IWindRoseSeries.MirrorAngles
IWindRoseSeries

property MirrorAngles: WordBool;

Type Library
TeeChartx

Description
Default is False.

When True, points displayed in the WindRose series will be horizontally mirrored.

Labels showing the wind coordinates (S,N,W,E, etc) around the series aren't mirrored.

If you want to mirror the labels but not the points, use the MirrorLabels property.