I know that I am stretching the limits of Civil 3D 2011 with this request but I wanted to check to see if it could be done. I have several surfaces, each defining a bedding plane in rock. Additionally, I have a surface defining the project excavation. I need to find some key points (x,y,z) where the existing surfaces intersect with the excavation. I have tried to paste one surface into another but I am not able to snap to any points on the surfaces to give me coordinates.
Any ideas?
Thank you.
Volume Surfaces, the 0 elevation is the point of intersection between 2 surfaces. Create a surface style that shows just User Defined Contours, set the surface's UDC's to use just the 0 elevation, extract the UDC's. Do this for each pair of surfaces you wish to examine.
There's also minimum distance between surfaces - outputs a series of lines in 2011 but a polyline in 2012 - which may be a better option
neilyj (No connection with Autodesk other than using the products in the real world)
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....and these lines can be joined and converted to features to get the z value from the excavation surface.....
neilyj (No connection with Autodesk other than using the products in the real world)
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Thank you for your help. I did find success using the minimum distance between two surfaces command, but only because I wasn't clear on your procedure. It sounds like a handy solution to have available and I would like to learn the procedure to use in the future. I will have a look in the Users Guide for more information on the process. Thanks again.
The lines in 2011 and the polylines in 2012 are 3D at the elevations of intersections.
Cheers,
Peter Funk
Autodesk, Inc.
I seem to remember that the lines in 2011 were only really of any use as a visual clue to the interface of two surfaces whereas the polyline in 2012 is much more useful
neilyj (No connection with Autodesk other than using the products in the real world)
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