html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.column();

​

    var firstSeries = chart.column([10, 11, 10, 12]);

    firstSeries.rendering({point: drawer});

​

    var secondSeries = chart.column([7, 3, 4, 1]);

    secondSeries.rendering({point: drawer});

​

    var thirdSeries = chart.column([6, 4, 8, 16]);

    thirdSeries.rendering({point: drawer});

​

    var currentYScale = chart.yScale();

    currentYScale.stackMode("value");

​

    chart.title("Get stacked zero");

    chart.container("container");

    chart.draw();

});

function drawer() {

​

    // Get stacked zero.

    var value = this.getStackedZero();

    // After that you can do something with this values.

​

    if (this.missing) {

        return;

    }

    var shapes = this.getShapesGroup(this.pointState);

​

    var leftX = this.x - this.pointWidth / 2;

    var rightX = leftX + this.pointWidth;

​

    shapes["path"]

        .moveTo(leftX, this.zero)

        .lineTo(this.x, this.value)

        .lineTo(rightX, this.zero)

        .close();

}