When I create ranges for levels under the analysis tab when editing surface properties, I now get an incorrect no. of ranges. Put simply, if I need 6 ranges, I set it to 6 and it gives me 7. If I put it to 7, it gives me 7. If I set it to 8 it gives me 9. My maths might be bad but this is quite incorrect.
This is a real stupid problem and a real pain, as I have hundreds of surfaces I need to correctly range and I don't want to have to edit every single table in vanilla cad to take out or add in an extra range manually.
Is there a workaround or fix for this, or is this another Autodesk 'feature' which will continue into the next release?
Something similar was covered in this post http://forums.autodesk.com/t5/AutoCAD-Civil-3D/Sur
Yes, thanks Andrew. I'd seen that before.
It would be nice if someone from Autodesk could respond and say why this hasn't been resolved and why it's so difficult to build the same number of ranges as that which itself actually specifies.
I just worked out in civil 3d 2013, if you want 10 ranges for Elevation, you can change the Create ranges by: dropdown and choose range interval and use a range interval that will give you the number of ranges you need then edit the elevation values if needed.
For example - with a surface that has a maximum elevation of 50 and minimum elevation of 10, if I want 10 ranges, I would enter a value of 4 in the range interval. I get the 4 by maximum elevation minus minimum elevation and divide that by the number of ranges I want. So (50-10)/10 = 4
Not ideal but will give you the number of ranges you want without pulling your hair out.
Obviously something is wrong in the set ranges by number of ranges calculation.
There is a post or two on exporting and importing the surface analysis using tools available from the UK and ANZ country kits. The output is just a plain text file which can be edited and then import.
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