Utility functions

Module util provides a set of useful helpers which are currently not attributable to the other modules

aspect	Compute an aspect ratio that equalizes physical axis lengths.
from_to	Return a list of timesteps from <tstart> to <tend> of length <tdelta>
filter_window_polar	Apply a filter of an approximated square window of half size fsize on a given polar image img.
filter_window_cartesian	Apply a filter of square window size fsize on a given cartesian image img.
find_bbox_indices	Find min/max-indices for NxMx2 array coords using bbox-values.
get_raster_origin	Return raster origin
half_power_radius	Half-power radius.
calculate_polynomial	Calculate Polynomial
core_dims	Determine core dimensions for use with xarray.apply_ufunc.
crop	Crop a 2D DataArray to the spatial extent of another DataArray, optionally extending the crop by a given number of grid cells.
derivate	Calculates derivative of data using window of length winlen.
despeckle	Remove floating pixels in between NaNs in a multidimensional array.
import_optional	Allowing for lazy loading of optional wradlib modules or dependencies.
cross_section_ppi	Cut a cross-section from PPI volume scans
UtilMethods	wradlib xarray SubAccessor methods for Util.