anyOf [anyOf [BindCheckbox, BindRadioSelect, BindRange, BindInput, BindDirect], object, anyOf [string, LegendStreamBinding], string]
When set, a selection is populated by input elements (also known as dynamic query widgets) or by interacting with the corresponding legend. Direct manipulation interaction is disabled by default; to re-enable it, set the selection's on property.
Legend bindings are restricted to selections that only specify a single field or encoding.
Query widget binding takes the form of Vega's input element binding definition or can be a mapping between projected field/encodings and binding definitions.
See also: bind documentation.
string
anyOf [string, PointSelectionConfig, IntervalSelectionConfig]
Determines the default event processing and data query for the selection. Vega-Lite currently supports two selection types:
"point" -- to select multiple discrete data values; the first value is selected on click and additional values toggled on shift-click."interval" -- to select a continuous range of data values on drag.anyOf [anyOf [number ∪ string ∪ boolean ∪ null, DateTime], Array<Dict<SelectionInit>>, Dict<SelectionInitInterval>]
Initialize the selection with a mapping between projected channels or field names and initial values.
See also: init documentation.