fx math notation?

Replies to This Discussion

Permalink Reply by Laurent DELRIEU on August 7, 2015 at 3:26pm

Is it not abs(x)<(pi-0.1) which is a boolean instead of abs(x)-pi "boolean" - 0.1 "double" ?

Permalink Reply by David Rutten on August 7, 2015 at 3:34pm

I think...

Attachments:

• iso_Shell.gh, 10 KB

Permalink Reply by Laurent DELRIEU on August 7, 2015 at 3:39pm

replace & by and !!

-if((abs(x)<(π-0.1))and(abs(y)<(π-0.1))and(abs(z)<(π-0.1)),(2*( cos(y) + cos(z)) +2* cos(x) * cos(z))^2 - .5, -120)

Permalink Reply by Kim hauer on August 7, 2015 at 4:38pm

I have not been able to construct this particular iso surface using a VB gh, so I thought I would give a comparable fx script a try. The K3dSurf equation shows what the Neovius Solid Shell should look like.The K3dSurf equation was simply a copy and paste into my GH script.

Permalink Reply by Laurent DELRIEU on August 8, 2015 at 6:02am

Just to test, direct from Millepede without remeshing I  obtain that (2 shells). Your domain is too big. You just need -Pi to Pi domain. and after removing internal mesh, welding ... smoothing and thickening 

Attachments:

• iso_Shell_LD.gh, 13 KB

Permalink Reply by Kim hauer on August 8, 2015 at 5:40pm

Hi Laurent:

Thanks for your input, I did not realize the importance of -Pi and Pi. In fact its turns that the final ISO geometry for Gyroid Blob1 in K3dsurf, for values of X,Y, & Z are critical (see the blue outline, which contain  - and + values for X,Y,& Z )

Question: How do I incorporate those values into the revised GH you sent me.
Do Xres, Yres, Zres need to reflect those values in the Iso Surface Millipede comp?  (see the 2nd blue outline contained in panel), I've been scratching my head .... raw :)

Attachments:

• iso_Shell_LD_kim.gh, 22 KB

Permalink Reply by Laurent DELRIEU on August 9, 2015 at 1:39pm

Hello here is "blob"

don't forget

x<2+4 is not x<6 it it  is true/false+4 so an error in GH

don't put & but And

Hope it helps

Attachments:

• iso_Shell_LD_kim_LD.gh, 24 KB

Permalink Reply by Kim hauer on August 9, 2015 at 3:38pm

The solution is so easy...... NOW, that I see you split the XY&Z inputs. (hitting head against wall), In time I hope I will be able to think more clearly when it comes to problem solving. Please accept an appreciative "hug" from me.