Function selectCategorical

packages/sanddance/src/legend.ts:24–38

(column: Column, legend: VegaDeckGl.types.Legend, clickedIndex: number)

}

function selectCategorical(column: Column, legend: VegaDeckGl.types.Legend, clickedIndex: number): SearchExpressionGroup {
    const value = legend.rows[clickedIndex].value;
    if (value === Other) {
        const values: string[] = [];
        for (const i in legend.rows) {
            if (+i !== clickedIndex) {
                values.push(legend.rows[i].value);
            }
        }
        return selectNone(column, values);
    } else {
        //select equal
        return { expressions: [selectExact(column, legend.rows[clickedIndex].value)] };
    }
}

function selectQuantitative(colorBinType: ColorBin, column: Column, legend: VegaDeckGl.types.Legend, clickedIndex: number): SearchExpressionGroup {
    const keys = Object.keys(legend.rows).map(key => +key).sort((a, b) => +a - +b);