html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var dataSet = anychart.data.set([

        {x: "Physical", value: 125},

        {x: "Data Link", value: 125},

        {x: "Network", value: 125},

        {x: "Transport", value: 125},

        {x: "Session", value: 125},

        {x: "Presentation", value: 125},

        {x: "Application", value: 290}

    ]);

​

    var chart = anychart.pyramid(dataSet);

​

    // Set selectStroke using function.

    chart.selectStroke(function () {

        var thickness = this.index + 3;

        return thickness.toString() + " #F44336";

    });

​

    chart.title("Set chart selectStroke parameter as a function.");

    chart.container("container");

    chart.draw();

});