Problems with Butterfly - won't simulate proberly

Replies to This Discussion

Permalink Reply by Christoffer Thor Paulsen on May 10, 2017 at 10:59am

Hello grasshopper Forum 

The first message, was a little bit thin in its information about the problem and i apologize for that. It had been a long day and night, which lead to a frustrated and short message. Anyhow I really like your opinion upon the problem. 

I have tried for someday to simulate an outdoor wind flow of my own rhino model (Importet from sketchup). Beforehand i went through a tutorial of Mostapha Sadeghipour Roudsari, and everything worked during that tutorial with a provided grasshopper example file for this situation of an outdoor simulation.

Then I tried to simulate upon my own, and got everything to work just fine until the Solution component from Butterfly. Suddenly my Rhino model disappeared and I wasn't able to see if it was working. Still the Solution component was still running, but without any visible content in Rhino.

What could have gone wrong? 

Kind Regards
Christoffer

Permalink Reply by Theodoros Galanos on May 10, 2017 at 5:09pm

Hi Christoffer,

I'll go through your model today and let you know if I find something.

The fact that the simulation is running while Rhino has dissapeared sounds like Rhino closed with some error but the VM was still running (it does that, even after we close the docker window).

I'll check the file and see what I find.

Kind regards,

Theodore.

Permalink Reply by Mostapha Sadeghipour Roudsari on May 10, 2017 at 8:14pm

Thanks Theodore!

Christoffer, Can you share a screenshot on how does it happen? Is it minimized somewhere or is closed / crashed?

Mostapha

Permalink Reply by Christoffer Thor Paulsen on May 10, 2017 at 11:53pm

Maybe i didn't formulate myself properly, but Rhino does not crash or minimize, but the 3D model inside Rhino disapears and I can't see the simulation visualization.

But thank you guys, really appreciate it!

Kind regards

Christoffer 

Attachments:

• screenshot.PNG, 315 KB
• screenshot 2.PNG, 304 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on May 12, 2017 at 8:57am

Hi Christoffer,

I opened your Rhino file and there are two issues:

1. The units are in mm which doesn't seem to be right. The heights of the buildings are 12 units.

2. The model if way far from the origin (0, 0, 0).

Fix the scale and move the model closer to the origin and that should help you to solve the problem.

Permalink Reply by Christoffer Thor Paulsen on May 13, 2017 at 3:44am

Hey Mostapha

I actually made it work, thank you!
But it still seems that my 3D model dispears except from the perspective view. Any solution to that? I would like a some good views for picture, to document the wind flow.
I have attached a screenshot.

Attachments:

• Udklip.PNG, 223 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on May 13, 2017 at 2:28pm

This is probably because you're getting some values out of scale and the vectors are so large that makes your geometry not to show up. The reason for that is most probably because some of the "probes" are not inside the solution domain. Make sure none of the "probes" are located inside the buildings.

Permalink Reply by Christoffer Thor Paulsen on May 13, 2017 at 2:30pm

I haven't been able to find my model in the Rhino views, it only returns when I end the simulation. 

Furthermore I tried to keep on the simulation and got something out of it! But I would like the Legend to be visible as well, which I can not. Any solutions to how I can? 
I have attached a screenshot, of how it looks like, when I have set the component to preview. 

Thank you! 

Attachments:

• Udklip 2.PNG, 424 KB

Permalink Reply by Mostapha Sadeghipour Roudsari on May 13, 2017 at 2:42pm

Can you share a cleaned version of your file? That way it will be easier to help.

Permalink Reply by Christoffer Thor Paulsen on May 13, 2017 at 3:36pm

Thank you for taking the time to help me Mostapha, you are to kind. 

I have attached the files. 

Attachments:

• Outdoor_airflow_hjulmagervej.gh, 429 KB

Permalink Reply by Christoffer Thor Paulsen on May 13, 2017 at 3:40pm

I could only upload them one at a time.. 

Attachments:

• Hjulmagervej.3dm, 2.7 MB

Permalink Reply by Mostapha Sadeghipour Roudsari on May 13, 2017 at 4:10pm

You need to clean the Rhino file. There are objects far from the origin in the file and Rhino has a hard time to render the views. I copied only the buildings that you need for simulation in a new file which is attached.

Two more comments:

1. You can union all these geometries into 4 clean closed polysrf. Use BooleanUnion, and MergeAllFaces commands.

2. Do you really need the columns to be in the analysis?

Attachments:

• cleaned_master_plan.3dm, 261 KB

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