#----------------------------------------------------------------------------- # Copyright (c) 2012 - 2019, Anaconda, Inc., and Bokeh Contributors. # All rights reserved. # # The full license is in the file LICENSE.txt, distributed with this software. #----------------------------------------------------------------------------- ''' ''' #----------------------------------------------------------------------------- # Boilerplate #----------------------------------------------------------------------------- from __future__ import absolute_import, division, print_function, unicode_literals import logging log = logging.getLogger(__name__) #----------------------------------------------------------------------------- # Imports #----------------------------------------------------------------------------- # Standard library imports # External imports # Bokeh imports from ..core.has_props import abstract from .transforms import Transform #----------------------------------------------------------------------------- # Globals and constants #----------------------------------------------------------------------------- __all__ = ( 'CategoricalScale', 'LinearScale', 'LogScale', 'Scale', ) #----------------------------------------------------------------------------- # General API #----------------------------------------------------------------------------- [docs]@abstract class Scale(Transform): ''' Base class for ``Scale`` models that represent an invertible computation to be carried out on the client-side. JavaScript implementations should implement the following methods: .. code-block:: coffeescript compute: (x) -> # compute the transform of a single value v_compute: (xs) -> # compute the transform of an array of values invert: (xprime) -> # compute the inverse transform of a single value v_invert: (xprimes) -> # compute the inverse transform of an array of values ''' pass [docs]class LinearScale(Scale): ''' ''' pass [docs]class LogScale(Scale): ''' ''' pass [docs]class CategoricalScale(LinearScale): ''' ''' pass #----------------------------------------------------------------------------- # Dev API #----------------------------------------------------------------------------- #----------------------------------------------------------------------------- # Private API #----------------------------------------------------------------------------- #----------------------------------------------------------------------------- # Code #-----------------------------------------------------------------------------