static RadialLayout()
{
StartAngleProperty = DependencyProperty.Register("StartAngle",
typeof(double),
typeof(RadialLayout),
new PropertyMetadata(0.0,
new PropertyChangedCallback(OnNeedMeasureOnChanged)));
EndAngleProperty = DependencyProperty.Register("EndAngle",
typeof(double),
typeof(RadialLayout),
new PropertyMetadata(360.0,
new PropertyChangedCallback(OnNeedMeasureOnChanged)));
CircleProperty = DependencyProperty.Register("Circle",
typeof(bool),
typeof(RadialLayout),
new PropertyMetadata(false,
new PropertyChangedCallback(OnNeedMeasureOnChanged)));
}