pysteps.visualization.utils.get_basemap_axis¶

pysteps.visualization.utils.get_basemap_axis(extent, geodata=None, ax=None, map_kwargs=None)¶

Safely get a basemap axis. If ax is None, the current axis is returned.

If geodata is not None and ax is not a cartopy axis already, it creates a basemap axis and return it.

Parameters

extent: tuple

Four-element tuple specifying the extent of the domain according to (lower left x, upper right x, lower left y, upper right y).

geodata:

geodata: dictionary or None Optional dictionary containing geographical information about the field.

If geodata is not None, it must contain the following key-value pairs:

Key	Value
projection	PROJ.4-compatible projection definition
x1	x-coordinate of the lower-left corner of the data raster
y1	y-coordinate of the lower-left corner of the data raster
x2	x-coordinate of the upper-right corner of the data raster
y2	y-coordinate of the upper-right corner of the data raster
yorigin	a string specifying the location of the first element in the data raster w.r.t. y-axis: ‘upper’ = upper border, ‘lower’ = lower border

ax: axis object

Optional axis object to use for plotting.

map_kwargs: dict

Returns