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Hi Cameron,</div>
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Someone else will be able to answer about the depositing but this is a little tricky since the actual kernel depends on which SPH formulation is used: some use a cubic spline, some a quintic, etc., and some have the “smoothing length” as h while other use h/2.
The Springel (2003) paper though is a good place to start; iirc, he has the equation for the cubic spline (along with the definition of h) there.</div>
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—Molly</div>
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<p class="airmail_on">On September 8, 2016 at 1:43:13 PM, Cameron Hummels (<a href="mailto:chummels@gmail.com">chummels@gmail.com</a>) wrote:</p>
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<div dir="ltr">Hey everyone,
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<div>Britton, Devin, and I are writing up the Trident method paper, and we wanted to be explicit about how exactly yt deposits SPH field quantities on to an octree for particle-based fields. Are there any formal equations for this written down anywhere? I
realize SPH support was added since the first yt method paper, so it isn't in there, and I cannot seem to find anything in the docs. I wonder if anyone has anything written down for this or if I'm missing it somewhere?</div>
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<div>Thanks!</div>
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<div>Cameron</div>
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--<br>
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<div>Cameron Hummels
<div><span style="font-size:12.8000001907349px">NSF Postdoctoral Fellow</span></div>
<div><span style="font-size:12.8000001907349px">Department of Astronomy</span></div>
<div><span style="font-size:12.8000001907349px">California Institute of Technology</span><br>
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<div><a href="http://chummels.org" style="font-size:12.8000001907349px" target="_blank">http://chummels.org</a><br>
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