[ncl-talk] Triangulation selection

David Brown dbrown at ucar.edu
Fri Nov 6 13:05:06 MST 2015


OK thanks for the offer. I will look into this as soon as possible.
 -dave

On Fri, Nov 6, 2015 at 1:02 PM, Mathieu Dutour <mathieu.dutour at gmail.com> wrote:
> Thanks!
>
> Please tell if I can help. I know how to program in C and C++.
>
>   Mathieu
>
> On Fri, Nov 6, 2015 at 8:42 PM, David Brown <dbrown at ucar.edu> wrote:
>>
>> Hi Mathieu,
>> Sorry for the delay in responding. I am going to take a look at your
>> examples and see whether there is a fixable issue, or whether further
>> development is needed to handle your cases. I suspect the latter, but
>> I am not sure. In any case, we do want to make this work in a
>> satisfactory manner.
>>  -dave
>>
>> On Thu, Oct 29, 2015 at 11:45 AM, Mathieu Dutour
>> <mathieu.dutour at gmail.com> wrote:
>> > Dear all,
>> >
>> > I have a problem when plotting data from an unstructured mesh.
>> >
>> > The problem that happen is that some triangles are omitted on the
>> > boundary is therefore not as nice as it could be. This happens in
>> > at least two contexts (files in attachment):
>> >
>> > Case 1:
>> > I select with   mpLeftCornerLatF  and similar a box
>> > to make a plot. The nodes that are selected are the ones
>> > inside the box and the triangles used are the ones of those
>> > nodes. The problem is that some of the surface on the border
>> > is not filled because the nodes that cover it are outside of the
>> > box.
>> >
>> > Case 2:
>> > I select with a box a box that contains all the points of the model.
>> > The problem is that apparently some triangles on the boundary
>> > are not used and I do not see why. If all triangles were used then
>> > I would get a collored rectangle. This problem is independent
>> > of the above as I made sure that all points are used.
>> >
>> > In both cases, if I outcomment
>> >   res2 at sfElementNodes      = f->ele
>> > the result is somewhat nicer but it does not really solve the essence
>> > of the problem, which is missing triangles.
>> >
>> > Any help on addressing this problem would be much appreciated.
>> >
>> >   Mathieu
>> >
>> >
>> >
>> >
>> >
>> >
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>
>


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