New issue 1012: FixedResolutionBuffer with non-unit aspect ratios fails https://bitbucket.org/yt_analysis/yt/issue/1012/fixedresolutionbuffer-with-n... Anonymous: Attempting to use to_frb with more than one dimension fails. Failures seem to be related to yt trying to parse iterable arguments as numbers with units. ``` #!python

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proj = ds.proj("density","z") Delta = (0.1,'code_length') dx = (1./512,'code_length') frb=proj.to_frb(Delta,dx) works great! frb=proj.to_frb( [Delta, Delta],[dx,dx]) raceback (most recent call last): File "<stdin>", line 1, in <module> File "tmp.py", line 22, in <module> frb=proj.to_frb( [Delta, Delta],[dx,dx]) File "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/data_objects/data_containers.py", line 909, in to_frb width = self.ds.quan(w, input_units = u) File "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/units/yt_array.py", line 1153, in __new__ raise RuntimeError("YTQuantity values must be numeric") RuntimeError: YTQuantity values must be numeric

Also I tried using a ds.arr:

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Delta = ds.arr([0.1,0.1],'code_length') dx = ds.arr([1./512, 1./512], 'code_length') frb=proj.to_frb( Delta, dx) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "tmp.py", line 26, in <module> frb=proj.to_frb( Delta, dx) File "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/data_objects/data_containers.py", line 909, in to_frb width = self.ds.quan(w, input_units = u) File "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/units/yt_array.py", line 1155, in __new__ dtype=dtype) File "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/units/yt_array.py", line 308, in __new__ input_array.units = Unit(input_units, registry=registry) File "/home/dcollins4096/local-yt-2014-08-27/src/yt-hg/yt/units/unit_object.py", line 169, in __new__ % (unit_expr, type(unit_expr))) yt.units.unit_object.UnitParseError: Unit representation must be a string or sympy Expr. 0.1 code_length has type .

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