Draping a dwg onto a site massing?

[Anonymous]

So I have a set of topographical contour dwgs that mass fine with the topography tool, but I want to add roads onto it from another dwg. Is there a way like in sketchup to drape the dwg onto the curved topographical massing?

[sureshchotrani]

Wellcome to the community:)

Hope site massing in Revit.

You cannot drap dwg on site massing.

But if you have contour file then you prepare a surface out of it in Revit by importing in 3D view & then applying topography over it.

Also see below site designer tool for Revit

[Anonymous]

Thanks, still a bit confused though. I've attached the two dwg files, one with the 3D contours and another with the road map. Any idea how I could get the road map onto the contours in revit when theyre massed with the toposurface tool?

https://www.dropbox.com/sh/6zsnkb3x158ltfq/AAAacHoryxin_0cVF9SBbbQGa?dl=0

[Revit_LT2 · Accepted solution]

"add roads onto it from another dwg"

Two ways to do that: 

1. Refer to the other dwg in a separate view and get the measurments of the road 

you want to build.

2. Do a screen-clip of the road and trace over the image where you want to build it.

The traced image won't be accurate but you can adjust the lines after the image is gone.

Also that map is 20 miles or something. That's not practical or even usable in Revit.

[Revit_LT2]

The way they are doing it in that video is definitely a third way to

do it, but that way is controversial. Yes you can snap Revit elements

to imported dwg lines, but there can be hidden problems with

doing that. Revit dosn't fully recognize the accuracy of dwg lines.

In-fact, with earlier versions of Revit, when you tried to snap Revit

elements to dwg lines, lots of red lights and siren's when off,

with error messages. I think it's best not to take any chances.

It doesn't take that much time to create Revit elements natively.

[Anonymous]

I just had to hover a dwg over the site and subregion trace over every road, time consuming but got the job done. Thanks for your help. I attatched the final product

[Revit_LT2]

"I attached the final product"

Beautiful work, I enjoyed looking at that. But don't take my

word as gospel on doing it that way because I know lots of

Revit users that don't agree with me about working with

imported DWG lines. One little trick I enjoy when I need to

work with DWG lines is to open a separate session of Revit

and import those lines into that session and use it as a reference.

(Especially if you have two monitors). If it's a 3D DWG, you can

import into the family editor and then load into a project and

have complete control of those lines, like view range, sections etc.

[Base12]

If you have Sketchup Pro or the 30-day trial, make your complete topo surface in Revit, then export it to .dwg and import that into Sketchup , drape your road onto it, and then import the whole thing back into Revit.  Revit won't know it's a "topo object" necessarily, but if you're done doing everything to it you need, it might not matter?