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Changing the position of an imported geometry in the COMSOL coordinate system

Posted Nov 21, 2012, 10:05 a.m. EST Geometry 12 Replies

Andrea Marie Scholl
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Hi everyone,

I'm trying to change the positions of two imported geometries in the COMSOL coordinate system. Unfortunately, after scaling them, they are not placed in the point of origin but somewhere else.

Changing positions of geometries created in COMSOL is no problem but as I am dealing with imported geometries I have difficulties at that point. Does anyone know how to accomplish that?


Thank you.
12 Replies Last Post Jul 19, 2017, 7:55 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 Nov 21, 2012, 1:13 p.m. EST
Hi

but cant you "just" "move" also an imported geometry ?

--
Good luck
Ivar
Hi but cant you "just" "move" also an imported geometry ? -- Good luck Ivar
Andrea Marie Scholl
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Posted: 1 decade ago Nov 22, 2012, 5:05 a.m. EST
Yes, indirectly, I already found out how it is done.

Just right click Geometry and the select Move under Transforms. That was a little tricky as I expected to find the Move button right away and under Transforms...
Yes, indirectly, I already found out how it is done. Just right click Geometry and the select Move under Transforms. That was a little tricky as I expected to find the Move button right away and under Transforms...
Seunghun Baek
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Posted: 8 years ago Nov 7, 2016, 9:25 p.m. EST
But how do you find out the coordinates of your geometry.
I know how to use move function, however, I cannot find out the coordinates of edges of my rectagular geometry.
But how do you find out the coordinates of your geometry. I know how to use move function, however, I cannot find out the coordinates of edges of my rectagular geometry.
Jeff Hiller COMSOL Employee

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Posted: 8 years ago Nov 8, 2016, 8:20 a.m. EST
Hello Seunghun,
You can use the Measure button to determine the coordinates of vertices in your geometry. See Reference Manual, version 5.2a, pages 393-394. All manuals are accessed through File > Help > Documentation.
Best regards,
Jeff
Hello Seunghun, You can use the Measure button to determine the coordinates of vertices in your geometry. See Reference Manual, version 5.2a, pages 393-394. All manuals are accessed through File > Help > Documentation. Best regards, Jeff
Qasim Ranjha
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Posted: 7 years ago Jul 13, 2017, 12:31 a.m. EDT

Hello Seunghun,
You can use the Measure button to determine the coordinates of vertices in your geometry. See Reference Manual, version 5.2a, pages 393-394. All manuals are accessed through File > Help > Documentation.
Best regards,
Jeff


Hi Jeff,

Is it possible to modify/edit an imported geometry in COMSOL. For example, if I import .mphbin file which has 2 concentric cylinders and I want to change the size (height or radius) of those cylinders. Is it possible? If yes, please let me know. Thank you.
Ranjha
[QUOTE] Hello Seunghun, You can use the Measure button to determine the coordinates of vertices in your geometry. See Reference Manual, version 5.2a, pages 393-394. All manuals are accessed through File > Help > Documentation. Best regards, Jeff [/QUOTE] Hi Jeff, Is it possible to modify/edit an imported geometry in COMSOL. For example, if I import .mphbin file which has 2 concentric cylinders and I want to change the size (height or radius) of those cylinders. Is it possible? If yes, please let me know. Thank you. Ranjha
Jeff Hiller COMSOL Employee

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Posted: 7 years ago Jul 13, 2017, 2:54 p.m. EDT
Hi Qasim,
You would not import a .mphbin file in that case. Instead you'd use "insert sequence" and point to the .mph file which contains the parametrized geometry.
Best,
Jeff
Hi Qasim, You would not import a .mphbin file in that case. Instead you'd use "insert sequence" and point to the .mph file which contains the parametrized geometry. Best, Jeff
Qasim Ranjha
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Posted: 7 years ago Jul 13, 2017, 5:48 p.m. EDT

Hi Qasim,
You would not import a .mphbin file in that case. Instead you'd use "insert sequence" and point to the .mph file which contains the parametrized geometry.
Best,
Jeff


Hi Jeff,

Thank you very much for the help. It means its always better to save your geometry as .mph file rather than .mphbin file. I hope COMSOL would fix this in the next release. This would be helpful in case someone wants to do parametric analyses for geometric dimensions or in a case where you are creating a complex geometry want to save and resume it later.

Best
Qasim
[QUOTE] Hi Qasim, You would not import a .mphbin file in that case. Instead you'd use "insert sequence" and point to the .mph file which contains the parametrized geometry. Best, Jeff [/QUOTE] Hi Jeff, Thank you very much for the help. It means its always better to save your geometry as .mph file rather than .mphbin file. I hope COMSOL would fix this in the next release. This would be helpful in case someone wants to do parametric analyses for geometric dimensions or in a case where you are creating a complex geometry want to save and resume it later. Best Qasim
Jeff Hiller COMSOL Employee

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Posted: 7 years ago Jul 14, 2017, 8:02 a.m. EDT
Hello Qasim,
Each format has its relative benefits and drawbacks as far as geometry transfer is concerned. One benefit of the mphbin format is its portability between versions, i.e. you can create a geometry in a recent version of COMSOL, save it as an mphbin file and then import it into an older version of COMSOL Multiphysics. Another benefit of the mphbin format is the smaller file size. On the other hand, the mph format retains the history of steps needed to create a geometry and its parametrization.
Best regards,
Jeff
Hello Qasim, Each format has its relative benefits and drawbacks as far as geometry transfer is concerned. One benefit of the mphbin format is its portability between versions, i.e. you can create a geometry in a recent version of COMSOL, save it as an mphbin file and then import it into an older version of COMSOL Multiphysics. Another benefit of the mphbin format is the smaller file size. On the other hand, the mph format retains the history of steps needed to create a geometry and its parametrization. Best regards, Jeff
Qasim Ranjha
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Posted: 7 years ago Jul 15, 2017, 2:13 p.m. EDT
Hi Jeff,

Yes, portability is a great advantage. However, addition of an option to save and reload the geometry as sequence would be a great help too. A single geometry file without mesh should still be of small size.
Thank you.

Qasim
Hi Jeff, Yes, portability is a great advantage. However, addition of an option to save and reload the geometry as sequence would be a great help too. A single geometry file without mesh should still be of small size. Thank you. Qasim
Jeff Hiller COMSOL Employee

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Posted: 7 years ago Jul 17, 2017, 7:59 a.m. EDT
You can also create parametrized geometry parts and store them into a user library to share between models. Given your latest post in this thread, this does seem to be what you are after. See Reference Manual for COMSOL Multiphysics, version 5.3, page 419 and following.
Best regards,
Jeff
You can also create parametrized geometry parts and store them into a user library to share between models. Given your latest post in this thread, this does seem to be what you are after. See Reference Manual for COMSOL Multiphysics, version 5.3, page 419 and following. Best regards, Jeff
Qasim Ranjha
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Posted: 7 years ago Jul 19, 2017, 5:07 a.m. EDT
Yes, That's another option too. Thank you for the detailed answers to my question.
I have another question. Is it possible to export the solution (spreadsheet or sectionwise) to Tecplot?
Best
Qasim
Yes, That's another option too. Thank you for the detailed answers to my question. I have another question. Is it possible to export the solution (spreadsheet or sectionwise) to Tecplot? Best Qasim
Jeff Hiller COMSOL Employee

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Posted: 7 years ago Jul 19, 2017, 7:55 a.m. EDT
Hello Qasim,
Since this latest question is unrelated to this thread, please consider starting a new thread. You are more likely to get responses from Discussion Forum users if your question is in a thread with a related subject line.
Best regards,
Jeff
Hello Qasim, Since this latest question is unrelated to this thread, please consider starting a new thread. You are more likely to get responses from Discussion Forum users if your question is in a thread with a related subject line. Best regards, Jeff

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