When subplotting, all lines are plotted only in the last image plot

[Robotatron]

Very basic example code, I am plotting images for each axis. Additionally, for each axis, I am plotting some lines with coco.plot.showAnns(anns) which in turn calls several pplt.pyplot.plot() functions

For some reason, instead of having lines plotted in each image, all them are plotted only in the last one?

[zxdawn]

You can set all axis without gridline and then specify the last one you want:

import proplot as pplt

fig, axs = pplt.subplots(nrows=2, ncols=2)

axs.format(grid=False)
axs[-1].format(grid=True)

[Robotatron]

@zxdawn My question was not about gridlines. The problem I am having is that the plot from coco.plot.showAnns(anns) which is inside the loop it plotted only in the last image. It should have plotted on every image, instead all plots are only in the last image.

[Robotatron]

delete

[Robotatron]

Better example. I would expect the colored horizontal line to be plotted in every image. Instead all 4 are plotted only in the last image.

Expectation:

[Robotatron]

Figured it out after watching https://www.youtube.com/watch?v=6gdNUDs6QPc Basically, plot_line() has to be provided an instance of the Axes, then it works fine!