Function facetColumnHeaderFooter

docs/app/js/sanddance-app.js:3668–3697

(data, sizeSignals, index)

    };
}
function facetColumnHeaderFooter(data, sizeSignals, index) {
    const colFn = (ySignal)=>{
        return {
            type: "group",
            from: {
                data
            },
            encode: {
                update: {
                    x: {
                        signal: `(${index}) * (${sizeSignals.layoutWidth} + ${(0, _constants.SignalNames).FacetPaddingLeft}) + ${(0, _constants.SignalNames).FacetPaddingLeft} + ${(0, _constants.SignalNames).PlotOffsetLeft}`
                    },
                    y: {
                        signal: ySignal
                    },
                    width: {
                        signal: sizeSignals.layoutWidth
                    }
                }
            }
        };
    };
    //create group marks based on data sequences
    const header = colFn(`${(0, _constants.SignalNames).PlotOffsetTop} / 2`);
    const footer = colFn(`${(0, _constants.SignalNames).PlotOffsetTop} + ${(0, _constants.SignalNames).PlotHeightOut}`);
    return {
        header,
        footer
    };
}
function createSequence(dataName, countSignal) {
    return {
        name: dataName,