<br><br>On Friday, May 27, 2016, Markus Haider <<a href="mailto:markus.haider@uibk.ac.at">markus.haider@uibk.ac.at</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hi John,<br>
<br>
Thanks for hinting me to ds.ortho_ray. This is what I meant :-)<br>
<br>
Btw, For a different anaylsis I would need to understand how the
yt.box command works. Does it contain all the cells which have their
center between the left and right boundaries or only cells which
have both their center and edges between the specified left and
right boundaries?</div></blockquote><div><br></div><div>It will contain all the cells that have centers between the left and right edge.<span></span></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000"><br></div><div bgcolor="#FFFFFF" text="#000000"><br>
<br>
Cheers,<br>
Markus<br>
<br>
<br>
<div>On 2016-05-25 18:44, John Zuhone wrote:<br>
</div>
<blockquote type="cite">
Hi Markus,
<div><br>
</div>
<div>ds.ortho_ray should work?</div>
<div><br>
</div>
<div><a href="http://yt-project.org/docs/dev/reference/api/generated/yt.data_objects.selection_data_containers.YTOrthoRay.html#yt.data_objects.selection_data_containers.YTOrthoRay" target="_blank">http://yt-project.org/docs/dev/reference/api/generated/yt.data_objects.selection_data_containers.YTOrthoRay.html#yt.data_objects.selection_data_containers.YTOrthoRay</a></div>
<div><br>
</div>
<div>But as a warning see:</div>
<div><br>
</div>
<div><a href="http://yt-project.org/docs/dev/faq/index.html#why-are-the-values-in-my-ray-object-out-of-order" target="_blank">http://yt-project.org/docs/dev/faq/index.html#why-are-the-values-in-my-ray-object-out-of-order</a></div>
<div><br>
</div>
<div>but that shouldn’t matter for photon_simulator, I
don’t think. </div>
<div><br>
</div>
<div>BTW, since you use this module a lot, I should
probably point out here that there will be no further
development of photon_simulator in yt as it is now being
transitioned into a new package, pyXSIM:</div>
<div><br>
</div>
<div><a href="http://bitbucket.org/jzuhone/pyxsim" target="_blank">http://bitbucket.org/jzuhone/pyxsim</a></div>
<div><br>
</div>
<div>which is stable now but doesn’t have adequate
documentation for me to have an official release. It will be the
same software as the yt version with some minor adjustments. If
you want to try it, mail me off-list and I can tell you how to
install it and how to re-write your script to work with it. </div>
<div><br>
</div>
<div>The version currently in yt will stay there for the
time being, so no need to worry, but I will not be updating it
unless there are bug reports. </div>
<div><br>
</div>
<div>Best,</div>
<div><br>
</div>
<div>John</div>
<div><br>
</div>
<div>
<div>
<blockquote type="cite">
<div>On May 25, 2016, at 12:39 PM, Markus Haider
<<a href="javascript:_e(%7B%7D,'cvml','markus.haider@uibk.ac.at');" target="_blank">markus.haider@uibk.ac.at</a>>
wrote:</div>
<br>
<div>
<div>Hi John,<br>
<br>
Thanks for your fast reply. So generally we are trying
to make a mock spectrum of a galaxy cluster around the
iron line. I enclosed the script I use, but maybe it is
not of a big help as I just started doing this. You are
probably right that I should youse ds.region. What I
wanted to do is selecting a line of sight which is only
one cell wide (native resolution of the simulation) but
e.g. 1 Mpc deep.<br>
<br>
Cheers,<br>
Markus<br>
<br>
On 2016-05-25 18:28, John Zuhone wrote:<br>
<blockquote type="cite">Hi Markus,<br>
<br>
Can you send a script so I can figure out what you are
trying to do exactly?<br>
<br>
You probably need ds.region, but if you send a script
I will know for sure.<br>
<br>
John Z<br>
<br>
Sent from my iPod<br>
<br>
<blockquote type="cite">On May 25, 2016, at
12:23 PM, Markus Haider <<a href="javascript:_e(%7B%7D,'cvml','markus.haider@uibk.ac.at');" target="_blank">markus.haider@uibk.ac.at</a>>
wrote:<br>
<br>
Hi,<br>
<br>
I wanted to use the photon simulator for mock x-ray
observations on single cells and line of sights
using single cells. For this I wanted to select the
cells using covering_grid, but then I get the
following error:<br>
<br>
photon_simulator.py is doing<br>
delta_min, delta_max =
data_source.quantities.extrema("d%s"%ax)<br>
and the result is<br>
YTDataSelectorNotImplemented: Data selector
'covering_grid' not implemented.<br>
<br>
But maybe covering_grid is not the right thing for
what I had in mind, how would you select the cells
to pass as data_source to the photon simulator?<br>
<br>
Cheers,<br>
Markus<br>
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