d.I was under the impression that these things used the values of take_log that from FieldInfo, which is False for the velocity components.Using Density instead of x-velocity still throws the same error.
On Fri, Apr 26, 2013 at 5:11 PM, Geoffrey So <gsiisg@gmail.com> wrote:
Could it also be trying to take log of negative values in the velocity? If so changing x-velcity to another positive field would not end in error.FromG.S.On Fri, Apr 26, 2013 at 4:06 PM, David Collins <dcollins4096@gmail.com> wrote:
_______________________________________________x-velocity: [-7.2e+01,5.5e+01]min/max are as follows:Hi, all--I'm running into problems making phase objects. It looks like the error is in the color bar, and is similar to other errors I get when trying to use PlotCollections. The hash I'm on is 34b95297062b. I'm trying:
pf = load(fname)
pc = PlotCollection(pf,'c')
phase=pc.add_phase_object(pf.h.all_data(),['CellMass',
'x-velocity','CellVolume'],weight=None)
CellMass: [4.1e-12,1.5e-03] (30631133,)
CellVolume: [1.45e-11,6.0e-08]Is there a more up-to-date manner to do this that doesn't use PlotCollection? Or is there something obvious that I'm missing?
It seems to be choking in plot_types.py/__init_colorbar
def __init_colorbar(self):
temparray = np.ones((self.x_bins.size, self.y_bins.size))
self.norm = matplotlib.colors.Normalize()
self.image = self._axes.pcolormesh(self.x_bins, self.y_bins,
temparray, shading='flat',
norm=self.norm, cmap=self.cmap,
rasterized=True)
self.colorbar = self._figure.colorbar(self.image,
extend='neither', shrink=0.95,
format="%0.2e" )
It looks like what's happening is figure.colorbar chokes on the fact that temparray is "ones", so the spacing between elements is zero. This is outside of my yt knowledge, though.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "p14_phase_test.py", line 4, in <module>
phase=pc.add_phase_object(pf.h.all_data(),['CellMass','x-velocity','CellVolume'])
File "/nics/b/home/collins/local_2013_03_12/src/yt-hg/yt/visualization/plot_collection.py", line 1184, in add_phase_object
figure=figure, axes=axes))
File "/nics/b/home/collins/local_2013_03_12/src/yt-hg/yt/visualization/plot_types.py", line 815, in __init__
self.__init_colorbar()
File "/nics/b/home/collins/local_2013_03_12/src/yt-hg/yt/visualization/plot_types.py", line 834, in __init_colorbar
format="%0.2e" )
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/figure.py", line 1387, in colorbar
cb = cbar.colorbar_factory(cax, mappable, **kw)
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 1173, in colorbar_factory
cb = Colorbar(cax, mappable, **kwargs)
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 854, in __init__
ColorbarBase.__init__(self, ax, **kw)
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 298, in __init__
self.draw_all()
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 323, in draw_all
self._config_axes(X, Y)
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 409, in _config_axes
self.update_ticks()
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 345, in update_ticks
ticks, ticklabels, offset_string = self._ticker()
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 560, in _ticker
ticks = self._locate(b)
File "/nics/b/home/collins/local_2013_03_12/lib/python2.7/site-packages/matplotlib/colorbar.py", line 808, in _locate
z = np.take(y, i0) + (xn-np.take(b,i0))*dy/db
FloatingPointError: invalid value encountered in divide
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