No Tangential Intersections
Contours do not touch, but can cross each other transversely wherever they meet.
The user will be notified after the creation of movement of a shape that a violation has occurred if one shapes edge touches another.
Snap To Constrain
After a new shape has been created or a shape has been moved, if the shape touches the outline of another shape it will be moved slightly so a violation does not occur.
Whilst drawing a shape or moving a shape any position in which a violation would occur will not be allowed.