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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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How to draw a half circle ??

Posted Sep 21, 2012, 4:07 a.m. EDT Low-Frequency Electromagnetics Version 4.2a 2 Replies

Muthuraman Chinnadurai
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Hi Friends,
can you help me to draw a half circle of radius 35mm.

Thanks in advance.
2 Replies Last Post Sep 21, 2012, 5:13 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Sep 21, 2012, 4:45 a.m. EDT
Hi

you have three ways:

1) draw the full circle, draw a box covering the half, subtract the box from the full circle.
2) insert the shape with the Bezier curves, you need to check the doc to get the correct sqrt(2) value in the right place
3) draw with freehand, via Bezier using the grid placed on the radius as help points

--
Good luck
Ivar
Hi you have three ways: 1) draw the full circle, draw a box covering the half, subtract the box from the full circle. 2) insert the shape with the Bezier curves, you need to check the doc to get the correct sqrt(2) value in the right place 3) draw with freehand, via Bezier using the grid placed on the radius as help points -- Good luck Ivar
Magnus Ringh COMSOL Employee

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Posted: 1 decade ago Sep 21, 2012, 5:13 a.m. EDT
Hi,

Another option is to set the Section angle to 180 degrees in the settings window for the Circle geometry object.

Best regards,
Magnus Ringh, COMSOL
Hi, Another option is to set the Section angle to 180 degrees in the settings window for the Circle geometry object. Best regards, Magnus Ringh, COMSOL

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