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AutoCad Civil 3D 2009

AutoCad Civil 3D 2009

AutoCad Civil 3D 2009

(OP)
Hi, I use autocad, but I'm absolutely new to autocad Civil, I need to do a Profile of a street and some sections, I have the center lines, the curves with elevations, but I have no clue how to do the profile. I did an alignment with the street center line but the profile turns out flat, how can I take into consideration the curve lines with elevations so it does the profile correctly taking into consideration what I have?

RE: AutoCad Civil 3D 2009

Step 1: Create a existing surface using your survey points and break lines.
Step 2: Create your alignment <done>
Step 3: Create a profile from a surface -- this will give your profile the height you need.
Step 4: Create a proposed profile by layout. Use the tools on the toolbar to create tangents and curves.
Step 5: Create an assembly (typical section)
Step 6: Create a corridor using your alignment, profile assembly.

http://usa.autodesk.com/adsk/servlet/oc/offer/form?siteID=123112&id=9552665

RE: AutoCad Civil 3D 2009

(OP)
Hey, thanks, I'm sorry to bother but, how exactly do I create step 1? "Step 1: Create a existing surface using your survey points and break lines."

I mean, there are so many types of surfaces when I click create surface. Which one do I use? triangulation? grid? volume?

Thank you very much..!  

RE: AutoCad Civil 3D 2009

(OP)
thanks...

RE: AutoCad Civil 3D 2009

Create TIN surface. Volume surface is for the volume difference between two surfaces. You most likely will not have a grid surface (points on a grid); you more likely have grid points supplemented with points on breaklines, etc.

The help files are very good. So are the Autodesk-sponsored books, which at around $70 each, are pretty cheap for training.

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