I am trying to create a 3d histogram following the solution suggested here, which is based on [this matplotlib demo](Create 3D histogram of 2D data). In the finished plot however, the zorder of the ...

I drew a 3D bar graph in python3 using ax.bar3d and then saved the image to pdf under bbox_inches='tight' using plt.savefig, but the Z-axis label was missing in the pdf. Note that everything worked ...