Another bug plotting geographic data with 2D longitude/latitude

[lukelbd]

This file with 2D longitude/latitude arrays causes a weird streaking issue when you do a pcolormesh plot.

import os
import xarray as xr
file = os.path.expanduser('~/Downloads/data.for.luke.nc')
data = xr.open_dataset(file)

# proplot
levels = plot.arange(0, 0.012, 0.001)
import proplot as plot
f, ax = plot.subplots(proj='cyl', width=5)
ax.pcolormesh(data.ULONG, co2.ULAT, data.PH_ALT_CO2, levels=levels, cmap='Fire', colorbar='b')
ax.format(facecolor='gray')

# pyplot
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
f, ax = plt.subplots(figsize=(5,3.5), subplot_kw={'projection':ccrs.PlateCarree()})
c = ax.pcolormesh(data.ULONG, co2.ULAT, data.PH_ALT_CO2, # levels=levels,
 vmin=min(levels), vmax=max(levels),
 cmap='Fire', transform=ccrs.PlateCarree())
f.colorbar(c, ax=ax, orientation='horizontal')
ax.patch.set_facecolor('gray')
f.subplots_adjust(0.02, 0.02, 0.98, 0.98)

[lukelbd]

Fixed by #55. It has to do with how I am currently implementing the wrappers. Interestingly, for some reason I couldn't implement the gray background with the pyplot API.

import os
import xarray as xr
file = os.path.expanduser('~/Downloads/data.for.luke.nc')
data = xr.open_dataset(file)

# proplot
import proplot as plot
levels = plot.arange(0, 0.012, 0.001)
f, ax = plot.subplots(proj='cyl', width=5)
ax.pcolormesh(data.ULONG, data.ULAT, data.PH_ALT_CO2,
 levels=levels, cmap='Fire', colorbar='b')
ax.format(facecolor='gray', suptitle='Proplot API')
f.save('~/Downloads/example.proplot.png')

# pyplot
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
f, ax = plt.subplots(figsize=(5,3.5), subplot_kw={'projection':ccrs.PlateCarree()})
c = ax.pcolormesh(data.ULONG, data.ULAT, data.PH_ALT_CO2, # levels=levels,
 vmin=min(levels), vmax=max(levels),
 cmap='Fire', transform=ccrs.PlateCarree())
f.colorbar(c, ax=ax, orientation='horizontal')
ax.patch.set_facecolor('gray')
ax.patch.set_alpha(1)
f.subplots_adjust(0.05, 0.02, 0.95, 0.98)
f.suptitle('Pyplot API')
f.savefig(os.path.expanduser('~/Downloads/example.pyplot.png'))