Portrait plot issues

[durack1]

It seems something in vcs=2.8 has changed so that the following error occurs:

>>> cdat_info.version()
['', 'v2.8']
(PMP) bash-4.1$ python portrait-3obs.py
/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/numpy/ma/core.py:3337: MaskedArrayFutureWarning: setting an item on a masked array which has a shared mask will not copy the mask and also change the original mask array in the future.
Check the NumPy 1.11 release notes for more information.
  self.__setitem__(slice(i, j), value)
Traceback (most recent call last):
  File "portrait-3obs.py", line 131, in <module>
    P.plot(out1_rel,x=x,multiple=1.3,bg=1)
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/pcmdi_metrics/graphics/portraits.py", line 983, in plot
    x.plot(MV2.ravel(data), M, template, meshfill, bg=bg)
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/vcs/Canvas.py", line 2564, in plot
    a = self.__plot(arglist, keyargs)
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/vcs/Canvas.py", line 3893, in __plot
    returned_kargs = self.backend.plot(*arglist, **keyargs)
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/vcs/VTKPlots.py", line 608, in plot
    vtk_backend_grid, vtk_backend_geo, **kargs))
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/vcs/vcsvtk/pipeline2d.py", line 285, in plot
    self._min = self._data1.min()
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/numpy/ma/core.py", line 5472, in min
    axis=axis, out=out, **kwargs).view(type(self))
  File "/home/p1d/anaconda2/envs/PMP/lib/python2.7/site-packages/numpy/core/_methods.py", line 29, in _amin
    return umr_minimum(a, axis, None, out, keepdims)
ValueError: zero-size array to reduction operation minimum which has no identity

@doutriaux1 @danlipsa is this related to #117 and #119 do you think?

[durack1]

@doutriaux1 what is the over ride for installing vcs-nox rather than the default? I was using:

conda create -n PMP -c conda-forge -c uvcdat -c pcmdi pcmdi_metrics

[durack1]

@doutriaux1 self help:

conda create -n PMP -c conda-forge -c uvcdat -c pcmdi pcmdi_metrics-nox

I had forgotten that @zshaheen had sorted us out nightlies.. @zshaheen how hard would it be to push a -nox for the v1.1.1?

[zshaheen]

@durack1 It's not too bad, I get to it tomorrow.

[durack1]

Excellent thanks! Some folks at GFDL can't use the non-nox version and our test cases for them were all built pre-CDP.. quickest path forward is a v1.1.1-nox..

[durack1]

@doutriaux1 I have just tested this against the PMP-v1.1.1-nox that @zshaheen generated for me and I am still getting the issue, so something has changed in vcs:

(PMP-nox) bash-4.1$ python portrait-3obs.py
/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/numpy/ma/core.py:3337: MaskedArrayFutureWarning: setting an item on a masked array which has a shared mask will not copy the mask and also change the original mask array in the future.
Check the NumPy 1.11 release notes for more information.
  self.__setitem__(slice(i, j), value)
Traceback (most recent call last):
  File "portrait-3obs.py", line 131, in <module>
    P.plot(out1_rel,x=x,multiple=1.3)
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/pcmdi_metrics/graphics/portraits.py", line 983, in plot
    x.plot(MV2.ravel(data), M, template, meshfill, bg=bg)
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/vcs/Canvas.py", line 2564, in plot
    a = self.__plot(arglist, keyargs)
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/vcs/Canvas.py", line 3893, in __plot
    returned_kargs = self.backend.plot(*arglist, **keyargs)
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/vcs/VTKPlots.py", line 608, in plot
    vtk_backend_grid, vtk_backend_geo, **kargs))
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/vcs/vcsvtk/pipeline2d.py", line 285, in plot
    self._min = self._data1.min()
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/numpy/ma/core.py", line 5472, in min
    axis=axis, out=out, **kwargs).view(type(self))
  File "/home/p1d/anaconda2/envs/PMP-nox/lib/python2.7/site-packages/numpy/core/_methods.py", line 29, in _amin
    return umr_minimum(a, axis, None, out, keepdims)
ValueError: zero-size array to reduction operation minimum which has no identity

Is this a bug, or have the vcs options changed? The offending code is:

P.plot(out1_rel,x=x,multiple=1.3)

[durack1]

@doutriaux1 FYI, with missing (no data) I am getting the following error:

Warning: In /export/doutriaux1/anaconda2/conda-bld/vtk-cdat_1479229648549/work/Filters/Geometry/vtkDataSetSurfaceFilter.cxx, line 166
vtkDataSetSurfaceFilter (0x3043b80): Number of cells is zero, no data to process.

[doutriaux1]

@durack1 i gthought we established you were sending it an array shaped (10,0) hence the bug. Is there anything else? Also portraits plot are not officially in vcs as far as i remember so it really should go to pmp issues

[durack1]

@doutriaux1 I think you're right, and it's most likely a user (or was there another definition that we decided upon) error, the only valid post above is #146 (comment) which seems a bit vague and includes the conda-bld path, so is useless for an end user

[durack1]

@doutriaux1 @zshaheen closing this and will open another issue about the debug info