V2 Planning

Technical Improvements

• Refactor / Code review / Improved Modularization / functional programming (5/5)
  • Data flow
  • Chart drawing flow
• Upgrade webcharts to d3 v5? (3/5 + 4/5 for renderers)
• Improved unit testing coverage
  • Add functional tests
  • consider upgrading from mocha for browser tests (puppeteer)
• update the data framework
  • single data object for all files (chart.data.filtered instead of chart.filtered_data)
  • support multiple data sets
  • support multiple data scales
• Formal support for linked charts/tables
• Tweak names and position of callbacks

Features

• Add options for very common callback functionality
  • click marks to make a table
  • clickable legend
• new mark types
• improved controls
  • multiselct
  • sliders for numeric filters
  • better control callbacks