topic Re: Microclimate and wind analysis still can't be tied to a pre defined site or zone in Forma for Design Forum

Microclimate and wind analysis still can't be tied to a pre defined site or zone

tlagardeAJBTA — Thu, 13 Aug 2026 16:23:37 GMT

Hello all, there is still a major UX problem.

Microclimate and wind analysis still can't be tied to a pre defined site or zone, only custom circle and radius, which are not easily reproducible. Is there a reason that we can't tie these analysis to a pre defined circle, maybe something specific, zone for wind and climate ?

Please advise

Edit:, I must have been something wrong, it's working now, it just centers the custom circle inside your boundary when you select it.

Re: Microclimate and wind analysis still can't be tied to a pre defined site or zone

maxime_briens — Fri, 07 Aug 2026 12:48:14 GMT

Hello! Thank you for reaching out.

- First of all, why a circle?
The circle shape is intentional. Wind and microclimate analyses depend on all directions simultaneously — we compute 8 wind directions and simplify the resulting octagon into a circle. So while it may feel limiting, it reflects how the physics actually works under the hood.

- Now, if I understand your request correctly, the real issue isn't the shape itself, but the ability to reuse the same area consistently across analyses.
Good news: you can already do this today using site limits and zones.

When you select one or more existing site limits as your analysis area (the same way you would for other analysis types), the circle is automatically centered on that site limit. This means:

No manual repositioning each time
Consistent placement across analyses
A reproducible setup tied to your project geometry

That being said, I am taking good note of request for a more straight forward way to persist placement of custom circles for wind and microclimate analyses. We'll keep it in mind for future improvements.

I hope that you will find this answer helpful.

Let us know if you need any additional help.

Maxime — Autodesk Forma

Re: Microclimate and wind analysis still can't be tied to a pre defined site or zone

tlagardeAJBTA — Fri, 07 Aug 2026 14:37:46 GMT

Hello there, this is not true, I just tried it again. The Custom circle does not position itself in the center when you select a zone or a site limit, it would be nice but it's just not the case currently.
See attached pictures

Could you fix it ?

Re: Microclimate and wind analysis still can't be tied to a pre defined site or zone

maxime_briens — Wed, 12 Aug 2026 07:52:39 GMT

Thank you for taking the time to share these images.

This seem strange, indeed. I have tried to replicate on several of my projects but could not, so it seems that there may be a problem specific to your proposal.
To make sure and to help you solve this issue, the best in this case would be to continue this conversation privately, this way I could help you debug this specific proposal. I will reach out to you by private message.

Hope this helps.

Maxime - Autodesk Forma