<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I think you only need to specify 0.5, the coordinate at which you take<br>
the slice, not [0.5, 0.5, 0.5].<br>
<div><div><br></div></div></blockquote><div><br></div><div>Thanks, Matt.  I had somehow thought the slice took the center position.  </div><div><br></div><div>Thanks!</div><div>d.</div><div><br></div><div>d.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>
><br>
> Thanks!<br>
><br>
>>>> frb['density']<br>
> yt : [INFO     ] 2014-09-16 09:29:47,060 Making a fixed resolution buffer of<br>
> (density) 512 by 512<br>
> Traceback (most recent call last):<br>
>   File "<stdin>", line 1, in <module><br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/visualization/fixed_resolution.py",<br>
> line 127, in __getitem__<br>
>     int(self.antialias))<br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/geometry/cartesian_coordinates.py",<br>
> line 54, in pixelize<br>
>     antialias, dimension, periodic)<br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/geometry/cartesian_coordinates.py",<br>
> line 67, in _ortho_pixelize<br>
>     buff = _MPL.Pixelize(data_source['px'], data_source['py'],<br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/data_objects/data_containers.py",<br>
> line 237, in __getitem__<br>
>     self.ds.arr(self._generate_container_field(f))<br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/data_objects/selection_data_containers.py",<br>
> line 231, in _generate_container_field<br>
>     self.index._identify_base_chunk(self)<br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/geometry/grid_geometry_handler.py",<br>
> line 280, in _identify_base_chunk<br>
>     gi = dobj.selector.select_grids(self.grid_left_edge,<br>
>   File<br>
> "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/data_objects/data_containers.py",<br>
> line 546, in selector<br>
>     self._selector = sclass(self)<br>
>   File "selection_routines.pyx", line 974, in<br>
> yt.geometry.selection_routines.SliceSelector.__init__<br>
> (yt/geometry/selection_routines.c:22578)<br>
> TypeError: a float is required<br>
><br>
><br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">-- Sent from a computer.<br></div>
</div></div>