Adding labels to vertices removes axis labels

[MarkWieczorek]

In many fields, one usually labels to the vertices of a ternary diagram. Would it be possible to add this as an option, in order to make a plot similar to this (which is in the Readme, but the axes are labeled incorrectly: X should be the right corner, Y should be the top, and Z should be the left corner):

https://github.com/marcharper/python-ternary/blob/master/readme_images/various_lines.png

[MarkWieczorek]

Looking through the package, I found the options to add labels to the vertices. However, when adding both vertice and axis labels, some of these will not be shown

For instance

ax.left_axis_label("vol % Fe", fontsize=8, offset=0.12)
ax.left_corner_label('Fe', offset=-0.03)

ax.bottom_axis_label("vol % Inclusions", fontsize=8)
ax.right_corner_label('Inclusions', offset=-0.03)

ax.right_axis_label("vol % void space", fontsize=8, offset=0.12)
ax.top_corner_label('Porosity')

will not plot the bottom axis label or right vertice label.

If I rearrange the order somewhat

ax.left_axis_label("vol % Fe", fontsize=8, offset=0.12)
ax.bottom_axis_label("vol % Inclusions", fontsize=8)
ax.right_axis_label("vol % void space", fontsize=8, offset=0.12)

ax.left_corner_label('Fe', offset=-0.03)
ax.right_corner_label('Inclusions', offset=-0.03)
ax.top_corner_label('Porosity')

Then this time the bottom and right axis labels are not plotted.

I have saved the files a a pdf and opened this in an editor to make sure that the text is not being overwritten by white characters.

I am using macOS, python3 and matplotlib 3.0.2.

[marcharper]

I think that I've fixed this. Can you try the latest master branch and report back if you still have issues? If your issue is fixed I'll push a new version.

[MarkWieczorek]

Thanks, it seems to work.

I guess my only comment at this point is that it is necessary to use ax.show() to get the labels to show when plotting in interactive mode.

[marcharper]

Did the redraw issue occur in interactive mode with jupyter or in a matplotlib window (or both)?

[MarkWieczorek]

It was in a matplotlib window. In a jupyter notebook the labels draw normally and I don't need to specify ax.show()