html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

​

    // This sample uses 3rd party proj4 component

    // that makes it possible to set coordinates

    // for the points and labels on the map and

    // required for custom projections and grid labels formatting.

    // See https://docs.anychart.com/7.14.3/Maps/Map_Projections

​

    worldDataSet = anychart.data.set([

{id: "US", name: "USA", value: "A1"}

    ]);

​

    usaDataSet = anychart.data.set([

{"id": "US.TX", "value": 23}

    ]);

​

    txMap = anychart.map();

    txMap.geoData(anychart.maps["texas"]);

​

    usaMap = anychart.map();

    usaMap.geoData(anychart.maps.united_states_of_america);

    usaSeries = usaMap.choropleth(usaDataSet);

​

    var chart = anychart.map();

    chart.geoData(anychart.maps.world);

    worldSeries = chart.choropleth(worldDataSet);

    chart.container("container");

    chart.draw();

​

    worldSeries.listen("pointClick", function(e) {

// Drill down to specified map

chart.drillTo(e.point.get("id"), usaMap);

​

    });

​

    usaSeries.listen("pointClick", function(e) {

// Drill down to specified map

chart.drillTo(e.point.get("id"), txMap);

​

    });

});