By setting maxNumberOfAutoBreaks, you can control the maximum number of automatically added scaleBreaks when autoCalculate is set to true.
Default: 2var chart = new CanvasJS.Chart("chartContainer",
{
.
.
axisY: {
.
.
scaleBreaks: {
autoCalculate: true,
maxNumberOfAutoBreaks: 3
},
.
.
},
.
.
});
chart.render();
Also See: