heading

The marker symbol layer's heading: the angle of rotation about the anchor point. The input value can be any real number. The default value is 0. This property affects markers in both maps and scenes. Positive angles rotate the marker counterclockwise.

Angle for MarkerSymbolLayer is measured in degrees counterclockwise from 0 to 360. Marker symbol layers can have a separate heading value defined (which is also 0 by default). Setting a heading for a marker symbol layer does not affect the angle of the point symbol. When an angle value is set for the point symbol, however, that value is applied cumulatively to all the marker symbol layers it contains. The heading for individual symbol layers must be re-fetched in order to see the updated value. In 2D, the rotation applies around the anchor point of the 2D marker. For 3D markers, the rotation applies around the z-axis.