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Postprocessing using '>'

Posted 5 sept. 2014, 00:54 UTC−4 Results & Visualization Version 4.4 2 Replies

Tianhang Bai
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Hi all,

I have got a question about postprocessing when I am using '>'. For example, I want to show the von mises stress over a domain. The default expression is: fsi.mises, and I can see colour distribution over the domain. However, if I change the expression to fsi.mises>50[kPa], the legend shows 0 to 1. Could anybody tell me what does 0 to 1 mean?

Thanks for you help.


Albert
2 Replies Last Post 5 sept. 2014, 02:07 UTC−4
Gunnar Andersson COMSOL Employee

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Posted: 1 decade ago 5 sept. 2014, 01:58 UTC−4

I have got a question about postprocessing when I am using '>'. For example, I want to show the von mises stress over a domain. The default expression is: fsi.mises, and I can see colour distribution over the domain. However, if I change the expression to fsi.mises>50[kPa], the legend shows 0 to 1. Could anybody tell me what does 0 to 1 mean?


If you use the expression "fsi.mises>50[kPa]", then the plot will contain the result of evaluating the > operator. The result is 1 the inequality is satisfied and 0 where it isn't.

It sounds as if you maybe want to restrict the plot to the the part where the inequality is satisfied. You can do this by right-clicking on the plot in the Model Builder and adding a Filter node, where you enter your logical expression.
[QUOTE] I have got a question about postprocessing when I am using '>'. For example, I want to show the von mises stress over a domain. The default expression is: fsi.mises, and I can see colour distribution over the domain. However, if I change the expression to fsi.mises>50[kPa], the legend shows 0 to 1. Could anybody tell me what does 0 to 1 mean? [/QUOTE] If you use the expression "fsi.mises>50[kPa]", then the plot will contain the result of evaluating the > operator. The result is 1 the inequality is satisfied and 0 where it isn't. It sounds as if you maybe want to restrict the plot to the the part where the inequality is satisfied. You can do this by right-clicking on the plot in the Model Builder and adding a Filter node, where you enter your logical expression.
Tianhang Bai
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Posted: 1 decade ago 5 sept. 2014, 02:07 UTC−4
Hi Gunnar,

Thank you very much for your reply. I tried the filter as you recommended and it worked. Thanks again.


Albert
Hi Gunnar, Thank you very much for your reply. I tried the filter as you recommended and it worked. Thanks again. Albert

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