[yt-users] stitching data sets together

Jonah Miller jonah.maxwell.miller at gmail.com
Fri Aug 21 20:47:59 PDT 2015


Hi Matt,

The data can certainly be arranged so that there's either full overlap 
or no overlap between the datasets. But I'm not sure what you mean by 
dynamic/computed masking.

Best,
Jonah

On 15-08-21 10:59 PM, Matthew Turk wrote:
> Hi Jonah,
>
> I've been thinking about this, and I wonder if it's possible to 
> identify which sections overlap.  Is there partial overlap between two 
> given cells, or do cells either overlap or *not* overlap?  If there's 
> only full overlap in cells (i.e., a cell in one section totally 
> overlaps with a cell in a different section) then I think we can do 
> dynamic or computed masking and create a single unified dataset.  Does 
> that make sense?
>
> -Matt
>
> On Thursday, August 20, 2015, Jonah Miller 
> <jonah.maxwell.miller at gmail.com 
> <mailto:jonah.maxwell.miller at gmail.com>> wrote:
>
>     Hi Matt,
>
>     Thanks for the reply. The datasets are a six patches coordinate
>     system. I've attached some images of the six data sets, and how
>     they should stitch together. From that, it would be nice to be
>     able to do analysis on them---i.e., make an arbitrary slice plot.
>
>     It's straightforward to stitch /four of/ the actual arrays
>     together and leave out the top and bottom patches. The problem is
>     getting all six to work together.
>
>     Best,
>     Jonah
>
>     On 15-08-20 09:21 AM, Matthew Turk wrote:
>>     Hi Jonah,
>>
>>     Right now, I think this would be tricky.  I'm trying to figure
>>     out precisely how it could be done without compositing the
>>     datasets themselves, and I'm not sure it's terribly feasible at
>>     the time being without some trickery.  One possibility, since the
>>     data is spherical, is to get fixed res buffers for each section
>>     of the plot you want, then utilize matplotlib to stitch those
>>     together into a single plot.  It might help if you had a little
>>     sketch so that your desired outcome could be a bit more visual?
>>
>>     -Matt
>>
>>     On Wed, Aug 19, 2015 at 2:31 PM, Jonah Miller
>>     <jonah.maxwell.miller at gmail.com
>>     <javascript:_e(%7B%7D,'cvml','jonah.maxwell.miller at gmail.com');>>
>>     wrote:
>>
>>         Hi Everyone,
>>
>>         I have data for a simulation in spherical coordinates that I
>>         wish to input into yt and visualize using the generic reader
>>         tools. However, the simulation is broken up into six volumes,
>>         each of which is a solid angle that makes up part of a
>>         sphere. Unfortunately, stitching together the arrays of data
>>         produces a lot of redundancies, there's no easy way to
>>         include all of it in a single array without including the
>>         same data points several times. So what I'd like is a way to
>>         feed in each solid angle as an individual data set, but
>>         visualize all six datasets on a single plot. Is this possible?
>>
>>         Thanks in advance for your help!
>>
>>         Best,
>>         Jonah MIller
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