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BUG in COMSOL 5.1 on parametric curve design

Posted 16 feb 2020, 09:00 GMT-5 Geometry, Modeling Tools & Definitions Version 5.1 1 Reply

Miko Hakinnen
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Hello forum

I think i found a bug in comsol 5.1 regarding the parametric curve functionality. Specifically, i wish to design a rounded triangle with expressions

x(t)=0.28(cos(t)+0.2cos(2t)) y(t) 0.28(sin(t)-0.2sin(2t))

with 0<t<360. The curve is sketched succesfully but when i try to converse it in solid it gives the message "Output Object is Empty". It is worth mentioning though that the parametric curve gives also the warning "Maximum relative error of parametric curve representation is "3.759914704775483E-4".

I think this is a bug. Miko

1 Reply Last Post 16 feb 2020, 10:45 GMT-5
Edgar J. Kaiser Certified Consultant
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Posted: 5 years ago 16 feb 2020, 10:45 GMT-5

Hi Miko,

in Comsol the trigonometric functions expect radians in the argument. So let the parameter run from 0 to 2*pi and it works.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Hi Miko, in Comsol the trigonometric functions expect radians in the argument. So let the parameter run from 0 to 2*pi and it works. Cheers Edgar

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