Hi Elizabeth,

It's difficult to tell from just the image you sent.  It's possible this is an issue with your computational domain not being 0 to 1.  Can you do a projection of star_density of the entire box?  That might help us figure out what is going on.

Britton

On Fri, Jun 10, 2011 at 5:02 PM, Elizabeth Tasker <taskere@mcmaster.ca> wrote:
Oddly, neither of those make any difference.

Elizabeth



Britton Smith wrote:
I would also suggest trying some projections instead of slices as well.  Both of those fields are created using the CIC_deposit interpolation method with just the star particles.  I could see a field like that being problematic when doing slices.

Britton

On Fri, Jun 10, 2011 at 4:10 PM, Cameron Hummels <chummels@astro.columbia.edu <mailto:chummels@astro.columbia.edu>> wrote:

   Try using the field StarMassMsun instead of star_density and see
   what it yields.  I've had better luck with that field.

   Cameron


   On 6/10/11 4:00 PM, Elizabeth Tasker wrote:
   Hi,

   Slices of the star_density field are only showing a tiny patch of
   the area in the corner, rather than the whole region. My script
   looks like:

   pc = PlotCollection(pf, center=[17.,11.5, 16])
   p = pc.add_slice("star_density", 2)
   pc.set_width(10, 'kpc')
   p.modify["grids"]()

   Density comes out fine and the grids are drawn in but then only a
   few of them get stars.

   Elizabeth


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