is the fillet component buggy or am i doing something wrong?

Hi !

right, so i have these closed curves which are made of both straight and curved segments and i try to fillet them, but i get some awkward results, like curves disappearing or some corners don't get rounded.

these "mishappenings" are somehow related to the fillet radius but i can't figure the relationship.

my question is: can i avoid these somehow?

thanks !

Replies to This Discussion

Permalink Reply by Claas Eicke Kuhnen on February 20, 2010 at 2:27pm

I am not an architect but I ran into many situations where Rhino would fillet it but grasshopper refused
to do it or only partially did it.

Permalink Reply by Andrei Raducanu on February 20, 2010 at 2:48pm

i tried filleting in rhino the curves, to see how it works there, but it seems rhino doesn't have the fillet polyline function...

Permalink Reply by Mitch Heynick on February 20, 2010 at 3:42pm

It does have a fillet polyline function, it's called FilletCorners...

Permalink Reply by Andrei Raducanu on February 20, 2010 at 3:45pm

thanks! i tried it (with the same radius as in gh) and got better results, but still 2 corners were left out (and it actually said this in the status bar or whatever it's called)

Permalink Reply by Mitch Heynick on February 20, 2010 at 3:53pm

OK, that says two things - the GH version is not using exactly the same core function as Rhino (or some other critera are coming into play) and there is probably something wrong with your curve if even the Rhino function doesn't work. You might check and see why the curve refuses to fillet - it may be that the fillet doesn't fit because a segment is too short. You can try filleting the corners one at a time with the normal fillet comman and see what happens. Otherwise, post the curve geometry and I can look at it.

Permalink Reply by Andrei Raducanu on February 20, 2010 at 4:11pm

that would be great, thanks!

here they are

Attachments:

curves to fillet.3dm, 87 KB

Permalink Reply by Mitch Heynick on February 20, 2010 at 4:58pm

Well, I found two curves that won't fillet correctly in Rhino (you didn't specify radius, but I tried 2.5) but GH is not doing the same thing (Damien explained that I guess), but on top of that here my display disappears and everything gets all weird... Must be too late, gotta go to bed... --Mitch

Attachments:

curvestofillet-msh.3dm, 105 KB

Permalink Reply by Andrei Raducanu on February 20, 2010 at 5:07pm

yep, those are the same 2 probles i also got. thankf for clearing that up. i got to go to bed too. thanks for the support!

Permalink Reply by Damien Alomar on February 20, 2010 at 4:40pm

I can't help you, but I can shed a little light on this. Filleting is not exposed through the Rhino SDK, which means that the filleting logic that's used in Rhino is not available. David wrote his own filleting logic for the Fillet component within GH, so chances are its not nearly as rock solid as the logic in Rhino. So that explains why Rhino can do it and GH can't...

Permalink Reply by Andrei Raducanu on February 20, 2010 at 4:43pm

ok, good to know

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