helpers

a collection of useful helper-functions.

Functions

cmap_alpha(cmap, alpha[, interpolate, name])	add transparency to an existing colormap
pairwise(iterable[, pairs])	a generator to return n consecutive values from an iterable.
progressbar(it[, prefix, size, file])	A (very) simple progressbar generator.
register_modules(*names[, raise_exception])	Lazy-loading for optional dependencies.

Classes

BlitManager(m)	Manager used to schedule draw events, cache backgrounds, etc.
LayoutEditor(m[, modifier, cb_modifier])	Class to handle interactive re-positioning of figure-objects.
SearchTree(m)	Class to perform fast nearest-neighbour queries.