Mode shape animation in GH

Hi to all.

I'm new to GH, and I have some experience in Rhino. And I'm a violin maker. :-)

I would like to animate mode shape in Rhino, using GH.

Here you have some examples of mode shape animation I actually can perform using a dedicated software:

in 3D:

https://www.facebook.com/francescopiasentini/videos/523532707845171/

in 2D:

https://vimeo.com/189618609

The output of Modal Analysis (at a given frequency) is a list of point (x,y,z), each of them has the three coordinates and the maximum displacement in the direction normal to the surface (that's not flat)

Point number   x   y   zmax
1   24,007565   337,876028   -0,654557
2   -28,0404705   337,947773   0,776015
3   57,141457   316,757768   -0,841391
4   18,667466   314,814543   -0,235288

My idea is:

-import stl surfaces of the object (violin)

-import Modal Analysis data

-deform stl (or Nurbs) surfaces using something like a customized CageEdit

-animate this deformation from zero to maximum displacement

-give a color to deformation (or first-second derivative of the interpoled deformation curves)

My wish is to have closed surfaces at any steps, and to create "natural" deformation shapes.

I just tried to import MA data. I was trying to create an array of circles with given x,y,z and radius, I could not figure how to separate information of position and radius when importing the file:

file content:

0,1,0; 5;
2,1,3; 2;
5,2,6; 4;

thanks for yout attention.

Looking forward to hear you soon!

Francesco

Attachments:

Canvas at 10;04;28.png, 49 KB

Replies to This Discussion

Permalink Reply by Giulio Piacentino on May 31, 2017 at 4:08am

Ciao Francesco

could you post the MA file? (as an attachement). Just rename it as .txt if the extension is now allowed. Then I can have a look if importing it is feasible.

Giulio
--
Giulio Piacentino
for Robert McNeel & Associates
giulio@mcneel.com

Permalink Reply by piase on May 31, 2017 at 6:59am