topographic surface and authorized platform

[GIBO]

Good morning to all,
I use revit2009 from neophyte and I wanted to ask you this problem that I found with a topographic surface, its platform for building and underground garage. the question is simple, the attached image summarizes better. the building has a basement floor with platform that eliminates the ground properly. I have inserted an additional platform for the garage, now I have erased it to make better understand, that removes the ground correctly at point 2, but also at the end of the insole at point 1 where instead it must remain. In fact if I look at the 3d I see the cover of the garage and not the appropriately shaped topographic sup. What to do?

 

[gfrank]

Welcome to the forum
the design is not explanatory, however:
- the platform removes all the insistent topographic surface above the perimeter of the same platform;
- two platforms can have sides of the perimeter, but not overlapped.
if you are looking for in the forum there are other discussions about platforms

 

[GIBO]

thanks for the welcome and thanks for the answer!
I searched in the forum but did not find how to solve the problem, i.e. how do I put the molded ground back on the garage? ?

 

[GIBO]

the image below should clarify what my problem is.
while the platform is good for the ramp, it does not allow me to cover with topographic surface the roof of the garage itself

 

[gfrank]

see the box below "like debates" oppose uses the search button, however:
http://www.cad3d.it/forum1/showthread.php?t=11382http://www.cad3d.it/forum1/showthread.php?t=13297http://www.cad3d.it/forum1/showthread.php?t=12677