Visualisation ax,cb = mgr.showResult() undersizes plot and oversizes colorbar, changing aspect not effective

[sarahgarre]

[halbmy]

You should better write how you achieved this result, I guess:

ax, cb = *show*()  # e.g. pg.show(), mgr.showResult() etc.
ax.set_aspect(3.0)

which is indeed a bug, rather one of matplotlib (e.g. see https://stackoverflow.com/questions/63118710/how-to-set-matplotlib-colorbar-height-for-image-with-aspect-ratio-1)

If you don't care about the actual aspect, but want to fill the figure, you can use ax.set_aspect('auto'), but if you want to use a specific aspect, the figure is ugly unless you adjust the cb aspect too (which is 'auto' by default) by, e.g., cb.ax.set_aspect(0.5).

We should better (re)include aspect as a keyword argument in pg.show() and change the aspect of the colour scale accordingly.