Adobe Extending Flash Professional CS4 - Manual (Page 359)

337 EXTENDING FLASH CS4 PROFESSIONAL
Oval object
OvalObject.startAngle
Availability
Flash CS3 Professional.
Usage
OvalObject.startAngle
Description
Read-only property; a float value that specifies the start angle of the Oval object. Acceptable values are from 0 to 360.
To set this value, use document.setOvalObjectProperty() .
Example
The following example sets the start angle of selected Oval objects to 270:
fl.getDocumentDOM().setOvalObjectProperty("startAngle",270);
See also
document.setOvalObjectProperty() , OvalObject.endAngle , shape.isOvalObject