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Align Zero With Multiple Axes in Chart

Environment

Product Chart for Progress® Kendo UI®

Description

I have a chart with multiple axes. One has negavive values and the other does not. I want the zero on the two axes to be aligned and to show the negative values on one axis.

Solution

  1. Update the min and max setting for the value axes so they include both positive and negative values.
  2. Specify a function for the valueAxis.labels.template of the axes where only positive values should be displayed.
  3. Check the values in the template handler and return only the positive values. For the negative values return an empty string.
<div id="chart"></div>
</div>

<script>
    function onlyPositive(e) {
        if (e.value < 0) {
            return '';
        }

        return e.value;
    }


    $("#chart").kendoChart({
        title: {
            text: "Hybrid car mileage report"
        },
        legend: {
            position: "top"
        },
        series: [{
            type: "column",
            data: [20, 40, 45, 30, 50],
            stack: true,
            name: "on battery",
            color: "#cc6e38"
        }, {
            type: "column",
            data: [20, 30, 35, 35, 40],
            stack: true,
            name: "on gas",
            color: "#ef955f"
        }, {
            type: "line",
            data: [30, 38, 40, 32, 42],
            name: "mpg",
            color: "#ec5e0a",
            axis: "mpg"
        }, {
            type: "line",
            data: [-7.8, 6.2, 5.9, 7.4, 5.6],
            name: "l/100 km",
            color: "#4e4141",
            axis: "l100km"
        }],
        valueAxes: [{
            title: { text: "miles" },
            min: -100,
            max: 100,
            labels: { template: onlyPositive }
        }, {
            name: "km",
            title: { text: "km" },
            min: -192,
            max: 192,
            majorUnit: 32,
            labels: { template: onlyPositive }
        }, {
            min: -60,
            max: 60,
            name: "mpg",
            title: { text: "miles per gallon" },
            color: "#ec5e0a",
            labels: { template: onlyPositive }
        }, {
            name: "l100km",
            title: { text: "liters per 100km" },
            color: "#4e4141"
        }],
        categoryAxis: {
            categories: ["Mon", "Tue", "Wed", "Thu", "Fri"],
            // Align the first two value axes to the left
            // and the last two to the right.
            //
            // Right alignment is done by specifying a
            // crossing value greater than or equal to
            // the number of categories.
            axisCrossingValues: [0, 0, 10, 10]
        }
    }); 

</script>
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