Function ordinalScale

src/traces/parcoords/parcoords.js:107–116

(dimension)

}

function ordinalScale(dimension) {
    if(!dimension.tickvals) return;

    var extent = dimensionExtent(dimension);
    return d3.scale.ordinal()
        .domain(dimension.tickvals)
        .range(dimension.tickvals.map(function(d) {
            return (d - extent[0]) / (extent[1] - extent[0]);
        }));
}

function unitToColorScale(cscale) {
    var colorStops = cscale.map(function(d) { return d[0]; });