topic Re: Problem: adding z values to contour lines extracted from a DTM in ArcGIS Pro Questions https://community.esri.com/t5/arcgis-pro-questions/problem-adding-z-values-to-contour-lines-extracted/m-p/568496#M25009 <HTML><HEAD></HEAD><BODY><P>This is the help topic <A href="http://desktop.arcgis.com/en/arcmap/latest/tools/3d-analyst-toolbox/add-z-information.htm" title="http://desktop.arcgis.com/en/arcmap/latest/tools/3d-analyst-toolbox/add-z-information.htm">Add Z Information—Help | ArcGIS for Desktop</A> </P><P>the source file must contain z information and the destination file must be able to receive them</P></BODY></HTML> Thu, 24 Mar 2016 09:59:44 GMT DanPatterson_Retired 2016-03-24T09:59:44Z Problem: adding z values to contour lines extracted from a DTM https://community.esri.com/t5/arcgis-pro-questions/problem-adding-z-values-to-contour-lines-extracted/m-p/568495#M25008 <HTML><HEAD></HEAD><BODY><P>Good morning everybody! Question is simple: I have a contour lines dwg extracted from a DTM. I would to import this dwg file in revit so i can obtain a toposurface in where i put my project. The problem is: when i want to add z information with 3D analyst it tells me "the input feature class must have z values". How can obtain z values? I did a similar operation with points but I don't rememeber how (I did it with my teacher). Is there anybody who can help me please? Thank you very much</P><P>Lorenzo</P></BODY></HTML> Thu, 24 Mar 2016 09:53:50 GMT https://community.esri.com/t5/arcgis-pro-questions/problem-adding-z-values-to-contour-lines-extracted/m-p/568495#M25008 LorenzoMulas 2016-03-24T09:53:50Z Re: Problem: adding z values to contour lines extracted from a DTM https://community.esri.com/t5/arcgis-pro-questions/problem-adding-z-values-to-contour-lines-extracted/m-p/568496#M25009 <HTML><HEAD></HEAD><BODY><P>This is the help topic <A href="http://desktop.arcgis.com/en/arcmap/latest/tools/3d-analyst-toolbox/add-z-information.htm" title="http://desktop.arcgis.com/en/arcmap/latest/tools/3d-analyst-toolbox/add-z-information.htm">Add Z Information—Help | ArcGIS for Desktop</A> </P><P>the source file must contain z information and the destination file must be able to receive them</P></BODY></HTML> Thu, 24 Mar 2016 09:59:44 GMT https://community.esri.com/t5/arcgis-pro-questions/problem-adding-z-values-to-contour-lines-extracted/m-p/568496#M25009 DanPatterson_Retired 2016-03-24T09:59:44Z