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how to draw half circle

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i want to draw full circle but i need to divide full circle in to two half circles ,because for one circle i have to give silicon as a subdomain setting and another half circle i have to give air as a subdomain setting, is it possible please explain in details

1 Reply Last Post Apr 19, 2012, 6:03 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 Apr 19, 2012, 6:03 a.m. EDT
Hi
if you have two volumes or areas (in 2D) that overlap then you will get 2 distinct entities, hence you can select left and right half circles. If you add a line over a circle, and combine it into one object, you will have a cut circle

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Good luck
Ivar
Hi if you have two volumes or areas (in 2D) that overlap then you will get 2 distinct entities, hence you can select left and right half circles. If you add a line over a circle, and combine it into one object, you will have a cut circle -- Good luck Ivar

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