holoviz/holoviews v1.11.0

Version 1.11.0

on GitHub

This is a major release containing a large number of features and API improvements. Specifically this release was devoted to improving the general usability and accessibility of the HoloViews API and deprecating parts of the API in anticipation for the 2.0 release. To enable deprecation warnings for these deprecations set:

hv.config.future_deprecations = True

The largest updates to the API relate to the options system which is now more consistent, has better validation and better supports notebook users without requiring IPython magics. The new dim transform generalizes the mapping from data dimensions to visual dimensions, greatly increasing the expressive power of the options system. Please consult the updated user guides for more information.

Special thanks for the contributions by Andrew Huang (@ahuang11), Julia Signell (@jsignell), Jon Mease (@jonmmease), and Zachary Barry (@zbarry).

Features:

• Generalized support for style mapping using dim transforms (#2152)
• Added alternative to opts magic with tab-completion (#3173)
• Added support for Polygons with holes and improved contours operation (#3092)
• Added support for Links to express complex interactivity in JS (#2832)
• Plotly improvements including support for plotly 3.0 (#3194), improved support for containers (#3255) and support for more elements (#3256)
• Support for automatically padding plots using new padding option (#2293)
• Added xlim/ylim plot options to simplify setting axis ranges (#2293)
• Added xlabel/ylabel plot options to simplify overriding axis labels (#2833)
• Added xformatter/yformatter plot options to easily override tick formatter (#3042)
• Added active_tools options to allow defining tools to activate on bokeh plot initialization (#3251)
• Added FreehandDraw stream to allow freehand drawing on bokeh plots (#2937)
• Added support for cftime types for dates which are not supported by standard datetimes and calendars (#2728)
• Added top-level save and render functions to simplify exporting plots (#3134)
• Added support for updating Bokeh bokeh legends (#3139)
• Added support for indicating directed graphs with arrows (#2521)

Enhancements:

• Improved import times (#3055)
• Adopted Google style docstring and documented most core methods and classes (#3128

Bug fixes:

• GIF rendering fixed under Windows (#3151)
• Fixes for hover on Path elements in bokeh (#2472, #2872)
• Fixes for handling TriMesh value dimensions on rasterization (#3050)

Deprecations:

• finalize_hooks renamed to hooks (#3134)
• All *_index and related options are now deprecated including color_index, size_index, scaling_method, scaling_factor, size_fn (#2152)
• Bars group_index, category_index and stack_index are deprecated in favor of stacked option
  (#2828)
• Iris interface was moved to GeoViews (#3054)
• Top-level namespace was cleaned up (#2224)
• ElementOperation, Layout.display and mdims argument to .to now fully removed (#3128)
• Element.mapping, ItemTable.values, Element.table, HoloMap.split_overlays, ViewableTree.from_values, ViewableTree.regroup and Element.collapse_data methods now marked for deprecation (#3128)