[yt-users] Volume render

Sushilkumar sushil.sush19us at gmail.com
Tue Dec 13 08:42:43 PST 2016 

Dear yt:

I am trying to do volume rendering for my data and create a time lapse
movie.

Is there a way to extract and put lower and upper bound while volume
render? This is to maintain a consistency between frames.

My code is below

Thanks in advance


import yt
import numpy as np
import matplotlib.pylab as pl

from yt.visualization.api import Streamlines
from yt.units import km
from mpl_toolkits.mplot3d import Axes3D

ms = 52728000
vector_max=ms-(ms/3)
ms1=ms-vector_max
dims = (260,260,260)

x =
np.genfromtxt("/home/sushilkumar.sreekuma/Desktop/MODEL5/UPDATE/Expl_Bt696.mtx",skip_header=2,usecols=1,
dtype="f8")
x = x.reshape((17576000, 3), order="F")

field1 = x[:,2].reshape(dims, order="F")
field2 = x[:,1].reshape(dims, order="F")
field3 = x[:,0].reshape(dims, order="F")

data = dict(field_z = field1,
            field_y = field2,
            field_x = field3)

bbox = np.array([[-130, 129], [-130, 129], [-130, 129]])

pf = yt.load_uniform_grid(data, dims, km, bbox=bbox, nprocs=1)

im, sc =
yt.volume_render(pf,'field_x',fname='B_rendering_t0696.png',sigma_clip=6)

sc.camera.width = (150, 'km')
sc.camera.switch_orientation()

# Save the zoomed in rendering
sc.save('B_zoomed_rendering_t0696.png')



On Mon, Dec 12, 2016 at 12:54 PM, <yt-users-request at lists.spacepope.org>
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>    1. ANN: yt 3.3.3 release (Cameron Hummels)
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> Message: 1
> Date: Mon, 12 Dec 2016 10:34:53 -0800
> From: Cameron Hummels <chummels at gmail.com>
> To: "yt-dev at lists.spacepope.org" <yt-dev at lists.spacepope.org>,
>         Discussion of the yt analysis package <
> yt-users at lists.spacepope.org>
> Subject: [yt-users] ANN: yt 3.3.3 release
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> We are proud to announce the release of yt 3.3.3!
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> Version 3.3.3 is a regularly scheduled bugfix release including fixes for a
> number of issues reported since the release of yt 3.3.2.  We urge all users
> to update to the latest version.
>
> If your python installation is managed via conda, update following:
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> release:
>
> Nathan Goldbaum
> Cameron Hummels
> Ben Keller
> Kacper Kowalik
> Jonah Miller
> Andrew Myers
> Hsi-Yu Schive
> Britton Smith
> Matthew Turk
> John Wise
> John ZuHone
>
>
> A summary of changes in this release, along with the number of the pull
> request implementing the change follows below:
>
> Additional docstrings for unstructured mesh data.  See PR 2403
> <https://bitbucket.org/yt_analysis/yt/pull-requests/2403/some-hopefully-
> illuminating-docstrings-for/diff>
> .
>
> Speedup in clump finding. See PR 2426
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2426/opt-typedef-array-returned-in/diff>
> .
>
> Speedup in tests. See PR 2427
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2427/use-slighlty-smaller-objects-for-certain/diff>
> .
>
> Bugfixes and docs for Tipsy data. PR 2430
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2430/tipsy-correct-auxiliary-file-footer-skip/diff>
> , PR 2431
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2431/clarify-the-use-of-cosmology_parameters-in/diff>
> .
>
> Bugfix in Ramses time calculation. PR 2433
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2433/bugfix-explicitly-use-integer-division-in/diff>
> .
>
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> 2434/bugfix-explicitly-use-integer-division-in/diff>
> .
>
> Fixing behavior of ProfilePlots and Profiles PR 2437
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
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> , PR 2448
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2448/bugfix-more-careful-treatment-of-profile/diff>
> .
>
> Bugfix for EPSWritter handing dicts in PlotsWindow instances. PR 2440
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2440/updating-eps_writer-to-handle-a-plotwindow/diff>
> .
>
> Ensuring ion fields utilize dataset's metal-specific fields PR 2442
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2442/making-nuclei-density-fields-more-robust/diff>
> .
>
> Assure no orphaned mercurial processes PR 2449
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2449/interact-with-mercurial-repositories-using/diff>
> .
>
> Adding checks for bad values in AbsorptionSpectrum PR 2450
> <https://bitbucket.org/yt_analysis/yt/pull-requests/2450/adding-check-for-
> negative-column-densities/diff>
> .
>
> Bugfix in geographic handler PR 2452
> <https://bitbucket.org/yt_analysis/yt/pull-requests/2452/fixing-x-y-axis-
> confusion-in-the/diff>
> .
>
> Bringing gadget data more inline with other SPH datasets PR 2456
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2456/enabling-gadget-frontend-to-alias/diff>
> , PR 2436
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2436/bugfix-use-integer-division-in-gadget-io/diff>
> .
>
> Bugfix when OpenMP unavailable PR 2458
> <https://bitbucket.org/yt_analysis/yt/pull-requests/2458>.
>
> Enable light_ray_solution saved to actual LightRay class PR 2460
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2460/save-light-ray-solution-to-dataset/diff>
> .
>
> Assure path uses dataset's own unit system. PR 2462
> <https://bitbucket.org/yt_analysis/yt/pull-requests/
> 2462/path-unit-should-use-datasets-unit-system/diff>
> .
>
> Cameron Hummels,
> On behalf of the yt development team
>
> --
> Cameron Hummels
> NSF Postdoctoral Fellow
> Department of Astronomy
> California Institute of Technology
> http://chummels.org
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