Hello Jason,
Could you mind to post up your DWG file and Correct me if I am wrong.....
As far as I understand, the 2D surface area is calculated based on the surface
(TIN or grid) instead of the contour itself in Civil 3D.
Contours should be only a type of visualization(style), once explode, contours
become ACAD polyline and should miss the outer information (triangles). I
guest the 2D area should be less (still Depending on your contour distribution).
> Andy Chan wrote:
>
>> Hello mstg007,
>>
>> When you explode the Contour lines, they are not longer Civil 3D
>> objects,
>>
>> the area should be wrong.
>>
> Care to elaborate? Why would a contour line (closed) have a
> different area than a 2D polyline (closed) that has the same geometry?
>
> Civil 3D 2007, SP1A
> Dell Precision M70
> 2 GIG RAM, 256 MB nVidia Quadro FX Go1400
> Intel Centrino 2 gHz Processor
> http://beneaththelines.blogspot.com
>