[yt-users] doing SPH smoothing without smoothing lengths (or with them inputted manually)

[Brendan Griffen]

Hi,

As I understand yt is able to construct an array based on cloud-in-cell
assignment but not using sph assignment. Each particle must have their own
smoothing lengths. Could a rudimentary smoothing length be assigned within
yt if particles don't already have a smoothing length? The volume rendering
looks great for gas with a 'density' field but if I want to create a sph
smoothed field also called 'density' for the dark matter particles, my only
option for particle data at this point is cloud in cell assignment? This
looks OK for large scale full homogeneous runs but for zoom-ins cloud in
cell looks pretty terrible.

Or could you even feed yt the smoothing lengths (say output from subfind)
as a vector which yt then uses for the sph assignment? This might be a good
first step as I already have the smoothing lengths pre-calculated in hsml
files from subfind.

Thanks.

Brendan
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