##Attempting to create a simpleLineChart in dc.js##

Supporting information for my Stack Overflow question found here.

Trying to extend the dc.js charting library to include a simpleLinechart option. This chart would preprocess the line with simplify.js (a javascript implementation of the Douglas-Peucker algorithm).

The code I have so far to try to make this simplification is below. I only included the code that is different than the lineChart already in the dc library. Right now the chart is a little cut off at the highest points, I'm looking into how this was fixed in the original chart to see how to implememnt a change.

dc.simpleLineChart = function(parent, chartGroup) {
    var _chart = dc.lineChart(),
        _tolerance = 0.5,
        _highQuality = false,
        _helperDataArray;

    _chart.tolerance = function (_) {
        if (!arguments.length) return _tolerance;
        _tolerance = _;
        return _chart;
    };

    _chart.highQuality = function (_) {
        if (!arguments.length) return _highQuality;
        _highQuality = _;
        return _chart;
    };
    
    function createGrouping(stackedCssClass, group) {
        var g = _chart.chartBodyG().select("g." + stackedCssClass);

        if (g.empty())
            g = _chart.chartBodyG().append("g").attr("class", stackedCssClass);

        var helperDataArray = group.all();

        helperDataArray.forEach(function(d){
            d.x = _chart.x()(_chart.keyAccessor()(d));
            d.y = _chart.y()(_chart.valueAccessor()(d));
        });

        var simplifiedData = simplify(helperDataArray, _tolerance, _highQuality)
        console.log(simplifiedData);
        g.datum(simplifiedData);

        return g;
    }
    
    var lineY = function(d, dataIndex, groupIndex) {
        return _chart.y()(_chart.valueAccessor()(d));
    };