DefinitelyTyped/nvd3/test/scatterChart.ts

namespace nvd3_test_scatterChart {
    // register our custom symbols to nvd3
    // make sure your path is valid given any size because size scales if the chart scales.
    nv.utils.symbolMap.set('thin-x', function (size) {
        size = Math.sqrt(size);
        return 'M' + (-size / 2) + ',' + (-size / 2) +
            'l' + size + ',' + size +
            'm0,' + -(size) +
            'l' + (-size) + ',' + size;
    });

    // create the chart
    var chart;
    nv.addGraph(function () {
        chart = nv.models.scatterChart()
            .showDistX(true)
            .showDistY(true)
            .useVoronoi(true)
            .color(d3.scale.category10().range())
            .duration(300)
            ;
        chart.dispatch.on('renderEnd', function () {
            console.log('render complete');
        });

        chart.xAxis.tickFormat(d3.format('.02f'));
        chart.yAxis.tickFormat(d3.format('.02f'));

        d3.select('#test1 svg')
            .datum(randomData(4, 40))
            .call(chart);

        nv.utils.windowResize(chart.update);

        chart.dispatch.on('stateChange', function (e) { JSON.stringify(e); });
        return chart;
    });


    function randomData(groups, points) { //# groups,# points per group
        // smiley and thin-x are our custom symbols!
        var data = [],
            shapes = ['thin-x', 'circle', 'cross', 'triangle-up', 'triangle-down', 'diamond', 'square'],
            random = d3.random.normal();

        for (i = 0; i < groups; i++) {
            data.push({
                key: 'Group ' + i,
                values: []
            });

            for (var j = 0; j < points; j++) {
                data[i].values.push({
                    x: random(),
                    y: random(),
                    size: Math.round(Math.random() * 100) / 100,
                    shape: shapes[j % shapes.length]
                });
            }
        }

        return data;
    }

}