def test_copy():
"""Test that the copy method works for all classes in `declarative.py`."""
# Copies of plot objects
objects = [ImagePlot(), ContourPlot(), FilledContourPlot(), BarbPlot(), PlotObs(),
PlotGeometry()]
for obj in objects:
obj.time = datetime.now()
copied_obj = obj.copy()
assert obj is not copied_obj
assert obj.time == copied_obj.time
# Copies of MapPanel and PanelContainer
obj = MapPanel()
obj.title = 'Sample Text'
copied_obj = obj.copy()
assert obj is not copied_obj
assert obj.title == copied_obj.title
obj = PanelContainer()
obj.size = (10, 10)
copied_obj = obj.copy()
assert obj is not copied_obj
assert obj.size == copied_obj.size
# Copies of plots in MapPanels should not point to same location in memory
obj = MapPanel()
obj.plots = [PlotObs(), PlotGeometry(), BarbPlot(), FilledContourPlot(), ContourPlot(),
ImagePlot()]
copied_obj = obj.copy()
for i in range(len(obj.plots)):
assert obj.plots[i] is not copied_obj.plots[i]
def test_declarative_colorbar_fontsize():
"""Test adjusting the font size of a colorbar."""
data = xr.open_dataset(get_test_data('GFS_test.nc', as_file_obj=False))
cfill = FilledContourPlot()
cfill.data = data
cfill.field = 'Temperature_isobaric'
cfill.level = 300 * units.hPa
cfill.time = datetime(2010, 10, 26, 12)
cfill.contours = list(range(210, 250, 2))
cfill.colormap = 'BuPu'
cfill.colorbar = 'horizontal'
cfill.colorbar_fontsize = 'x-small'
panel = MapPanel()
panel.area = (-124, -72, 20, 53)
panel.projection = 'lcc'
panel.layers = ['coastline', 'borders', 'usstates']
panel.plots = [cfill]
pc = PanelContainer()
pc.size = (8, 8)
pc.panels = [panel]
pc.draw()
return pc.figure
def test_colorfill_no_colorbar(cfeature):
"""Test that we can use ContourFillPlot."""
data = xr.open_dataset(get_test_data('narr_example.nc', as_file_obj=False))
contour = FilledContourPlot()
contour.data = data
contour.level = 700 * units.hPa
contour.field = 'Temperature'
contour.colormap = 'coolwarm'
contour.colorbar = None
panel = MapPanel()
panel.area = (-110, -60, 25, 55)
panel.layers = [cfeature.STATES]
panel.plots = [contour]
pc = PanelContainer()
pc.panel = panel
pc.size = (8, 8)
pc.draw()
return pc.figure