[yt-users] Re: sudden failure of phaseplot

Hi, I took a liberty of filing the issue: https://github.com/yt-project/yt/issues/2048 I ran a git bisect and found the source of the regression. Cheers, Kacper On 10/4/18 7:44 AM, Nathan Goldbaum wrote:

Hi Stephanie,

No worries, it would still be good to get an issue filed. That’s much more actionable for us than a mailing list thread and makes it less likely we’ll forget about this.

Nathan

On Thu, Oct 4, 2018 at 7:36 AM Stephanie Tonnesen mailto:stonnes@gmail.com> wrote:

Hi Nathan,

I don’t think I was on the stable version before?  But I don’t know what my old version was, unfortunately. I might have done Git stash on it, so may be able to go back and see....not terribly optimistic though....

On Wed, Oct 3, 2018 at 11:41 PM Nathan Goldbaum mailto:nathan12343@gmail.com> wrote:

Hi Stephanie,

Thanks for reporting the regression. If this works on stable but not on dev it’s due to a bug. Can you open an issue on Github? We can follow up there.

Nathan

On Wed, Oct 3, 2018 at 10:28 PM Stephanie Tonnesen mailto:stonnes@gmail.com> wrote:

Hi all,

I updated my yt dev so that I could fix a problem with the clump finder, and now a simple phaseplot script that I have been using is failing. It seems to claim that there is no mass in the cut_region I am using, even though there clearly is (as shown in total_quantity).  

If anyone has some ideas I would really appreciate it!!

Thanks, Stephanie

Here is the script:

import sys import numpy as np import yt

ds = yt.load("/mnt/ceph/users/stonnesen/runs/IsolatedGalaxy/galaxy0030/galaxy0030") logs = {('index','cylindrical_r'):False} logs = {('gas','velocity_z'):False} logs = {('gas','velocity_cylindrical_radius'):False} logs = {('gas','velocity_cylindrical_theta'):False} logs = {('index','z'):False}

ds.index ds.field_info['gas','velocity_z'].take_log = False      ad = ds.all_data()

densegas24 = ad.cut_region("obj['density'] > 1e-24") densegas5e24 = ad.cut_region("obj['density'] > 5e-24") densegas25 = ad.cut_region("obj['density'] > 2e-25")

print (ds.field_list) print (densegas24.quantities.total_quantity(["cell_mass"]))      plot21 = yt.PhasePlot(densegas24,"z","velocity_z",["cell_mass"],weight_field=None) plot21.set_unit('z','kpc') plot21.save('IG_densegas24_zvz_0030')

__________ And then the output seems to claim that there is no positive values of cell_mass, despite the fact that when I do total_quantity I have some mass:

yt : [INFO     ] 2018-10-03 23:18:17,529 Parameters: current_time              = 0.0060000200028298 yt : [INFO     ] 2018-10-03 23:18:17,529 Parameters: domain_dimensions         = [32 32 32] yt : [INFO     ] 2018-10-03 23:18:17,530 Parameters: domain_left_edge          = [ 0.  0.  0.] yt : [INFO     ] 2018-10-03 23:18:17,530 Parameters: domain_right_edge         = [ 1.  1.  1.] yt : [INFO     ] 2018-10-03 23:18:17,531 Parameters: cosmological_simulation   = 0.0 Parsing Hierarchy : 100%|ââââââââââ| 173/173 [00:00<00:00, 9414.27it/s] yt : [INFO     ] 2018-10-03 23:18:17,565 Gathering a field list (this may take a moment.) yt : [WARNING  ] 2018-10-03 23:18:20,923 Profiled field ('gas', 'cell_mass') has no positive values.  Max = 0.000000. yt : [WARNING  ] 2018-10-03 23:18:20,923 Switching to linear colorbar scaling. [('all', 'creation_time'), ('all', 'dynamical_time'), ('all', 'metallicity_fraction'), ('all', 'particle_index'), ('all', 'partic le_mass'), ('all', 'particle_position_x'), ('all', 'particle_position_y'), ('all', 'particle_position_z'), ('all', 'particle_type '), ('all', 'particle_velocity_x'), ('all', 'particle_velocity_y'), ('all', 'particle_velocity_z'), ('enzo', 'Average_creation_ti me'), ('enzo', 'Bx'), ('enzo', 'By'), ('enzo', 'Bz'), ('enzo', 'Cooling_Time'), ('enzo', 'Dark_Matter_Density'), ('enzo', 'Densit y'), ('enzo', 'Electron_Density'), ('enzo', 'Forming_Stellar_Mass_Density'), ('enzo', 'Galaxy1Colour'), ('enzo', 'Galaxy2Colour') , ('enzo', 'HII_Density'), ('enzo', 'HI_Density'), ('enzo', 'HeIII_Density'), ('enzo', 'HeII_Density'), ('enzo', 'HeI_Density'),  ('enzo', 'MBHColour'), ('enzo', 'Metal_Density'), ('enzo', 'PhiField'), ('enzo', 'Phi_pField'), ('enzo', 'SFR_Density'), ('enzo',  'Star_Particle_Density'), ('enzo', 'Temperature'), ('enzo', 'TotalEnergy'), ('enzo', 'gammaHI'), ('enzo', 'kphHI'), ('enzo', 'kp hHeI'), ('enzo', 'kphHeII'), ('enzo', 'x-velocity'), ('enzo', 'y-velocity'), ('enzo', 'z-velocity'), ('io', 'creation_time'), ('i o', 'dynamical_time'), ('io', 'metallicity_fraction'), ('io', 'particle_index'), ('io', 'particle_mass'), ('io', 'particle_positi on_x'), ('io', 'particle_position_y'), ('io', 'particle_position_z'), ('io', 'particle_type'), ('io', 'particle_velocity_x'), ('i o', 'particle_velocity_y'), ('io', 'particle_velocity_z')] 2.02242737915223e+42 g Traceback (most recent call last):   File "yt_phaseplots_densegas2.py", line 46, in <module>     plot21.save('IG_densegas24_zvz_0030')   File "/mnt/home/stonnesen/yt-conda/yt/yt/visualization/plot_container.py", line 93, in newfunc     args[0]._setup_plots()   File "/mnt/home/stonnesen/yt-conda/yt/yt/visualization/profile_plotter.py", line 1077, in _setup_plots     fig, axes, cax)   File "/mnt/home/stonnesen/yt-conda/yt/yt/visualization/profile_plotter.py", line 1559, in __init__     zlim, cmap)   File "/mnt/home/stonnesen/yt-conda/yt/yt/visualization/profile_plotter.py", line 1580, in _init_image     self.cb = self.figure.colorbar(self.image, self.cax)   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/figure.py", line 1844, in colorbar     cb = cbar.colorbar_factory(cax, mappable, **kw)   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 1365, in colorbar_factory     cb = Colorbar(cax, mappable, **kwargs)   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 943, in __init__     ColorbarBase.__init__(self, ax, **kw)   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 326, in __init__     self.draw_all()   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 352, in draw_all     self._config_axes(X, Y)   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 460, in _config_axes     self.update_ticks() File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 377, in update_ticks     ticks, ticklabels, offset_string = self._ticker()   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/colorbar.py", line 620, in _ticker     b = np.array(locator())   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/ticker.py", line 2101, in __call__     return self.tick_values(vmin, vmax)   File "/mnt/xfs1/home/stonnesen/yt-conda/lib/python3.6/site-packages/matplotlib/ticker.py", line 2127, in tick_values     "Data has no positive values, and therefore can not be " ValueError: Data has no positive values, and therefore can not be log-scaled.

-- Dr. Stephanie Tonnesen Associate Research Scientist CCA, Flatiron Institute New York, NY

stonnes@gmail.com mailto:stonnes@gmail.com

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-- -- Dr. Stephanie Tonnesen Associate Research Scientist CCA, Flatiron Institute New York, NY

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