by SurvTech31 » Tue Dec 14, 2010 1:56 pm
I tried to do this a few weeks ago using 2010 embedded w/ AutoCAD and was successful creating a surface. I can't speak to the accuracy of the data, but I was able to bring "google" data into Carlson.
Before using the command you have to do a couple things. First, you have to make sure that you set your coordinate system in your drawing setup. Second, make sure you have google earth open.
Then run the command (surface --> Import/Export Surface Data --> Import Google Earth Surface). You have two options for the extent. 'Query' is the first, this is if you have zoomed in within google earth to your site, hitting query will pull the limits from google earth. The 'Select with Drawing Window' is simply creating a window within Carlson. If you use the second option, google earth should zoom to the corresponding area.
I did not mess with the Pixel Sampling Interval. Hit ok and it should ask you where you would like to save your .tin file. The command does not actually import/draw the surface from the .tin file, so you will have to bring in the .tin file (surface --> contour from tin file). Hope this was useful.