Should Line/Polygon/Path points be absolute or relative to position ?

[GMartigny]

Points of a Line object have absolute position. That way, in order to draw a polygon between 3 shapes, it's easy to write:

const line = new Polygon([
	shape1.position,
	shape2.position,
	shape3.position,
]);

This means that moving one position don't change the others.

In the other hand, relative position could allow to move the polygon position and keep the polygon shape.

[GMartigny]

Relatives points allow shapes to be easily draggable by only modifying shape's position.

[GMartigny]

Fixed by f750ca8