How to edit sloped floors?

[eyalbRAPVR]

I am trying to create a sloped floor that can be edited. I need the underside to be a single plane but the top edited to various heights. Any idea how I can do this?

Thanks

Eyal

[barthbradley]

Make it Variable.  

https://help.autodesk.com/view/RVT/2023/ENU/?guid=GUID-48EB9CC8-BF75-435E-AC99-D34726490AFF

...and then use Modify Sub elements

https://help.autodesk.com/view/RVT/2023/ENU/?guid=GUID-296F9E46-85F9-4E15-9EF2-39411FA44CA3

[eyalbRAPVR]

Maybe I wasn't clear in my exlpanation. I am familiar with Revit floor tools. I add a picture to my post for clarification.
Thanks

[barthbradley]

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@eyalbRAPVR wrote:
Maybe I wasn't clear in my exlpanation. I am familiar with Revit floor tools. I add a picture to my post for clarification.
Thanks

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Where's this picture?

[eyalbRAPVR]

couldn"t load it here... Don't know how to edit the original post

[barthbradley]

Can you describe what the picture is showing? 

BTW, I'm assuming that none of those links I provided were speaking to your point. Is that assumption correct?  

[eyalbRAPVR]

correct. I need to create a floor that is sloped and then to edit it. The underside should be a sloped flat plane and the top should have points in various levels. When you edit a floor with one layer the uderside witll rise with the top. When you use two layers, they will either do the same as one layer or the top one will change thickness. The bottom one cannot be sloped separately from the top. I tried using a sloped reference plane, but that trick didn't work because Revit does not allow to place floors on workplanes, only on levels. If you can think of some workaround I'd be grateful. It's crazy it's not built in. I need this fuction in every project for the parking levels underground.

[vitorbortoncello]

Make one layer variable

[barthbradley]

Underside should be "Sloped Flat Plane"?   What does that mean? "Sloped Flat". 

Are you meaning that the underside slopes differently than the top side. Cut the Floor to shape then.  You can join together 2 differently sloped floors. Cut/Join Geometry both remove Volume at the union.  You can use one floor to shape the other floor and then hide the Floor that is used to shape the other Floor, just as you would hide any other Reference Elements in a View.  

[eyalbRAPVR]

in order to use joined floors I need to make sure that the top one never extends beyond the bottom one. To explain the situation: When you cast a concrete floor for a sloped parking basement, you first cast a sloped floor that has no sideways sloping, but only one general slope. On top of this structural floor you then cast a leveling concrete floor that has sideways angles as required for water draining and cleaning. What you suggest is possible but requires complicated calculations of the intersections between the two floors. I was looking for a shorter, wiser way of doing that. If you can think of any I'd be grateful. I was not able to that. I do have an app, the Environment app that allows for dropping one floor on top of another, or sticking it underneath. However, that makes the two floors the same. That is not what I need. I attach an explanatory sketch.

Thanks for your efforts.

[SteveKStafford]

What sort of real world "floor" is this? Regardless, I'm guessing that shape doesn't remain the same along it's length? I think you'll have to consider an in-place roof using the in-place form/void editing tools or possibly the adaptive curtain wall/massing tool set.

[ToanDN]

Model 2 roofs:

- one sloped (blue)

- one flat (yellow), edit sub-elements, add a void to shave the underside

[eyalbRAPVR]

The sketch is a simplified version of the complex geometry I need to create. I am aware of the option you suggest but that is what I tried to do so far and it is  impossible to do it this way. Both floors/roofs have complex geometry and varying slopes. From all responses I gather this is not possible with the current Revit tools. I will have to use an external tool to do that unfortunately. 

Thanks for the effort!

Eyal

[barthbradley]

Model it exactly how it will be constructed in the real world. That's the best approach. Hasn't failed me yet.    

[eyalbRAPVR]

I agree completely

[barthbradley]

Would an Attach Top/Base capability (one or the other or both) get you to where you want to go?   

 

[eyalbRAPVR]

No it wouldn't. I have this feature with the environment app for Revit. However, I did find a workaround but it requires a lot of work and the creation of assisting elements that must remain in the model. Not a healthy workflow. But the only one I could think of. I hope this feature will be available in Revit by 2040 version along with some other basic features that are missing and bugs that need repair. 

Thank you all!!!