Hi, I am currently trying to emulate non-uniform gridding by using the scaling transformations provided by this paper http://math.mit.edu/~stevenj/18.369/coordinate-transform.pdf. I just want to make sure that I am implimenting this properly. I want to stretch the y coordinates by 2 times and the z coordinates by 10 times. Thus, I would multiply the permittivity and permeability by the diagonal matrix diag(0.05 0.2 5) as well as multiply the y and z parameters of the blocks in my design by 2 and 5 respectively. Let me know if I am going about this correctly and if I am missing anything. Also is there a way to impliment the scaling to just a small region as opposed to the whole computational cell?
Best, Daniel Heligman
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