Sets the thickness of line connecting indexLabel with its corresponding dataPoint. It is only applicable when indexLabelPlacement is set to “outside”.
Default: 2 for pie/doughnut, 0 for other chart typevar chart = new CanvasJS.Chart("container", { . . data: [{ type: "doughnut", dataPoints: [ {y: 24, indexLabel: "apple", indexLabelLineThickness: 4} ] }], . . }); chart.render();
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