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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 The information provided may be out of date.

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Extruded round edges don't appear smooth

Posted Mar 20, 2014, 12:49 p.m. EDT Geometry Version 4.4 2 Replies

Sam Astbury
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Hi all,

I'm a complete COMSOL novice, so I'm probably missing something extremely obvious, however:

I am drawing essentially a circle with a rectangle cut out of it to provide a flat edge, and extrude this in the z direction so I have a flat-sided cylinder.
In the 2D workplane, the edge of the shape appears very smooth, however, after extrusion the circular top appears jagged, and not a smooth curve like it was pre-extrusion.

Does anyone have any tips/fixes for resolving this issue?
I've attached a screenshot of the image- you can see it's not very smooth.
Many thanks in advance,

Sam
2 Replies Last Post Mar 21, 2014, 5:48 a.m. EDT
Gunnar Andersson COMSOL Employee

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Posted: 1 decade ago Mar 21, 2014, 3:02 a.m. EDT
Internally, the top is represented as a circular arc - what you see is a visualization artifact. You can change the quality if you want to:

1. Open the Preferences dialog.
2. Select Graphics and Plot Windows in the list to the left.
3. Select "Fine" in the Detail combobox near the top.
4. Click OK.
Internally, the top is represented as a circular arc - what you see is a visualization artifact. You can change the quality if you want to: 1. Open the Preferences dialog. 2. Select Graphics and Plot Windows in the list to the left. 3. Select "Fine" in the Detail combobox near the top. 4. Click OK.
Sam Astbury
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Posted: 1 decade ago Mar 21, 2014, 5:48 a.m. EDT
Brilliant, Gunnar- fixed my issue.

Many thanks!
Sam
Brilliant, Gunnar- fixed my issue. Many thanks! Sam

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