Hi everyone,

I was making some projections using the YT module installed on Nautilus and encountered an odd issue:  The projection is broken up and appears to be sort of tiled and jumbled around.  You can see the result here: http://galactica.icer.msu.edu/~bcrosby/data/1024box/images/RedshiftOutput0009_Projection_z_particle_density.png
It looks similar to problems that arise from off-axis projections, but this projections are straight down the axis.  I'm puzzled about what would be causing this, as the same script produced normal, smooth images earlier.  Here's the plotting call that I used:

                fn = "RD%04i/RedshiftOutput%04i" %(fnum,fnum)
                pf = load(fn)
                pc = PlotCollection(pf, center=[0.5,0.5,0.5])
                for axis in range(3):
                        p = pc.add_projection("particle_density",axis)

Any clues as to what might be going on?

Thanks,
Brian