Function selectQuantitative

packages/sanddance/src/legend.ts:40–87

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

}

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);
    let lowValue: string;
    let lowOperator: SearchExpressionOperators;
    let highValue: string;
    let highOperator: SearchExpressionOperators;
    const rowText = legend.rows[clickedIndex].label;
    switch (colorBinType) {
        case 'continuous': {
            lowValue = rowText;
            if (clickedIndex < keys.length - 1) {
                highValue = legend.rows[clickedIndex + 1].value;
            }
            break;
        }
        default: {
            if (rowText.indexOf('null') > 0) {
                const ex: SearchExpressionGroup = {
                    expressions: [selectNullOrEmpty(column)],
                };
                return ex;
            }
            const dash = rowText.indexOf('–');  //this is not the common dash character!
            if (dash > 0) {
                //bug in Vega for quantize?
                //lowOperator = '>';
                //highOperator = '<=';
                lowValue = rowText.substr(0, dash);
                highValue = rowText.substr(dash + 1);
            } else {
                if (rowText.indexOf('<') >= 0) {
                    highValue = rowText.substring(2);
                } else {
                    if (rowText.indexOf('≥') >= 0) {
                        lowValue = rowText.substring(2);
                    }
                }
            }
        }
    }
    if (lowValue) lowValue = notNice(lowValue);
    if (highValue) highValue = notNice(highValue);
    if (lowValue === highValue) {
        return { expressions: [selectExact(column, lowValue)] };
    } else {
        return selectBetween(column, lowValue, highValue, lowOperator, highOperator);
    }
}

export function finalizeLegend(colorBinType: ColorBin, colorColumn: Column, legend: VegaDeckGl.types.Legend, language: Language) {
    const rowTexts: string[] = [];