OptionalNameOptionalprioritiesLayer priorities for the relationship, by wall. Default empty.
OptionalpriorityWhich wall runs through at an L corner, and is the relating wall of a
butt join. Default: the thicker wall, a on a tie. Ignored for a T,
where the path wall always runs through.
OptionaltoleranceHow far (metres, along each axis) an axis end may sit from the crossing and still count as joined there. Default twice the larger thickness, which covers a wall drawn to the other's face.
Name for the IfcRelConnectsPathElements.