Lundgren Posted July 20, 2015 Share Posted July 20, 2015 Hi! I need to determine som earthwork volumes for a project, but I just started to use Civil 3D. First of all, I got som contour 2D polylines with elevations attached. I have tried to make a surface of the existing ground, by trimming down these contourlines according to a boundary line. Here is what my surface look like, I think it looks awful. I have tried to follow some of these tutorial guides on youtube, but can someone please explain me what I have done wrong? Quote Link to comment Share on other sites More sharing options...
SLW210 Posted July 20, 2015 Share Posted July 20, 2015 I moved your thread to the Civil 3D & LDD Forum, please post Civil 3D related questions there. Quote Link to comment Share on other sites More sharing options...
tombu Posted July 20, 2015 Share Posted July 20, 2015 Keep in mind contours are great for displaying a surface in 2D, but not the most accurate way to define a surface. How was the project created? Quote Link to comment Share on other sites More sharing options...
sandiegophil Posted July 21, 2015 Share Posted July 21, 2015 it looks like your contours have a thickness as well. If you change the thickness of all the polylines to "zero" do they still reside at the correct elevation? Quote Link to comment Share on other sites More sharing options...
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