Hello
How can we remove topography as shown below?
Revit file Attached.
Gelöst! Gehe zur Lösung
Gelöst von jlg_design. Gehe zur Lösung
Seems like you want to do undercutting, which is not supported on toposurfaces unfortunately.
However you cut a toposurface (pad or split surface) it will only cut down vertically at the edges. You can't cut down and then move sideways, or cut a shaft diagonally into a toposurface. Your only option would be to cut out a larger area and then fill on top with something else, maybe a site object modelled in place.
It's not going to work very well for the kind of design shown in your image I think. Hope that helps.
GH_AR
You can do this, but it can be quite tricky.
In a plan view, go to the Massing & Site tab and select the "Split Surface" option
Select the toposurface you want to split, then sketch in the hole you want to cut (this will be hard to get the correct shape from plan view but do your best)
Once you confirm the sketch, you can select the "Split surface" you just created and delete it. Youll be left with a hole in the topo.
You can now sketch in the bearing walls etc and modify the profile to suit the topo. Or you can use Dynamo to have it attach automatically to topography contours.
It works.... but it is not the easiest of things to accomplish.
Hope this helps ![]()
I think the issue is that the rooms penetrate into the mountain side.
You can cut a hole that will act as the entrance and you can build walls inside the mountain and put rooms in there also, but when you draw a section through one of the "caves" it won't give the desired result. The topo hatching will go through the rooms. Effectively, you can only excavate vertically into topography. Similarly you can't make topography that "overhangs" itself.
To put this another way, there is no "tunnel" tool for Revit topography. Maybe one day ![]()
On August 13, 2015, I posted a similar question "How do you cut a horizontal hole in topography" and I never received any good suggestions or solutions. But I believe I have just come up with excellent solution. Similar to Alisider's tricky suggestion, If you place reference planes to define the shape of your opening in plan view, use the building pad tool to create the floor and vertical opening of your cave or tunnel. Then, use the split surface tool over the same opening in plan to create a shell surface over the building pad opening (even though the building pad surface is not visable). This will create the roof over your opening. Select the split surface "roof" with the Edit Surface tool, and remove all points to create an opening in the roof. You will now have a cave/tunnel opening with a shell roof. The only remaining issues are the projection lines of the original topo, building pad cut, and the split surface. Using right click "Overide graphics in view", you can change the projection line colors of each to a color similar to your topo material or shading.
Jeff
Yes indeed, you can place pieces of loose topography, even "on top" of other toposurfaces. I've done this many times. It's a way to create cuttings with sharp edges and sloping banks for example. Can be tedious work, but sometimes worth the effort.
I think you still have the problem of the section view however. As far as I know, all topography in the file has the same "Elevation of poche base" which means the depth to which section hatching extends. So your shell roof will hatch to the same vertical depth as all the other topography in section views.
The only way I've been able to bury buildings and give them a green roof is to make that green stuff as an extrusion, or maybe a massing object if you want it to be lumpy and irregular. Or you could turn off the hatching and do it manually with filled regions (the horror!!)
I'd love to be proved wrong though ![]()
HI Andrew,
For the Elevation of the poche base in a section view, the "Overide graphics in view" can turn off the visibility of the poche base of the split surface roof.
Jeff
Sie finden nicht, was Sie suchen? Fragen Sie die Community oder teilen Sie Ihr Wissen mit anderen.