AngleWidget
Introduction
vtkAngleWidget places three handles and measures the angle they form at the second one.
Methods
getAngle
The angle formed by the three placed handles, in radians. Returns 0 until the three handles are placed.
getManipulator
The manipulator the handles are driven by.
getRepresentationsForViewType
The representation builders the widget uses in the given view type.
setManipulator
Set the manipulator on the widget and on each of its handles.