[yt-users] yt volume render/AMRKDtree help
samskillman at gmail.com
Tue Jan 8 09:23:43 PST 2013
Hi Renyue, John,
Yeah, so that seems like it is the problem. If you update to the latest yt
your original scripts should work without any transpose=False flags.
Glad to hear the kdtree provided a speedup. I think it is primarily the
le= and re= flags that help out. There are even more enhancements coming
On Tue, Jan 8, 2013 at 9:20 AM, John Wise <jwise at physics.gatech.edu> wrote:
> Hi Renyue,
> That's great news. If it's okay with you, I'll update yt to the latest
> version on pleiades, and you can test whether you get the same results
> after the update.
> On 01/08/2013 12:08 PM, Renyue Cen wrote:
>> Hi Sam,
>> your transpose fix DOES change things and it indeed may working now.
>> Here is the first images I got for comparison.
>> I am going to make a few more pictures to see if things are all good.
>> Thanks very much,
>> On Jan 8, 2013, at 11:25 AM, Sam Skillman wrote:
>> Hi Renyue,
>>> I have actually seen this on one other system but I could never
>>> reproduce it. Could you tell me the version of yt you are using? If
>>> you run "yt instinfo" it should tell you. I haven't seen this bug for
>>> the last few months so I thought it was gone.
>>> Additionally, can you try the following at the end of your script:
>>> write_bitmap(im, 'test2.png', transpose=False)
>>> I think there may have been something wrong with the transposing of
>>> the image for a short time period a few months ago. I have very
>>> sporadic and unreliable internet at AAS but I'll try to respond as
>>> quickly as possible.
>>> Sorry for the trouble,
>>> On Jan 7, 2013 10:11 AM, "Renyue Cen" <cen at astro.princeton.edu
>>> <mailto:cen at astro.princeton.**edu <cen at astro.princeton.edu>>> wrote:
>>> I did some simple volume rendering with the following script:
>>> volume2 = AMRKDTree(pf, fields=["Dark_Matter_Density"]**,
>>> no_ghost=False, tree_type="domain",
>>> le=c-0.5*WW, re=c+0.5*WW)
>>> cam = pf.h.camera(c, L, W, N, tf, volume=volume2, no_ghost=False,
>>> north_vector=L, steady_north=True)
>>> cam.snapshot(fn="%s_iso-**DMdensity-%3.3d.png" % (filenameTHIS,
>>> I got rather strange results in that the pictures look symmetric,
>>> which I am pretty
>>> sure can not be true.
>>> I attach the obtained plot.
>>> Note that I am using KD tree and using 32 cores.
>>> Your help at your earliest convenience is appreciated.
> John Wise
> Assistant Professor of Physics
> Center for Relativistic Astrophysics, Georgia Tech
> yt-users mailing list
> yt-users at lists.spacepope.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the yt-users