Thanks Filip! How do I figure out
a) how many time slices there are and
b) which x (or y or z) slice to choose?
Thanks in advance!
- Chiraag
> The possibly simplest and least effective approach is to store whole
> 3+1D data from the simulation to a HDF5 file. One has to be careful
> that the file may grow really big (gigabytes...).
>
> After running the simulation, one can export the animated data using
> the e. g. similar commands (on Linux with Imagemagick installed):
>
> rm *png
> h5topng -x 13 -t 0:359 -R -Zc dkbluered -a yarg MYFILE.h5
> convert -delay 2 *png slice_x13.gif
>
> In this case, the command specifies the 13th slice of X, producing Y-Z
> slices. With time going through all 360 slices, we create 360
> consecutive PNG images and the last command creates an animated GIF
> file.
>
> Note that with this approach the file size grows with fourth power of
> resolution! For higher resolutions it is advisable to save only the
> slices we want, specifying a 2D volume in the meep time stepping
> routine. I am using Python-MEEP, but scheme version should be similar:
>
> (...)
> ex_YZ_file = prepareHDF5File("ex_YZ.h5")
> while (f.time() < (f.last_source_time()*2):
> f.step()
> f.output_hdf5(Ex,
> volume(vec(size_x/2, 0., 0.), vec(size_x/2, size_y, size_z)),
> ex_YZ_file, 1)
>
> Best regards,
> Filip
>
> 2012/8/31, Chiraag Nataraj <[email protected]>:
>> Hey guys!
>>
>> I'm trying to figure out exactly how 3D stuff works with respect to the
>> post-processing. Yeah, MEEP does the 3D simulation and all, but where
>> do
>> you go from there? I'm not exactly sure how you're supposed to use the
>> data given by MEEP.
>>
>> Thanks in advance!
>>
>> Sincerely,
>>
>> Chiraag
>>
>>> Hey guys!
>>>
>>> Sorry for spamming the list, but as I was playing around just now, I
>>> also
>>> couldn't understand exactly how the slices work when you render a 3D
>>> object in MEEP. MEEP is fine with it, parses it, and comes up with the
>>> H5
>>> files. However, I'm trying to figure out exactly how the slices work.
>>>
>>> Any help would be appreciated.
>>>
>>> Thanks in advance!
>>>
>>> - Chiraag
>>>
>>>
>>> _______________________________________________
>>> meep-discuss mailing list
>>> [email protected]
>>> http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
>>>
>>
>>
>>
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>>
>
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