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Forums >> Revit Building >> Technical Support >> Toposurface problem
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Joined: Tue, Feb 2, 2010
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I´m trying to create a toposurface from a CAD file but revit does not follow the CAD lines, it goes through them. I hope the images can help explaining it.
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Joined: Fri, Nov 7, 2008
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It looks like it worked fairly perfectly there, I don't understand what you want to accomplish different to this ?
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Joined: Tue, Feb 19, 2008
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IF ALL THE LINES ARE 3D POLYLINES THEN I WOULD SAY THE CONTOUR LINES ARE TO FAR APART
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The blue lines are the lines that revit was suposed to follow, but it makes those black lines, not in the desired position And the cad drawing has no polylines, its exploded
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The black lines are every meter high, to denote the topography, there serve no other purpose, they aren't part of your topography as such, merely a form of showing the change in surface
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- Just trying to help out while I wait in the office for my renders to complete www.danrossiter.co.uk |
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Revit is not a CIVIL program like Autocad Civil 3D, but, you also have in Revit, the "Site Settings" where you can adjust more or less the interval of your contour lines....
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OH, THAT IS A UGLY CAD FILE!!!!! THE DOUBLED UP LINES ARE A MESS. AND I WOULD MAKE THE CONTOURS CONNECTED POLYLINES. NOT SUPRISED IT IS GOOFY ON YOU
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Generally Revit is using spot elevations and creating its own contours. Looks like you are attempting to create a pad on the site that is raised or lowered. You would be better served to not use contours in the import but spot elevations, if this is from a surveyor. If you created the contour lines in ACAD, that is not how Revit works. Set just a few spot elevation in Revit directly to create the original contours and then use pad tool to create the pad you want.
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Additional hint. If you place a spot elevation just above and or below a contour elevation you can move the contour around. Import your cad drawing as a background only. Then place spot elevation not at the contour elevation and revit will create the contours. You can keep adjusting the position of your spot elevations until you can very nearly match the contours that were originally there. Then ad the pad.
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