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Passing draw_grid=False is ignored on CoordinateHelper #426
Description
Description
When trying to control how the grid lines are drawn, passing draw_grid=False to the associate coordinate helpers from the axes instance emitted by plot() is ignored. However if .grid is never called, the gridlines are not drawn.
Steps to Reproduce
import astropy.units as u
import astropy.wcs
import numpy as np
from ndcube import NDCube
data = np.random.rand(4, 4, 5)
wcs = astropy.wcs.WCS(naxis=3)
wcs.wcs.ctype = 'WAVE', 'HPLT-TAN', 'HPLN-TAN'
wcs.wcs.cunit = 'Angstrom', 'deg', 'deg'
wcs.wcs.cdelt = 0.2, 0.5, 0.4
wcs.wcs.crpix = 0, 2, 2
wcs.wcs.crval = 10, 0.5, 1
my_cube = NDCube(data, wcs=wcs)
# Calling `grid` with keyword
ax = my_cube[:,:,0].plot()
lat,lon = ax.coords
lat.grid(draw_grid=False)
lon.grid(draw_grid=False)produces
but dropping the lat.grid and lon.grid gives no grid lines at all,
System Details
- ndcube Version: master
- SunPy Version: master
- Astropy Version: 4.2
- Python Version: 3.8
- OS information: Linux
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