[yt-users] Unstructured grid yt support‏‏ -question

Matthew Turk matthewturk at gmail.com
Thu Jul 17 05:15:30 PDT 2014


Hi Ariadna,

How about tomorrow at 10AM PDT?

-Matt

On Wed, Jul 16, 2014 at 11:43 AM, Ariadna Murguia
<doggies012 at hotmail.com> wrote:
>
> Hi!
> Don't worry, I'm thankful for your help. My data is a vtk legacy file for
> unstructured grid. The coordinates are of the vertex, but the values of the
> variables are cell-center. I'm available on thursday and on friday before
> noon (PDT). Are you available?
> Ariadna
>
>
>> Hi Ariadna,
>>
>> Sorry for the delay in my reply. I think that there might need to be
>> a slight modification to the script I sent to get it working for your
>> data. Ultimately, none of the reshaping/loading/etc matter -- the end
>> result, where you supply particle_position_x, particle_position_y, and
>> particle_position_z is the important part. Do you think that it would
>> be feasible to do that with your data? And, are your data values
>> vertex defined or cell-center defined? If the former, the technique I
>> showed should work, but if the latter, there is likely a much easier
>> technique to use.
>>
>> Today I'm going to have limited availability, but perhaps we could set
>> up a time on Thursday or Friday to go over this in our IRC channel,
>> with lower latency responses?
>>
>> -Matt
>>
>> On Tue, Jul 15, 2014 at 12:58 PM, Ariadna Murguia
>> <doggies012 at hotmail.com> wrote:
>> > Hi!
>> > My data has 3 coordinates (cylindrical), although the angle is cero (so
>> > it
>> > is a 2D simulation). I changed it to 3, but still vals.size/3 is not an
>> > integer. Can you tell me the order of your data? In the simulations I'm
>> > using the first numbers correspond to the 3 coordinates of each of the
>> > cells
>> > vertex. Then, there is a number for the shape of the mesh (4 in the case
>> > of
>> > squares), followed by the list of vertex. After that, it has the values
>> > of
>> > the variables inside the square.
>> > Thank you for your help,
>> > Ariadna
>> >
>> >
>> >> Are you doing 3D visualization? The simulation I was using when I
>> >> wrote that script was 2D -- if yours is 3D, you will likely need to
>> >> change it to 3, rather than 2, in that line. If you give a bit more
>> >> info about the data (shape for instance) I can try replicating it
>> >> here.
>> >>
>> >> -Matt
>> >>
>> >> On Mon, Jul 14, 2014 at 2:51 PM, Ariadna Murguia
>> >> <doggies012 at hotmail.com>
>> >> wrote:
>> >> > Hi!
>> >> > I wrote a while back asking to visualize a dataset in an unstructured
>> >> > grid
>> >> > with AMR and a vtk output file. I was given a script that could do
>> >> > simple
>> >> > visualizations: http://paste.yt-project.org/show/4879/ .
>> >> > I tried altering it in order to visualize my data but (line 39), the
>> >> > number
>> >> > of elements in my vals array is odd, making the reshape become an
>> >> > error.
>> >> > Is
>> >> > there a way around it?
>> >> > Thank you very much
>> >> > Ariadna Murguia Berthier
>> >> >
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