COMSOL Forums: Getting the same data as postcrossplot uses to plot?

Re: Getting the same data as postcrossplot uses to plot?

Mon, 08 Mar 2010 17:05:18 +0000

Hi!

Ivar is right. I used "postinterp".

Good luck,
Masoud

Re: Getting the same data as postcrossplot uses to plot?

Mon, 08 Mar 2010 11:34:14 +0000

Hi

Isn't it the functionality of "postinterp" (in contrary to "posteval") that you are looking for ?

Try a search with these function names on your doc files and on the Forum

and dump your model as a ".m" file, or just analyse your "history" file for examples of the function calls

Good luck
Ivar

Re: Getting the same data as postcrossplot uses to plot?

Mon, 08 Mar 2010 09:33:46 +0000

Hi,

Did you find a solution ?
Il have the same problem ...

Getting the same data as postcrossplot uses to plot?

Thu, 11 Feb 2010 17:49:38 +0000

Hi!

When I use GUI windows in COMSOL through Domain Plot Parameter tab, I can plot an expression like Von Mises stress. Then buy using "Export Current Plot", on top of that figure, I can export all the data points to my hard drive or MATLAB. As you know these data points are not located on Nodes and the number of data points here is relatively smaller than the number of nodes.

In my work, this fact helps that I have less number of data points. So now I am looking for a command that I can use in my m-file that gets this type of data for me without plotting that expression. See I do not use GUI COMSOL and all my work is being done in MATLAB via m-file. I already know that posteval gives the value of an expression on all nodes, but this is not suitable for me.

I will greatly appreciate it if you could guide me and introduce a suitable command to me.

Thanks,
Masoud