Forums >> Revit Building >> Technical Support >> Parametric Arc Sweeps - How to Bypass the Concentric Arc????

Phaeax

active

Joined: Mon, Mar 5, 2012
29 Posts
No Rating

Hi, I running 2013

I am creating a string of lights which will hang from a ceiling. Think party lights or Christmas lights. I want this string of lights to be faced based. (More Flexible) I want to be able to adjust the depth which the center hangs from the ceiling. (The Radius) I also want to be able to adjust the length of the arc. I can only seem to apply parameters to one or the other, length OR depth. If I try to create both parameters, I am greeted with the error of trying to overconstrain my model. This is due to the arc being set to concentric. How can I bypass this? I want to change the radius and the length of arc from within my project and as instances, typically.

Thanks!

This user is offline

dingohot

active

Joined: Mon, Mar 15, 2010
199 Posts

Arc is far more complicated to handle with parameters comparing with straight lines.

it has radius, length, and center point and they are closely related each other.

So you have to use formula to handle arc lines somtimes. (ex. Pythagorean theorem)

and here's and example..

http://youtu.be/twLRmd0gXfE

-----------------------------------

want more?

You can get more tips at Enjoy Revit

This user is offline

View Website

Divide arc by length

2

ARC LEADER NO TEXT

4

Arc Walls with curved top?

4

Revit 2012 stretch arcs

6

Adaptive Component - Flaky Arc

2