Replaces a free point by a point linked to another existing point syntax setLinkPointPoint(a, b) is also allowed
setLinkPointPoint(a, b)
Name (or tag if name is empty) of the free point that is to be linked to another point
Name (or tag if name is empty) of the point the free point is to be linked to
Replaces a free point by a point linked to another existing point syntax
setLinkPointPoint(a, b)is also allowed