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From: | Marco Vassallo |
Subject: | Re: fem-fenics questions |
Date: | Mon, 3 Mar 2014 10:39:09 +0000 |
2) Since I do not only want to plot the result but also work with it
further, I need to evaluate the result at my grid points. With linear
Lagrange elements, I "could" use the coefficients obtained directly, but
this is probably a bad idea from the point of view of code design. Thus
I'm using feval now, but it is not entirely clear to me how it is
supposed to be called. The doc only says the second argument should be
the "coordinate" of evaluation, but doesn't specify how this coordinate
should look like. It works for me now if I pass an array of x- and
y-coordinate. I guess this is how the function is meant to be called?
Is it also possible to invoke it for lots of points at all? (I think I
read somewhere that this is planned but not yet implemented ... just
checking what the current state is.) This is a very important feature,
IMHO, for everyone working seriously with the result afterwards (and not
just plotting it).
Yours,
Daniel
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