sdrInflate for kangaroo output geometry

Hi Jon and everyone here

I'm working on a flexible model in Kangaroo and would like to inflate parts of my output structure using the Geometry Gym SdrInflate component

Maybe anyone could have a look on my definition and tell me how I can achieve it?

one part of the model works great but I have problem with the "between" surfaces

I tried to mirror the curves but the created arch surfaces are not contiguous with the inflected grid (created during simulation)

and also they cause a crush of my computer every time I connect it to the mesh + the SdrInflate component

Is there an easier way to achieve these surfaces? or am I doing something wrong?

The inflation does not need to work simultaneously with the Kangaroo simulation. I only need it for rendering of the chosen output

please find attached my definition and a picture for better understanding

I appreciate any help

Agnieszka

Attachments:

model idea.jpg, 858 KB
gridshelmodel_with pattern_test.gh, 55 KB

Replies to This Discussion

Permalink Reply by Jon Mirtschin on April 11, 2012 at 12:50am

Great work Agnieszka.

I had a look, if you refine the mesh for the infills to inflate (you need enough intermediate vertex to get a nice shape) it does become quite computationally heavy.

Not sure if you'll accept the attached approach to visualize something similar.

Attachments:

gridshelmodel_with pattern_test surface infills.gh, 60 KB

Permalink Reply by Agnieszka on April 11, 2012 at 2:32am

Hi Jon

thanks for this reply. It looks very good
however the problem is still there
When I run the simulation, stop it when surface is bend and try to apply the inflation
the small surfaces somehow don't fit to the arch curves anymore, they don't follow the the arches I guess

I attached a picture

Thank you once again

Attachments:

symulation.png, 93 KB

Permalink Reply by Jon Mirtschin on April 11, 2012 at 5:42am

I see, well you need to match the curves in the original position rather than recreate them with deviation.

Hopefully the attached is more helpful. You might want to explore a spline profile curve rather than an arc to get a better shape.

Cheers,

Jon

Attachments:

gridshelmodel_with pattern_test infills.gh, 64 KB

Permalink Reply by Agnieszka on April 11, 2012 at 7:11am

Yes!

That looks really good!

Just one question:

why I get the horizontal rows perfect and the vertical are somehow "sucked in"

do I need to change any settings?

I attached GH and "baked" image

Agnieszka

Attachments:

Untitled3.png, 179 KB
Untitled2.png, 159 KB

Permalink Reply by Jon Mirtschin on April 14, 2012 at 3:32pm

Hi Agnieszka,

I went back and studied your model with my inflation routine, and it flushed out a couple of small issues that seems to be responsible for some odd results and some slow processing times. If you update from http://www.geometrygym.com/downloads and try the attached. Note the "precision" or accuracy is determined by rhino model absolute tolerance. I assume your units are metres, with a 0.001 tolerance the processing time seems acceptable.

Let me know what you see.

Cheers,

Jon

Attachments:

gridshelmodel_with pattern_test infill inflate.gh, 56 KB

Permalink Reply by Agnieszka on April 15, 2012 at 7:45am

Hi Jon

I've updated from your website

unfortunately I'm not able to run the simulation

the file has been saved with reset toggle set to false and slider not set on 5 which gives an error at the moment of opening the definition

when I try to set everything correctly to start the simulation (toggle to true and slider to 5) it gives me an error that keeps on appearing back even when I click on "OK"

please check the attached screen shot

Thank you

Agnieszka

Attachments:

11.png, 146 KB

Permalink Reply by Jon Mirtschin on April 15, 2012 at 8:23am

You can disable the grasshopper solver prior to opening the file and resetting the initial required state. I've attached it here.

I'd recommend disabling the inflation during the kangaroo form finding process, and enabling it only when stopped this process (as per the attached). Let me know if you still see an unrestrained message.

Attachments: