gvals

cfplot.gvals(dmin=None, dmax=None, mystep=None, mod=True)[source]
gvals - work out a sensible set of values between two limits
This is an internal routine used for contour levels and axis
labelling and is not generally used by the user.
dmin = None - minimum
dmax = None - maximum
mystep = None - use this step
mod = True - modify data to make use of a multipler