Property Value
Supported values:
- null - disable transforming of the annotation;
- instance of WpfPointBasedAnnotationPointTransformer class - allows to change the StartAngle and SweepAngle;
- instance of WpfPointBasedArcAnnotationTransformer class - allows to transform (move/resize/rotate/...) of the annotation;
- instance of WpfCompositeInteractionController class - allows composition of WpfPointBasedAnnotationPointTransformer and WpfPointBasedArcAnnotationTransformer