<div dir="ltr">Excellent, I'll give this a whirl. Thank you!<div><br></div><div>Brian</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jul 26, 2015 at 4:27 PM, Matthew Turk <span dir="ltr"><<a href="mailto:matthewturk@gmail.com" target="_blank">matthewturk@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Yup!</p><div class="HOEnZb"><div class="h5">
<br><div class="gmail_quote"><div dir="ltr">On Sun, Jul 26, 2015, 3:12 PM Brian O'Shea <<a href="mailto:bwoshea@gmail.com" target="_blank">bwoshea@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Matt,<div><br></div><div>Thanks for the quick reply! Just to make sure I understand what you're saying - assuming I create my region with:</div><div><br></div><div>my_reg = ds.arbitrary_grid(left, right, dims=[800,1, 800])<br></div><div><br></div><div>if I were to do:</div><div><br></div><div>dmdens = my_reg[("deposit", "all_density")]<br></div><div><br></div><div>gets me a NGP-deposited density of all particles, and</div><div><br></div><div><div>dmdens = my_reg[("deposit", "all_cic")]<br></div></div><div><br></div><div>will get me the CIC-deposited density? </div></div><div dir="ltr"><div><br></div><div>Brian<br></div></div><div dir="ltr"><div><br></div><div><br></div><div><br></div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jul 26, 2015 at 4:08 PM, Matthew Turk <span dir="ltr"><<a href="mailto:matthewturk@gmail.com" target="_blank">matthewturk@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Hi Brian,</p>
<p dir="ltr">"density" as a suffix instead of "cic" will go to NGP.</p>
<p dir="ltr">Matt</p>
<br><div class="gmail_quote"><div><div><div dir="ltr">On Sun, Jul 26, 2015, 2:48 PM Brian O'Shea <<a href="mailto:bwoshea@gmail.com" target="_blank">bwoshea@gmail.com</a>> wrote:<br></div></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr">Hi folks,<div><br></div><div>I'm making a movie of dark matter density from an Enzo simulation, and am doing so using the arbitrary_grid mechanism. However, when I'm making the movies, I get some annoying flickering in the color map at early times. As an example, look at the first 3 Gyr or so of this movie (warning: 122 mb):</div><div><br></div><div><a href="http://galactica.pa.msu.edu/~bwoshea/data/cosmo_zoom_movies/dm_dens_x_algae.mp4" target="_blank">http://galactica.pa.msu.edu/~bwoshea/data/cosmo_zoom_movies/dm_dens_x_algae.mp4</a><br></div><div><br></div><div>I am pretty sure that the flickering is due to an unfortunate interplay between whatever grid deposition is being used by the arbitrary_grid functionality and a moving image center. I'd like to test this theory by forcing the particles to be deposited in a different way - say, by nearest-grid-point instead of cloud-in-cell. Is it possible to do this? I can't find anything in the documentation that makes it clear how to do this with the arbitrary_grid mechanism, but on the other hand there are other places in yt (the particle plotting tools, for example) where one can specify ngp vs. cic.</div><div><br></div><div>Any suggestions would be greatly appreciated!</div><div><br></div><div>Thanks,</div><div>Brian</div><div><br></div><div>p.s. If anybody's interested, the (hacktacular and ugly) script I'm using to generate movie frames can be found here: <a href="http://paste.yt-project.org/show/5746/" target="_blank">http://paste.yt-project.org/show/5746/</a></div><div><br></div><div><br></div></div></div></div>
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