Over 1.096.000 registered users (EN+CZ).
AutoCAD tips, Inventor tips, Revit tips.
Try the new precise Engineering calculator and the updated Barcode generator.
New AutoCAD 2026 commands and variables.
Discussion forum
?CAD discussions, advices, exchange of experience

Please abide by the rules of this forum.
This is a peer-to-peer forum. The forum doesn't replace the official direct technical support provided by ARKANCE for its customers.
How to post questions: register or login, go to the specific forum and click the NEW TOPIC button.
|
Post Reply ![]() |
Author | |
Schwarz04 ![]() Newbie ![]() Joined: 27.Mar.2010 Location: United States Status: Offline Points: 3 |
![]() Posted: 27.Mar.2010 at 20:34 |
Ok, this is an issue that has been giving me an immense amount of
trouble, I'll try to explain it the best I can...
I was given a set of topographic data comprised of polylines, the size and complexity of the file was such that it is impossible for me to import it into Revit and be able to edit (grade) the surface once I created a toposurface. So... the solution I came up with that by all means should work was to make all the necessary grading changes in AutoCad before importing the file into Revit and creating the toposurface. This way once the toposurface is generated in Revit it will already have all of the grading and places for the building pads in place and all I would have to do is drop my buildings on top of it. This is where I cannot figure out what is going wrong...I make the necessary grading changes in AutoCad and everything looks fine...but once I import the file into Revit and create the toposurface it gets all messed up... To illustrate this I will include screen shots of both the AutoCad file and the Revit file. AutoCad image: http://www.freeimagehosting.net/image.php?8768acfaf3.jpg Revit image: http://www.freeimagehosting.net/image.php?8b5d5f0e96.jpg Any help or suggestions on how to solve this issue would be greatly appriciated! |
|
![]() |
|
CarlB ![]() Senior Member ![]() Joined: 16.Oct.2009 Location: United States Status: Offline Points: 321 |
![]() |
From the screenshots it looks like the Autocad data is merely polylines with elevation, not a defined "surface". I assume Revit tries to make a surface from this info and doesn't know how to interpret the abrupt contour changes around the cutout area.
Don't know ow to fix it but can guess- -create as surface from the polylines first, using something like "edgesurf" -or, do all your grading in Revit. Reduce the file size first by weeding" the contours (lisp routine) |
|
![]() |
Post Reply ![]() |
|
Tweet
|
Forum Jump | Forum Permissions ![]() You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
This page was generated in 0,259 seconds.