html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    // This sample uses 3rd party Proj4js JavaScript library to transform coordinates

    // See https://docs.anychart.com/Maps/Map_Projections to learn more.

​

    var dataSet = anychart.data.set([

        {points: [-13.03, 131.54, -27.50, 152.85], curvature: -0.3},

        {points: [-27.50, 152.85, -34.23, 150.88], curvature: -0.3},

        {points: [-27.50, 152.85, -19.85, 147.60], curvature: -0.3},

        {points: [-19.85, 147.60, -22.37, 150.15]},

        {points: [-22.37, 150.15, -27.50, 152.85]},

        {points: [-27.50, 152.85, -35.87, 144.00]},

        {points: [-35.87, 144.00, -31.35, 137.6]},

        {points: [-31.35, 137.6, -30.53, 115.70]},

        {points: [-30.53, 115.70, -27.03, 113.96]},

        {points: [-27.03, 113.96, -23.93, 116.26], curvature: -0.3}

    ]);

​

    var map = anychart.map();

    map.geoData(anychart.maps.australia);

​

    var series = map.connector(dataSet);

​

    // Get curvature.

    var curvature = series.curvature();

​

    map.title("Curvature value is " + curvature);

    map.container("container");

    map.draw();

});