Use of lambert conformal projection leads to axes limit error
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@sadielbartholomew is already working on this.
Since Oct 2, 2024.
bug
plotting
- Dominant language
- Python
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Description
Recently when attempting a contour plot using the lambert conformal 'lcc' map projection, I see a ValueError: Axis limits cannot be NaN or Inf error, though previously we have not seen this sort of issue. I've tried upgrading cartopy and matplotlib but the error still emerges, so needs investigating in case it is a cf-plot issue.
MRE with environment
>>> import cfplot as cfp
>>> import cf
>>>
>> cf.environment(paths=False)
Platform: Linux-6.5.13-7-MANJARO-x86_64-with-glibc2.40
HDF5 library: 1.14.2
netcdf library: 4.9.2
udunits2 library: /home/slb93/miniconda3/envs/cf-env-312/lib/libudunits2.so.0
esmpy/ESMF: 8.4.2
Python: 3.12.0
dask: 2024.7.1
netCDF4: 1.6.5
psutil: 5.9.5
packaging: 23.2
numpy: 1.26.4
scipy: 1.14.0
matplotlib: 3.9.2
cftime: 1.6.2
cfunits: 3.3.7
cfplot: 3.3.0
cfdm: 1.11.1.0
cf: 3.16.2
>>>
>>> PATH = "~/git-repos/cf-plot/cfplot/test/cfplot_data"
>>> f = cf.read(f"{PATH}/ggap.nc")[0]
>>> cfp.mapset(proj="lcc")
>>> cfp.con(f.subspace(pressure=850))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/slb93/git-repos/cf-plot/cfplot/cfplot.py", line 3665, in con
_set_map()
File "/home/slb93/git-repos/cf-plot/cfplot/cfplot.py", line 2377, in _set_map
mymap.set_extent(
File "/home/slb93/miniconda3/envs/cf-env-312/lib/python3.12/site-packages/cartopy/mpl/geoaxes.py", line 862, in set_extent
self.set_xlim([x1, x2])
File "/home/slb93/miniconda3/envs/cf-env-312/lib/python3.12/site-packages/matplotlib/axes/_base.py", line 3739, in set_xlim
return self.xaxis._set_lim(left, right, emit=emit, auto=auto)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/slb93/miniconda3/envs/cf-env-312/lib/python3.12/site-packages/matplotlib/axis.py", line 1236, in _set_lim
v0 = self.axes._validate_converted_limits(v0, self.convert_units)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/slb93/miniconda3/envs/cf-env-312/lib/python3.12/site-packages/matplotlib/axes/_base.py", line 3660, in _validate_converted_limits
raise ValueError("Axis limits cannot be NaN or Inf")
ValueError: Axis limits cannot be NaN or Inf
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