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Removing topography from basement

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vincent6062
393 Aufrufe, 5 Antworten

Removing topography from basement

Dear all,
This is a recurring conversation in the forum but perhaps there is a new approach on how to carve out topography from a basement while keeping the terrain above it?
If I create a pad set to the bottom of the basement, then I will lose the topography above the basement and if I do not do that then the basement is full of earth.
I end up either creating a mask region inside the basement in section to hide the earth pattern or I hide the topography and redraw it using a filled region with the earth pattern. Either this is far from ideal, and I cannot find a good workaround.
Some people suggest using Dynamo to transform the topography into a slab so that we can use a Boolean operation to carve out the piece of "slab/ terrain" where the basement is. But then we lose all the nice features of the topography such as primary and secondary contours.
Some people suggest creating the pad anyway and then recreate the missing part of terrain above it with a mass but I do not find this ideal either.
Is it that hard for Autodesk to add a "carve out" feature to their topography tool? That would make the workflow of creating sections much faster.
Anyway, if anyone has a suggestion, I am all ears. And if anyone at Autodesk is reading this, could you please try to enhance your topography tool to include a "basement / tunnel" feature?

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lucdoucet_msdl
als Antwort auf: vincent6062


@vincent6062  a écrit :


Anyway, if anyone has a suggestion, I am all ears. And if anyone at Autodesk is reading this, could you please try to enhance your topography tool to include a "basement / tunnel" feature?


This feature is currently being tested in the Revit Preview versions with a new object type called a Toposolid. No info on the release date though.

 

Until then, I'm still using the Toposurface above structure work-around described in the link below.

 

Topo Above Structure

 

-luc

 

Nachricht 3 von 6
barthbradley
als Antwort auf: vincent6062

If the part of the structure I was planning was subterranean and the planning involved calculating the amount of earth to be removed, I would use a Building Pad to excavate a Phased Graded Region copy of the Toposurface.  

Nachricht 4 von 6
barthbradley
als Antwort auf: vincent6062

BTW: hard to understand the Section View you are showing in your screenshot. It almost looks like a cross-section through BOTH the above and below ground Structures with earth in-between them.  That can't be right.   Or is it?    

 

 

Nachricht 5 von 6
ToanDN
als Antwort auf: vincent6062

It sort of works for sections, but not 3D.

 

ToanDN_0-1657301634225.png

 

ToanDN_1-1657301651387.png

 

 

 

Nachricht 6 von 6
vincent6062
als Antwort auf: barthbradley

It is because in this view, there is the toposurface cut (inside the basment) as well as the filled region drawn manually around the basement which has the same pattern as the toposurface. Apologies if this was not clear. 

Thank you very much also for your responses. 

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