Welcome to the Highcharts JS (highcharts) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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In a polar chart, this is the angle of the Y axis in degrees, where 0 is up and 90 is right. The angle determines the position of the axis line and the labels, though the coordinate system is unaffected. Since v8.0.0 this option is also applicable for X axis (inverted polar).