AM_ROT_CENTERLINE_BY_ANGLE modifies existing center lines by rotating them by a given angle.
+------------------<---------------+
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---->(AM_ROT_CENTERLINE_BY_ANGLE)---+---(:ANGLE)---|angle|-------------+----->
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+---(:CEN_LINE)---|center line|----+
- :ANGLE specifies the angle of rotation.
- :CEN_LINE selects the center line(s) to rotate. Use the :START and :ADD options for
multiple center line selection. For single selection simply indicate a center line.
Use this action to rotate existing center lines by a specified angle.
AM_CREATE_CENTERLINE terminate action,
AM_ROT_CENTERLINE terminate action,
AM_EXT_CENTERLINE terminate action