Aug 2011 16:40:51 GMT https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387753#M22215 KathleenGould 2011-08-15T16:40:51Z Re: Adding Z data to contour lines imported from AutoCAD https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387754#M22216 <HTML><HEAD></HEAD><BODY><SPAN>Once the data is entered as attributes, the 3D analyst 'convert features to 3D' can be used with the Z field as the input.</SPAN></BODY></HTML> Wed, 17 Aug 2011 19:09:12 GMT https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387754#M22216 PatrickKline 2011-08-17T19:09:12Z Re: Adding Z data to contour lines imported from AutoCAD https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387755#M22217 <HTML><HEAD></HEAD><BODY><SPAN>Thanks for your reply, unfortunately 3D analyst for 9.1 doesn't have that tool.&nbsp; Any other suggestions for 9.1 users?</SPAN></BODY></HTML> Thu, 18 Aug 2011 10:46:39 GMT https://community.esri.com/t5/data-management-questions/adding-z-data-to-contour-lines-imported-from/m-p/387755#M22217 KathleenGould 2011-08-18T10:46:39Z