Function getColorScale

web_server/public/javascripts/draw_graph.js:206–212

(darkness)

    }

    function getColorScale(darkness) {
        return d3.scaleOrdinal()
            .domain(graph.categoryKeys)
            .range(graph.colors.map(function (c) {
                return d3.hsl(c).darker(darkness).toString();
            }));
    }

    graph.strokeColor = getColorScale(0.7);
    graph.fillColor = getColorScale(-0.1);