def test_LongitudeFormatter_minutes_seconds_direction_label(test_ticks,
expected):
formatter = LongitudeFormatter(
dms=True, auto_hide=True, direction_label=False)
formatter.set_locs(test_ticks)
result = [formatter(tick) for tick in test_ticks]
assert result == expected
def test_LongitudeFormatter_minutes_seconds(test_ticks, direction_label,
expected):
formatter = LongitudeFormatter(dms=True,
auto_hide=True,
direction_label=direction_label)
formatter.set_locs(test_ticks)
result = [formatter(tick) for tick in test_ticks]
prefix = '' if direction_label else '-'
suffix = 'W' if direction_label else ''
expected = [
f'{prefix}{text[:-1]}{suffix}' if text[-1] == 'W' else text
for text in expected
]
assert result == expected
def basemap_xticks(ax,
ticks,
side='bottom',
add=True,
fontsize=10,
formatter=None):
"""
Calculate and insert xticks on a GeoAxis
Parameters
----------
ax : ``GeoAxes``
GeoAxes that the xticks need to be inserted in
ticks : list
locations of the ticks in PlateCarree coordinates
side : {"top", "bottom"}
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 LongitudeFormatter
"""
# tick_extractor (pick the first coordinate)
te = lambda xy: xy[0]
# line_constructor (create line with fixed x-coordinates and variabel y coordinates)
lc = lambda t, n, b: np.vstack(
(np.zeros(n) + t, np.linspace(b[2] - 1, b[3] + 1, n))).T
xticks, xticklabels = _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 == "top":
ax.xaxis.tick_top()
if isinstance(formatter, type(None)):
formatter = LongitudeFormatter()
formatter.set_locs(xticklabels)
xticklabels_formatted = [formatter(value) for value in xticklabels]
ax.set_xticks(xticks)
ax.set_xticklabels(xticklabels_formatted)
def test_LongitudeFormatter_minutes_seconds(test_ticks, expected):
formatter = LongitudeFormatter(dms=True, auto_hide=True)
formatter.set_locs(test_ticks)
result = [formatter(tick) for tick in test_ticks]
assert result == expected
