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   I am new to creating surfaces in c3d with Google Earth (GE). My coordinates are correctly set (NAD83 Oregon State Planes (Polyconic), North Zone, Intn'l Foot) and my surfaces come out beautiful except for one thing - where the actual survey and google earth may differ by a few feet, c3d is off by more than a hundred feet. For example: The actual contours range in elevation from 184' to 196'. In panning GE the elevations range from 180' to 200'. In C3d, however, they range from 55' to 61'. What's up with that?

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PWRFL Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27.Jan.2012 Location: United States Using: Civil 3d Status: Offline Points: 1	Topic: Civil 3d 2011 and Google Earth Surface Posted: 27.Jan.2012 at 18:10
	I am new to creating surfaces in c3d with Google Earth (GE). My coordinates are correctly set (NAD83 Oregon State Planes (Polyconic), North Zone, Intn'l Foot) and my surfaces come out beautiful except for one thing - where the actual survey and google earth may differ by a few feet, c3d is off by more than a hundred feet. For example: The actual contours range in elevation from 184' to 196'. In panning GE the elevations range from 180' to 200'. In C3d, however, they range from 55' to 61'. What's up with that?
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Civil 3d 2011 and Google Earth Surface

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CAD discussions, advices, exchange of experience