Extruding a surface non uniformly

Replies to This Discussion

Permalink Reply by Pieter Segeren on August 11, 2013 at 9:55am

Hi Avo,
I had these ideas prepared for your previous discussion (why close it?), but noticed you moved the question over here.
Hope I understood your goal correctly~
(N.B.: attachments made in GH090056)

Attachments:

• surf__PSG.gh, 28 KB
• Surf_PSG.gh, 20 KB

Permalink Reply by Avo Sanchez on August 12, 2013 at 1:23am

Thanks a lot for the answer, Pieter.

I downloaded the files... but i don't understand them.. there are quite a lot of things i don't know how to use, because i'm still using the basic comands...

Is there a way i can understand them, or explain them for a total noob?

Thanks

Permalink Reply by Sylvain Usai on August 12, 2013 at 1:51am

If there is a component you don't know, you can use the CTRL+ALT+RMC to see where it comes from in the tabs, that might be a good start.

Permalink Reply by phillip on August 12, 2013 at 3:50am

Another approach with less different components.
(Note it will give you a different result than Pieter´s solution though.)

Permalink Reply by Avo Sanchez on August 12, 2013 at 8:42am

Thanks for the answers.. i'll try to practice some of it because im not really used to it...

I don't know how can i control the parameters of the solid... i mean.. how could i change the params so i can hace a surf wich is thinner on the edges and woder going to the middle of it? can i have an exact width for each? (f.ex, .20 edges and .7 miidle)

Permalink Reply by phillip on August 12, 2013 at 9:40am

You set the accuracy of defining the solid by the numbers of divisions of the surface. Here as represented by U & V input at [SDivide].

The slider will define the distance of the points being moved.

(f.ex, .20 edges and .7 miidle)

Rember the precision of this number will be highly influenced by the amount of divisions and the chosen loft options though.

Note that your input crvs are not the curves to be lofted to create the solid here.

It is not necessary and the only reason for this is to equalize the number of division in order to have a more -let´s say- balanced geometry at the end.

Permalink Reply by Avo Sanchez on August 12, 2013 at 9:47am

just a question, i think i got it... the second icon in the "make solid" group... what is it? i cant find it, i only have to put this one and i think i got it! :)

Permalink Reply by Avo Sanchez on August 13, 2013 at 2:08am

OK! done! it was a flip component (dont know it's use)

Thanks!

Attachments:

• Extrusión_Grosor_Variable.3dm, 26 KB
• Extrusión_Grosor_Variable.gh, 11 KB

Permalink Reply by Sylvain Usai on August 12, 2013 at 9:00am

Interesting use of gene pool for multiple slider !

edit : using graph mapper instead of gene pool may allow you to have smoother evolution in your values 

Permalink Reply by Sylvain Usai on August 12, 2013 at 9:25am

and flipping matrix should allow you to deal with the different thickness from edge to midle :

(insert the flip matrix in philip's definition).

Edit : I REALLY like the gene pool hack! thank you :)

Permalink Reply by Pieter Segeren on August 13, 2013 at 12:36pm

Hi Avo, I decided to use a new-ish component (PipeVariable), and extract the pipes' seam (U-curve) to get the resulting offset. (n.m.: since your curves were planar and on parallel frames). It worked pretty good with your original surf.3dm file, but I later noticed it doesn't work very consistent with other curves~ I'm sorry.
So I'm glad to see you have achieved what you wanted some other way, probably better.
(for all the surfaces to join into one closed Brep, you need to flatten the imput of the BrepJoin component.)