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More services...how to open model files before 3.5a with 4.0a
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6 Replies
Last post: October 15, 2010 12:55pm UTC
August 22, 2010 7:33pm UTC
how to open model files before 3.5a with 4.0a
there are some model on http://www.comsol.com/academic/resources/courses/plawsky/
that I want to learn. But when I open them in 4.0a there show the error:error in opening zip file.
I think they are modeled in a earlier version ?
And how can I deal with it ?Must install a earlier version?
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August 22, 2010 8:35pm UTC in response to ZhenNan TANG
Re: how to open model files before 3.5a with 4.0a
Hi
Today you need to get it into a v3.5a version and then saved it as a 3.5a file, and then import it into V4
--
Good luck
Ivar
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October 6, 2010 8:42pm UTC in response to ZhenNan TANG
Re: how to open model files before 3.5a with 4.0a
If you look under "COMSOL Commands" in the Installation and User's Guide, there's a command to convert pre 3.5a models that you might want to try out.
comsol convertpre35a
I've never used it, and you probably have to either enter it from the command line or make an icon.
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October 13, 2010 4:07pm UTC in response to John Larson
Re: how to open model files before 3.5a with 4.0a
Hi,
I also have the same problem. But I am confused where to type this command: comsol convertpre35a and how to run it? Is it possible to choose which file of V3.5 I want to convert and to choose the path where I want to save the converted file?
If someone knows how to do it, I would be very glad.
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October 14, 2010 7:43am UTC in response to Jing Wen
Re: how to open model files before 3.5a with 4.0a
Well. I am facing the problem that for RF module of V.4.0a, you cannot directly open the model created by old V.3.5a. I have passed this bug to local supporter but still no response. Its kind of wired that you cannot use new version of COMSOL to open old one.
David
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October 14, 2010 9:51pm UTC in response to David Lee
Re: how to open model files before 3.5a with 4.0a
Hi
not all features are there in 4.0a, it's better in V4.1 but probably last compatible features even later. But also COMSOL has cleaned up a few things so its not 100% possible to convert everything I believe.
I systematically rebuild my models from scratch in V4, mostly by having a 3.5 or a second V4 with the translated file as example, its rather quickly done for most models, and there are new and improvesd ways to do things in V4 that were not there before.
--
Good luck
Ivar
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October 15, 2010 12:55pm UTC in response to Jing Wen
Re: how to open model files before 3.5a with 4.0a
Hi,
I also have the same problem. But I am confused where to type this command: comsol convertpre35a and how to run it? Is it possible to choose which file of V3.5 I want to convert and to choose the path where I want to save the converted file?
If someone knows how to do it, I would be very glad.
I was incorrect in my previous post, having version 3.5a installed is required to use the conversion tool.
http://www.comsol.com/support/knowledgebase/1080/
How you enter the commands is somewhat platform dependent but the installation and operations guide has it documented.
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