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Altair v2.1.0 Release Notes

Release Date: 2018-06-06 // almost 6 years ago

  • ✨ Enhancements

    • ➕ add a scale_factor argument to chart.save() to allow the size/resolution of saved figures to be adjusted. (#918)

    • ➕ add an add_selection() method to add selections to charts (#832)

    • ➕ add chart.serve() and chart.display() methods for more flexibility in displaying charts (#831)

    • 👍 allow multiple fields to be passed to encodings such as tooltip and detail (#830)

    • 📜 make timeUnit specifications more succinct, by parsing them in a manner similar to aggregates (#866)

    • make to_json() and to_csv() have deterministic filenames, so in json mode a single datasets will lead to a single on-disk serialization (#862)

    💥 Breaking Changes

    • 👉 make data the first argument for all compound chart types to match the semantics of alt.Chart (this includes alt.FacetChart, alt.LayerChart, alt.RepeatChart, alt.VConcatChart, and alt.HConcatChart) (#895).

    • ⚡️ update vega-lite to version 2.4.3 (#836)

      • Only API change is internal: alt.MarkProperties is now alt.MarkConfig

    🚧 Maintenance

    • ⚡️ update vega to v3.3 & vega-embed to v3.11 in html output & colab renderer (#838)