html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.bubble();

​

    var series = chart.bubble([

        {x: 1, value: 1.0, size: 2},

        {x: 2, value: 1.6, size: -7},

        {x: 3, value: 1.2, size: -4},

        {x: 4, value: 1.9, size: 3}

    ]);

​

    series.displayNegative(true);

​

    var state = series.normal();

​

    // Set negative fill.

    state.negativeFill(function () {

        return this.sourceColor + ' 0.5';

    });

​

    chart.title('Set state negative fill parameters as a function');

    chart.container('container');

    chart.draw();

});