def basemap_yticks(ax,
ticks,
side='left',
add=True,
fontsize=10,
formatter=None):
"""
Calculate and insert yticks on a GeoAxis
Parameters
----------
ax : ``GeoAxes``
GeoAxes that the yticks need to be inserted in
ticks : list
locations of the ticks in PlateCarree coordinates
side : {"left", "right"}
side of the axes that gets the ticks
add : bool, optional
if both bottom and top are different and both need to be added, one (or both) of the calls to this function
should have 'add' = True
fontsize : float, optional
fontsize of the labels
formatter : matplotlib.tickformatter, optional
The formatter for the labels. The default is the default cartopy LatitudeFormatter
"""
# tick_extractor (pick the second coordinate)
te = lambda xy: xy[1]
# line_constructor (create line with fixed y-coordinates and variabel x coordinates)
lc = lambda t, n, b: np.vstack(
(np.linspace(b[0] - 1, b[1] + 1, n), np.zeros(n) + t)).T
yticks, yticklabels = _basemap_ticks(ax, ticks, side, lc, te)
# Insert and format the ticks
if add:
ax = _clone_geoaxes(ax)
ax.tick_params(axis='both', which='both', length=0, labelsize=fontsize)
if side == "right":
ax.yaxis.tick_right()
if isinstance(formatter, type(None)):
formatter = LatitudeFormatter()
formatter.set_locs(yticklabels)
yticklabels_formatted = [formatter(value) for value in yticklabels]
ax.set_yticks(yticks)
ax.set_yticklabels(yticklabels_formatted)
def test_LatitudeFormatter_minutes_seconds(test_ticks, expected):
formatter = LatitudeFormatter(dms=True, auto_hide=True)
formatter.set_locs(test_ticks)
result = [formatter(tick) for tick in test_ticks]
assert result == expected
def test_LatitudeFormatter_minutes_seconds(test_ticks, expected):
formatter = LatitudeFormatter(dms=True, auto_hide=True)
formatter.set_locs(test_ticks)
result = [formatter(tick) for tick in test_ticks]
assert result == expected
