[yt-users] Slice plot error

Ji Suoqing jisuoqing at gmail.com
Sun Sep 16 16:18:49 PDT 2012


Hi Nathan,

Thanks for your prompt response.

> Can you reply with the output of the 'yt stats' command.

(yt-x86_64)[jisuoqing at hpcmanage object]$ yt stats cellular_hdf5_chk_0000 
yt : [INFO     ] 2012-09-17 03:22:02,644 Parameters: current_time              = 0.0
yt : [INFO     ] 2012-09-17 03:22:02,644 Parameters: domain_dimensions         = [1280   64    1]
yt : [INFO     ] 2012-09-17 03:22:02,644 Parameters: domain_left_edge          = [ 0.  0.  0.]
yt : [INFO     ] 2012-09-17 03:22:02,645 Parameters: domain_right_edge         = [ 256.    12.8   12.8]
yt : [INFO     ] 2012-09-17 03:22:02,645 Parameters: cosmological_simulation   = 0.0
yt : [INFO     ] 2012-09-17 03:22:02,655 Adding unknown field enuc to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,655 Adding unknown field ar36 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,655 Adding unknown field c12  to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,655 Adding unknown field ca40 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field cr48 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field fe52 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field he4  to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field mg24 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field ne20 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field ni56 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field o16  to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field s32  to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,656 Adding unknown field si28 to list of fields
yt : [INFO     ] 2012-09-17 03:22:02,657 Adding unknown field ti44 to list of fields
level	# grids	       # cells
------------------------------
  0	    64	        262144
----------------------------
   	    64	        262144


t = 0.00000000e+00 = 0.00000000e+00 s = 0.00000000e+00 years

Smallest Cell:
	Width: 1.620e-25 mpc
	Width: 1.620e-22 kpc
	Width: 1.620e-19 pc
	Width: 3.342e-14 au
	Width: 7.190e-12 rsun
	Width: 3.106e-06 miles
	Width: 1.953e-03 unitary
	Width: 5.000e-01 1
	Width: 5.000e-01 cm

It seems that the only problem is related with slice plot.

Best wishes,
Suoqing

On Sep 16, 2012, at 6:56 PM, Nathan Goldbaum <nathan12343 at gmail.com> wrote:

> Hi Suoqing,
> 
> This error will show up if yt cannot select any data.  Recently we
> changed the way yt handles 2D FLASH data so it's possible that these
> changes have messed up data selection for your setup.
> 
> Unfortunately it's difficult to say the exact reason why data
> selection is broken without knowing more about your setup.
> 
> Can you reply with the output of the 'yt stats' command.  Run this
> from the command line.
> 
> It would also help to see the minimum and maximum z values of your
> data.  There are a number of ways to do this but a sample script would
> look something like this:
> 
> pf = load(your_data)
> dd = pf.h.all_data()
> print dd['z'].min(),  dd['z'].max()
> 
> Cheers,
> 
> Nathan
> 
> 
> On Sep 16, 2012, at 2:23 PM, Ji Suoqing <jisuoqing at gmail.com> wrote:
> 
>> Hi all,
>> 
>> Yesterday I've updated YT (af06f14fcd9e), but after that I found I got some error in slice plot for 2d FLASH data, in both cartesian and cylindrical cases. In cartesian, the error is:
>> 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> 
>> yt : [WARNING  ] 2012-09-17 01:19:45,023 integer runtime parameter checkpointfilenumber overwrites a simulation scalar of the same name
>> yt : [WARNING  ] 2012-09-17 01:19:45,023 integer runtime parameter plotfilenumber overwrites a simulation scalar of the same name
>> yt : [INFO     ] 2012-09-17 01:19:45,029 Parameters: current_time              = 1.01787779719e-09
>> yt : [INFO     ] 2012-09-17 01:19:45,029 Parameters: domain_dimensions         = [1280   64    1]
>> yt : [INFO     ] 2012-09-17 01:19:45,029 Parameters: domain_left_edge          = [ 0.  0.  0.]
>> yt : [INFO     ] 2012-09-17 01:19:45,030 Parameters: domain_right_edge         = [ 256.    12.8   12.8]
>> yt : [INFO     ] 2012-09-17 01:19:45,030 Parameters: cosmological_simulation   = 0.0
>> yt : [INFO     ] 2012-09-17 01:19:45,040 Adding unknown field enuc to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,040 Adding unknown field ar36 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,040 Adding unknown field c12  to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,040 Adding unknown field ca40 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,040 Adding unknown field cr48 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,040 Adding unknown field fe52 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field he4  to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field mg24 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field ne20 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field ni56 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field o16  to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field s32  to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field si28 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,041 Adding unknown field ti44 to list of fields
>> yt : [INFO     ] 2012-09-17 01:19:45,356 Max Value is 4.25001e+07 at 22.7500000000000000 0.8375000000000000 0.5000000000000000 in grid FLASHGrid_0001 ([64 64  1]) at level 0 (45, 33, 0)
>> yt : [INFO     ] 2012-09-17 01:19:45,401 Making a fixed resolution buffer of (dens) 800 by 800
>> Traceback (most recent call last):
>> File "slice.py", line 14, in <module>
>>   p1 = SlicePlot(pf, "z", my_var, origin="left-domain")
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/visualization/plot_window.py", line 949, in __init__
>>   PWViewerMPL.__init__(self, slc, bounds, origin=origin)
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/visualization/plot_window.py", line 473, in __init__
>>   if setup: self._setup_plots()
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/visualization/plot_window.py", line 725, in _setup_plots
>>   self.plots[f].image, cax = self.plots[f].cax)
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/matplotlib/figure.py", line 1196, in colorbar
>>   cb = cbar.Colorbar(cax, mappable, **kw)
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/matplotlib/colorbar.py", line 743, in __init__
>>   ColorbarBase.__init__(self, ax, **kw)
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/matplotlib/colorbar.py", line 258, in __init__
>>   self.draw_all()
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/matplotlib/colorbar.py", line 272, in draw_all
>>   self._process_values()
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/matplotlib/colorbar.py", line 570, in _process_values
>>   b = self.norm.inverse(self._uniform_y(self.cmap.N+1))
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/matplotlib/colors.py", line 948, in inverse
>>   return vmin * ma.power((vmax/vmin), val)
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/numpy/ma/core.py", line 3642, in __mul__
>>   return multiply(self, other)
>> File "/aphelion/jisuoqing/yt-x86_64/lib/python2.7/site-packages/numpy/ma/core.py", line 936, in __call__
>>   if m:
>> ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
>> 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> 
>> And in cylindrical case, the error is:
>> 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> 
>>>>> from yt.mods import *
>>>>> pf=load('relax_hdf5_chk_0000')
>> yt : [INFO     ] 2012-09-17 01:22:27,082 Parameters: current_time              = 0.0
>> yt : [INFO     ] 2012-09-17 01:22:27,082 Parameters: domain_dimensions         = [256 128   1]
>> yt : [INFO     ] 2012-09-17 01:22:27,082 Parameters: domain_left_edge          = [  0.00000000e+00  -6.55360000e+09   0.00000000e+00]
>> yt : [INFO     ] 2012-09-17 01:22:27,082 Parameters: domain_right_edge         = [  1.31072000e+10   6.55360000e+09   1.74532925e-02]
>> yt : [INFO     ] 2012-09-17 01:22:27,083 Parameters: cosmological_simulation   = 0.0
>>>>> p1 = SlicePlot(pf, 'z', 'dens', origin="left-domain")
>> Traceback (most recent call last):
>> File "<stdin>", line 1, in <module>
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/visualization/plot_window.py", line 948, in __init__
>>   slc = pf.h.slice(axis, center[axis], fields=fields)
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 1045, in __init__
>>   self._refresh_data()
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 315, in _refresh_data
>>   self.get_data()
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 830, in get_data
>>   self._generate_coords()
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/data_objects/data_containers.py", line 1079, in _generate_coords
>>   for grid in self._get_grids():
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/utilities/parallel_tools/parallel_analysis_interface.py", line 898, in _get_grids
>>   return ObjectIterator(self, attr='_grids')
>> File "/aphelion/jisuoqing/yt-x86_64/src/yt-hg/yt/utilities/parallel_tools/parallel_analysis_interface.py", line 102, in __init__
>>   raise YTNoDataInObjectError(pobj)
>> yt.utilities.exceptions.YTNoDataInObjectError: The object requested has no data included in it.  It may lie on a grid face.  Try offsetting slightly.
>> 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> 
>> I would very appreciate it if you have any idea on solving these errors.
>> 
>> Best wishes,
>> Suoqing
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