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how to access co-ordinates of mesh nodes

Posted Sep 1, 2009, 2:52 p.m. EDT 1 Reply

Archana Devasia
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I am using the transient heat diffusion module. The thermal conductivity of one of the sub-domains in the geometry is a user defined function in Matlab and depends on the co-ordinates of the mesh nodes. When I call this function in COMSOL I pass x and y values to it. However I have found that the values as well as the size of x and y change over time (i.e. from time t=0 to tome t=tfinal) and also that these x and y values do not represent the mesh nodes. How can I access the mesh nodes? Are the variables named differently? Please help.

Thank you.
1 Reply Last Post Sep 1, 2009, 6:15 p.m. EDT
Punit Prakash
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Posted: 2 decades ago Sep 1, 2009, 6:15 p.m. EDT
You could use xmeshinfo. If you run xmeshinfo(fem,'out','dofs'), it will return a structure with information about the extended mesh. The coords field of the structure will have the coordinates for all nodes.

You could use xmeshinfo. If you run xmeshinfo(fem,'out','dofs'), it will return a structure with information about the extended mesh. The coords field of the structure will have the coordinates for all nodes.

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