If your using the latest Sketch-up V8, then you can import a location from Google earth (Geolocation tool under the file tab) and draw over it, but to be honest it's a bit awkward until you get used to it.
Best bet is to use the measuring tool over Google Earth, get some idea of real word sizes compared to the straights or curves. The Gravel trap at T1 of Catalunya for example. Then simply draw in your own.
As Tathrim said use the off-set tool to parallel the shape of the corner for that bit of Grass/astroturf before more tarmac or gravel.
Below is T1 of the circuit I'm currently working on.
Last edited by ScotsBrutesFan; 4 May 2012 at 19:38.
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