A Dash of Bokeh

Transcript

1. Bryan Van de Ven @bigreddot Oct 2018 A Dash of Bokeh
2. No JavaScript Bokeh ? https://bokeh.pydata.org/en/latest Interactive visualization, widgets, and tools For the browser, with or without a server Versatile and high-level graphics Streaming, dynamic, large data What
3. No JavaScript No JavaScript Bokeh ? https://bokeh.pydata.org/en/latest Interactive visualization, widgets, and tools For the browser, with or without a server Versatile and high-level graphics Streaming, dynamic, large data What
4. Simple (to write) Apps for Data Science What
5. Concentrate on your work Why
6. Concentrate on your work Mostly or completely written in Python, little HTML or CSS coding Why
7. Concentrate on your work Mostly or completely written in Python, little HTML or CSS coding Simple python scripts, no special classes of frameworks Why
8. Concentrate on your work Mostly or completely written in Python, little HTML or CSS coding Simple python scripts, no special classes of frameworks Useful for exploratory analysis or sharing and publishing Why
9. Concentrate on your work Mostly or completely written in Python, little HTML or CSS coding Simple python scripts, no special classes of frameworks Useful for exploratory analysis or sharing and publishing Automatically mirrors and synchronizes Python and browser state Why
10. Concentrate on your work Mostly or completely written in Python, little HTML or CSS coding Connect the full PyData stack to interactive web apps Simple python scripts, no special classes of frameworks Useful for exploratory analysis or sharing and publishing Automatically mirrors and synchronizes Python and browser state Why
11. Users Gonna Use Who
12. KeplerGO/lightkurve Who
13. KeplerGO/lightkurve Who
14. Bokeh Today
15. Circa June 2014 Who
16. Circa Yesterday 2018 Who
17. Makes the Dream Work Damian Luke Bryan Philipp Mateusz Havoc Jean-Luc Peter Maggie Sarah Brendan Julia Who
18. Makes the Dream Work New faces too: !!! Damian Luke Bryan Philipp Mateusz Havoc Jean-Luc Peter Maggie Sarah Brendan Julia Who
19. Makes the Dream Work Special Recent Thanks: Karel Van de Plassche, Eugene Pakhomov, Anthony Doucuoliagos. New faces too: !!! Damian Luke Bryan Philipp Mateusz Havoc Jean-Luc Peter Maggie Sarah Brendan Julia Who
20. Makes the Dream Work Special Recent Thanks: Karel Van de Plassche, Eugene Pakhomov, Anthony Doucuoliagos. New faces too: !!! Damian Luke Bryan Philipp Mateusz Havoc Jean-Luc Peter Maggie Sarah Brendan Julia Who
21. one point oh !!!
22. one point oh Support for MultiPolygons with holes !!!
23. one point oh Support for MultiPolygons with holes Several fixes and improvements to DataTable !!!
24. one point oh Support for MultiPolygons with holes Several fixes and improvements to DataTable !!! CustomAction for user-defined Toolbar buttons
25. one point oh Support for MultiPolygons with holes Several fixes and improvements to DataTable Plain JSON export/embed functions !!! CustomAction for user-defined Toolbar buttons
26. one point oh Support for MultiPolygons with holes Several fixes and improvements to DataTable Plain JSON export/embed functions !!! CustomAction for user-defined Toolbar buttons Callback to allow AjaxDataSource to adapt JSON responses
27. one point oh Support for MultiPolygons with holes Several fixes and improvements to DataTable Plain JSON export/embed functions Scatter glyph for parameterizable marker type !!! CustomAction for user-defined Toolbar buttons Callback to allow AjaxDataSource to adapt JSON responses
28. one point oh Support for MultiPolygons with holes Reuse webdrivers for faster PNG/SVG export by default Several fixes and improvements to DataTable Plain JSON export/embed functions Scatter glyph for parameterizable marker type !!! CustomAction for user-defined Toolbar buttons Callback to allow AjaxDataSource to adapt JSON responses
29. one point oh Support for MultiPolygons with holes Reuse webdrivers for faster PNG/SVG export by default Several fixes and improvements to DataTable Plain JSON export/embed functions Scatter glyph for parameterizable marker type !!! CustomAction for user-defined Toolbar buttons Callback to allow AjaxDataSource to adapt JSON responses Faster import times
30. Basic Principles
31. Building Blocks How
32. Building Blocks How
33. Building Blocks How
34. Not just for Python http://hafen.github.io/rbokeh Plays well with R ecosystem: HTMLwidget, RMarkdown…
35. Map Visual Properties To Data Columns How Pick what graphical primitives to use, provide the data, and specify how to map visual properties to data fields. Bokeh will take care of the rest.
36. Streaming Data Two data source methods: .stream to append data incrementally to column ends .patch for random access updates anywhere How
37. Styling How Simple YAML or JSON format Useful for a consistent look across plots Any Bokeh property can be targeted
38. Some User Contributed Styles How Caliber Minimal Dark Monokai Dark
39. Built-in Layouts How Bokeh offers "rows and columns" layouts
40. Built-in Layouts How
41. Built-in Layouts How
42. Built-in Layouts How Bokeh objects can be responsive
43. Built-in Layouts How Bokeh objects can be responsive Some problems and known issues
44. Built-in Layouts How Bokeh objects can be responsive Improved, simpler layout system for 1.1 Some problems and known issues
45. Custom Templates How Import embed function Load BokehJS resources Embed Bokeh objects Boilerplate script
46. Custom Templates How
47. Dask UI Uses CSS Grid How http://examples.dask.org
48. Custom Extensions http://bokeh.pydata.org/en/latest/docs/user_guide/extensions.html Python class interface JavaScript implementation Normal usage How
49. Custom Extensions Add capability for… How
50. Custom Extensions Add capability for… Wrapping different widgets How
51. Custom Extensions Add capability for… Wrapping different widgets Adapting 3D JavaScript libraries How
52. Custom Extensions Add capability for… Wrapping different widgets Adapting 3D JavaScript libraries Adding LaTeX labels How
53. Custom Extensions Add capability for… Wrapping different widgets Adapting 3D JavaScript libraries Adding LaTeX labels Community doesn’t have to wait! How
54. Bokeh Server Applications How Bokeh Server automatically keeps Python and JavaScript in sync
55. Bokeh Server Applications How Python callbacks can execute on property changes (and JS will react too)
56. Bokeh Server Applications How Document level callbacks can perform server-driven updates
57. An Example
58. Goal Example of streaming API Connects to PyData tools Custom layout for nice look Demonstrates:
59. Goal Example of streaming API Connects to PyData tools Custom layout for nice look Demonstrates:
60. The Python Bits
61. The Template Bits
62. Live Demo
63. Final Thoughts
64. Resources • GitHub: https://github.com/Bokeh/bokeh • Documentation: http://bokeh.pydata.org/en/latest • Example Apps: https://demo.bokehplots.com • Tutorials: https://mybinder.org/v2/gh/bokeh/bokeh-notebooks/master?filepath=tutorial%2F00%20-%20Introduction%20and%20Setup.ipynb • Mailing List: https://groups.google.com/a/continuum.io/forum/#!forum/bokeh • Gitter Chat: https://gitter.im/bokeh/bokeh Do
65. Call to Action Do
66. Call to Action Install Bokeh and provide feedback • BSD license for everything (JS, Python, server) • https://github.com/Bokeh/bokeh Do
67. Call to Action Install Bokeh and provide feedback • BSD license for everything (JS, Python, server) • https://github.com/Bokeh/bokeh Donate to Bokeh via NumFOCUS • https://www.flipcause.com/secure/cause_pdetails/MzE5NjE= Do
68. Call to Action Install Bokeh and provide feedback • BSD license for everything (JS, Python, server) • https://github.com/Bokeh/bokeh Engage companies for custom work • Code integration, analytical and visualization expertise • Contact us to be put in touch bokehplots@gmail.com Donate to Bokeh via NumFOCUS • https://www.flipcause.com/secure/cause_pdetails/MzE5NjE= Do