Home› General

Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.

First time visiting? Here are some places to start:
  1. Looking for a certain topic? Check out the categories filter or use Search (upper right).
  2. Need support? Ask a question to our Community Support category.
  3. Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
  4. Be respectful, on topic and if you see a problem, Flag it.

If you would like to contact our Community Manager personally, feel free to send a private message or an email.

Attractor Pattern junction

jean_philippe_delavalladejean_philippe_delavallade Member Posts: 14 ✭✭
in General

Hi,
I'm trying the Attractor pattern on a solid of revolution. It's OK but the problem is that the pattern doesn't join correctly.
See the screenshot.

https://cad.onshape.com/documents/a5f5be574d6a5634babad56c/w/b224ed94db346ffded968616/e/3e37ea518e7fcf68281240a9

Thanks.

Comments

  • S1monS1mon Member Posts: 3,485 PRO
    @Evan_Reese
    I played with this a bit, and I can't easily tweak the parameters to solve the issue either. I suspect that I could hack it by dividing up the revolved bottle shape into a wedge and tweaking the angles until I could get something that would pattern nicely. 

    I vaguely remember these kinds of challenges from using Attractor Pattern in the past. Perhaps the default should be to use the full parameter space with Border=0 even if the instances will only partially be on the surface. There could also be some sort of special accommodation for periodic surfaces.

    Simon Gatrall | Staff Mechanical Engineer | Carbon, Inc.

  • jean_philippe_delavalladejean_philippe_delavallade Member Posts: 14 ✭✭
    "dividing up the revolved bottle shape into a wedge and tweaking the angles until I could get something that would pattern nicely"
    i've tried but the result is the same.
    Thanks
  • S1monS1mon Member Posts: 3,485 PRO
    edited June 2024
    @jean_philippe_de

    Here's what I meant.




    The trick is that I split the surface, and tweaked the 7.4 degree angle until the instances visually lined up with one 1/4 of the whole. 





    Ideally this hack wouldn't be necessary. It would also be tricky to get this to be exact and parametric.

    Simon Gatrall | Staff Mechanical Engineer | Carbon, Inc.

  • jean_philippe_delavalladejean_philippe_delavallade Member Posts: 14 ✭✭
    Thanks !!
    and yes, this hack wouldn't be necessary.
  • EvanReeseEvanReese Member, Mentor Posts: 2,516 PRO
    This issue is on my backlog of things to fix with this feature, but I can't guarantee a timeframe for it. My priorities are elsewhere at the moment. What it needs is a way to tell when the base surface is periodic in the u or v direction, then update the grid accordingly. 
    Evan Reese
    The Onsherpa | Reach peak Onshape productivity
    www.theonsherpa.com
  • jean_philippe_delavalladejean_philippe_delavallade Member Posts: 14 ✭✭
    OK and thanks Evan.
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

Sign In

Categories

Vanilla Forums