Map projection gridlines are layered much too high

[bradyrx]

For some reason, it seems like the zorder layer of the grid lines added to a map projection is really high. I.e, they are prioritized to be layered on top of most other things. This is being prioritized here I think:

https://github.com/lukelbd/proplot/blob/7132b407d5ed9b777f28f3a4c15564321f87ec95/proplot/axes.py#L2952

Perhaps there can be an rc config option called proplot.rc['geogrid.zorder'] or something like that. Here's what happens currently with the default:

import proplot as plot
plot.rc['land.color'] = '#d3d3d3'

f, ax = plot.subplots(proj='spstere')

ax.text(0, 0, 'test', color='k')

ax.format(land=True, boundinglat=-40)

And how I have to hack it so my continents are above my grid lines and my text doesn't get contaminated:

import cartopy.feature as cfeature
f, ax = plot.subplots(proj='spstere')

ax.add_feature(cfeature.LAND, color='#d3d3d3', zorder=5)
ax.text(0, 0, 'test', color='k', zorder=6)

ax.format(boundinglat=-40)

[bradyrx]

This could be an aesthetics preference between an oceanographer and atmospheric scientist :) Maybe there's a smooth global config to set the priority of layering. E.g. proplot.rc.geolayering and you set preference of gridlines vs. land/coastline stuff. And text always goes above those.

[lukelbd]

Definitely will address this.

There's an axes.axisbelow rcParam that controls whether ticks/gridlines appear below everything, above everything, or above lines but below patches. I think geogrid gridlines should support this setting, and as for geographic elements, can add land.axisbelow, coast.axisbelow, etc. settings (or maybe just land.below, coast.below). And I think instead of 'lines' as the intermediate option, I will use 'grid' -- so True is below everything, 'grid' is above everything but below gridlines, and False is above everything (the default).