If nonzero, indicates that the raising of the Changed event has been suspended. This value is incremented when SuspendChangedEvent is called and decremented when ResumeAndRaiseChangedEvent is called.

Gets the direction of this line. It returns a unit vector.

Determines whether or not this curve shape is degenerate. This occurs when curve shapes have a perimeter of 0.

Indicates if the set of points lying on the boundary of this shape is empty.

Indicates if this shape has finite extents.

Gets the point on this line nearest to the origin.

The 3D coordinate space in which this shape is to be interpreted.

Gets/sets the ShapeState for this shape.

Returns the complete set of state flags supported on this object. The flags may be indexed by name as shown in the following C# code snippet: if (changedObject.StateFlags["Color"] & eventArgs.StateFlags) { ... }