gvals

cfplot.gvals(dmin=None, dmax=None, tight=0, mystep=None, mod=1)

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

tight=0 - return values tight to input min and max

mystep=None - use this step

mod=1 - modify data to make use of a multipler