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I have contour lines with the elevations of them in an attribute called 'CONTOUR' however these do not actually elevate the lines when I bring them into AutoCAD. To do this I want to copy and paste the 'CONTOUR' attribute information and paste it into the 'ELEVATION' attribute as shown in the table. When I Join the excel sheet to the shapefile it doesn't bring in the elevations though and I am not sure why.

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When exporting the contour lines you also can use the OSgeo4W Shell:

  • Navigate to your folder where your shapefile is located

  • use this comand:

    ogr2ogr -f DXF output.dxf input.shp -zfield CONTOUR
    
  • ignore the warnings you will get

  • the zfield argument adds the height information to you dxf file, which is created in the same folder as the input.shp
  • I use the command in the OSgeo4W shell as I am navigating to the folder in the QGIS browser? Not much experience with the shell. – Shub Jun 28 '17 at 12:18
  • @Jhunt9 lets say your countour,shp file sits in C:\myfolder\my_otherfolder. So you would navigate to this folder with cd C:\myfolder\my_otherfolder – LaughU Jun 28 '17 at 12:20
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    My shp file is in my temp folder. So exactly what do I type into my Shell? >cd C:\temp >>ogr2ogr -f DXF output.dxf input.shp -zfield CONTOUR – Shub Jun 28 '17 at 12:26
  • @Jhunt9 yeah if your shapefile is named "input" then it should work else it would be something like cd C:\temp and then ogr2ogr -f DXF output.dxf my_file_name.shp -zfield CONTOUR the CONTOUR is name of the attribute field where the height information is stored# – LaughU Jun 28 '17 at 12:31
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    @Jhunt9 - Do not type python, restart the OSGeo4W shell then type the command in. – Joseph Jun 28 '17 at 12:43
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I got the results I wanted but only through the Query command in AutoCAD. Tutorial can be found here: https://knowledge.autodesk.com/support/autocad-civil-3d/learn-explore/caas/sfdcarticles/sfdcarticles/Importing-an-ESRI-shapefile-with-elevation-values-s.html

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