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Joined: Fri, Aug 10, 2007
24 Posts
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Hello everyone!
This is the first time I had to create a terrain using Google Earth data. I always had terrain curves directly in AutoCad so this was never a problem. I'm sure you can find lots of tutorials and videos explaining how to get the terrain into SketchUp, then to AutoCad or to Revit directly.
But I've come across a problem using method Sketch > AutoCad > Revit, wich was to insert the image of the snapshot directly to Revit, and having it scaled and sometimes even aligned. This wasn't totaly accurate, so I tried something that I don't know how many of you have tried. Here it is:
Inside SketchUp, using the bucket tool, then dropper, now you click on the image, then you click on Edit, and after Texture you click on Edit texture image in external editor. You can use whatever software you like. I personaly find easier to just right-click on the image that opens, then Locate on disk, and there you have the image to copy to the project folder (this is a temporary folder).
Now inside the exported DWG file, containing the 3D terrain, turn on the Google_Earth_Snapshot layer, import that image as a raster file, and now you can align and scale that image with the rectangle that apears turning on the layer. This way you can guarantee that the 2D and 3D information you got from SketchUp are alike with the original SKP file.
To import this file into Revit I had a problem that even after exploding it to get the image and the terrain separate to create the toposurface it didn't work out (anyone have any idea why?) So I created 2 dwg files, one containing only the image, and the other containing only the 3D terrain (delete all the rest). When you import both files into Revit you get to create the toposurface from file, and have the image below. Works fine.
Hope you find it useful!
Note: I'm using SketchUp 8 Pro, AutoCad 2012 and Revit Architecture 2014.
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Karina Kohutek | Architect and urban planner
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