Surface Area

[LanggamanXavierMassed]

is there any way you can actually modify a floor or any surface where an input area cannot be changed? that would be so cool.

like, if you adjust a side of a floor or a wall's width, the length adjust to maintain a given area.

[dferreira-blackwell]

could be possible, but not by Revit itself, maybe using dynamo it could be achieved.

[barthbradley]

so, what your are saying is that if one side of a 100 sq. ft. polygon-shaped floor was moved, the other sides (however many there are) would move as well to maintain 100 sq. ft. ???

Sounds like a nightmare.   I'm probably misreading you. 

[constantin.stroescu · Accepted solution]

I think that you will be able to do it by using:

• Global Parameters with Formula - that for System Families like Floors, Walls.
• For Editable Families , use simple Parameters with Formula...

In my example I did it for a Floor:

https://knowledge.autodesk.com/community/screencast/8a178412-2038-4125-a542-0b5bef5601c0

[barthbradley]

How about this one, @constantin.stroescu ?  

[constantin.stroescu]

If I understood well LanggamanXavierMassed  he looks  for shop drawings , shop drawings for prefab elements .At least , I use these for such purposes .

Anyway when I have make such prefab structures I made them by putting together simple rectangular components , like shown below:

  like Henry Ford said:

"Nothing is particularly hard if you divide it into small jobs."

[LanggamanXavierMassed]

that's exactly what i meant

[LanggamanXavierMassed]

thank you sir

[barthbradley]

So you want a "pushmi-pullyu" floor.  

[LanggamanXavierMassed]

but i don't get why put *1m^2, after the inconsistent unit warning, but btw this is really good 

[LanggamanXavierMassed]

yes but in some cases only when the area is a heavy concern.

[constantin.stroescu · Accepted solution]

Why I had to use *1m2?

• When I chose A_Check  Global Parameter , I had not the option of area , but I had the option Number (have a look at the screencast )
• Number has no units (it's abstract) - so ,as long as I use it as an Area Value, Revit expects the Area to be in square meters - that's why I multiplied with 1 unit of Area...

[LanggamanXavierMassed]

oh i see, thank you for this it's very clear,  i'm learning a lot, this is great.