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Graphing cut line of a solution divided by a point probe value

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Good morning,

Thank you in advance for any help you can provide.

I have an EM simulation in which my region of interest is a cut line. I wish to plot to plot normE of the solution divided by the value of the normE at the origin (which I have from a probe). What is the easiest way to do this? I will describe what I have already tried down below.

Thanks!

Already tried: * I defined a point probe at the origin, then changed the expression to be es.normE. Directly trying es.normE/comp1.V works, es.normE/comp1.normE gives an error. * Next, I tried to use "Join"-> "Explicit" to join the cut line and probe data points. Unfortunately, I keep getting the following error: "Operation cannot be performed on data set cpt1 (Cut point 3D); - Plot: previewplot1 (Line)"


1 Reply Last Post Apr 9, 2019, 2:29 a.m. EDT
Gunnar Andersson COMSOL Employee

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Posted: 5 years ago Apr 9, 2019, 2:29 a.m. EDT

The point probe defines a global variable that typically is called something like ppb1 and has the description "Probe variable ...". To see a list of available variables of that type, open the Add/Replace Expression tree in a scalar evaluation feature and look in the folder Component 1 > Definitions.

I suggest that you create a Line Graph plot in a 1D plot group, set the data set in the plot to the Cut Line, and then plot es.normE/ppb1.

The point probe defines a global variable that typically is called something like ppb1 and has the description "Probe variable ...". To see a list of available variables of that type, open the Add/Replace Expression tree in a scalar evaluation feature and look in the folder Component 1 > Definitions. I suggest that you create a Line Graph plot in a 1D plot group, set the data set in the plot to the Cut Line, and then plot es.normE/ppb1.

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