This would certainly depend on many factors about the specifics of your
site, but...
Why not create a TIN volume surface (eg vs fg), then raise/lower the fg
incrementally, rebuilding the volume/checking the result until you are
'close' enough. There are so many variables (usually) involved in this
situation, it seems like a waste of time trying to get an actual 0 balance
this way.
That's what I've found works *best* for the situations I typically
encounter. Hope it helps.
wrote in message news:5593267@discussion.autodesk.com...
I am in the process of doing a volume balance on a site and wonder if anyone
has a work around for this.
I know the grading volume tools will automatically adjust the surface to get
a zero balance between the two surfaces but the surface volume tools does
not. I was thinking about it and came to the conclusion that I could use the
grading volume tools to generate a volume report and balance the surface
levels to zero with a bit of "twickery".
Unfortunately it was not a simple operation and failed but here's how I did
it.
I imported the existing and proposed surfaces then created a grading group,
created a 1m long featureline and graded it as 0.1m flat with the auto
surface creation on.
Then pasted the proposed surface into the GG surface and trimmed to a
boundary line. From that I was able to use the grading volume tools to
create a cut and fill volume and then balance to zero. Unfortunately it only
balanced the area of the grading (moving it 8'000m up wards) so I failed to
work.
Now I don't really want to create grading around the whole development in
order to do this as I know that it will blow up my PC but it seems to be the
only method left. Unless anyone knows another method to achieve the same
result?.