Hello all,
We usually interpolate boundary values from an explicitly defined function.
I have a good understanding of how to deal with this kind of cases with a
constrain matrix. However, in my current project I need to interpolate
boundary values from a previously found FE solution. In other
On 03/29/2018 07:23 PM, Weixiong Zheng wrote:
Just a quick question: are there functions to measure mesh quality?
I didn't see anything in FAQ and only saw one old post without an answer.
There isn't anything immediately that produces mesh quality measures, but all
of the pieces are there.
Hi
Just a quick question: are there functions to measure mesh quality?
I didn't see anything in FAQ and only saw one old post without an answer.
Thanks in advance!
Weixiong
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Both idea work fine now. Thank you so much!
在 2018年3月29日星期四 UTC-7上午11:31:23，Jean-Paul Pelteret写道：
>
> Hi Weixiong,
>
> So, have you looked at the FAQ as the error message suggests? There’s also
> actually a discussion on this point in the very first tutorial. Here’s the
> relevant snippet for
Thanks, the former doesn't work but the latter way works fine.
在 2018年3月29日星期四 UTC-7上午11:31:23，Jean-Paul Pelteret写道：
>
> Hi Weixiong,
>
> So, have you looked at the FAQ as the error message suggests? There’s also
> actually a discussion on this point in the very first tutorial. Here’s the
>
On 03/28/2018 03:48 PM, Qing Yin wrote:
I would like to post that snippet of code. To be honest, I verified the
solution in a naive way, that is, I compare the two different number of
processes solutions in paraview. The comparison(including data range,
plot curve over time at a point) shows
Hi Weixiong,
So, have you looked at the FAQ as the error message suggests? There’s also
actually a discussion on this point in the very first tutorial. Here’s the
relevant snippet for you:
> At this point, all objects created in this function will be destroyed in
> reverse order.
Thanks, this looks much prettier!
在 2018年3月27日星期二 UTC-7下午5:04:18，Jean-Paul Pelteret写道：
>
> Dear Weixiong,
>
> There’s an interpolation function that should do this for you:
>
> https://dealii.org/8.5.1/doxygen/deal.II/namespaceVectorTools.html#a5e3af70a47cedfaf361cf5c621e94e3d
> The associated
Thanks,
I changed the number to 2 and straight boundary comes out. But I got errors
that I could not understand saying
An error occurred in line <128> of file
in function
void dealii::Subscriptor::check_no_subscribers() const
The violated condition was:
counter == 0
Hi
Thanks so much for the fast reply.
I actually tried changing to:
const Point<2> center (0,0);
const SphericalManifold<2> boundary_description(center);
//const StraightBoundary<2> boundary_description;
//tria.set_all_manifold_ids_on_boundary(0);
tria.set_manifold (2,
Hi
It does give me straight boundary after changing to:
const Point<2> center (0,0);
const SphericalManifold<2> boundary_description(center);
//const StraightBoundary<2> boundary_description;
//tria.set_all_manifold_ids_on_boundary(0);
tria.set_manifold (2, boundary_description);
Nice catch! I forgot to mention it is bilinear. But thanks for all the
explanation.
在 2018年3月28日星期三 UTC-7下午12:42:27，Wolfgang Bangerth写道：
>
>
> > |
> > // The vector I want to output is the solution for vector-valued
> problem.
> > // I want to output the cell-average value for the 0th
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