How a single-panel door opens, as IFC names its operation types. The door's geometry is the same
panel for each; the operation is what other tools read to draw its swing. Left and right are as IFC
defines them, seen looking along the door's Y axis, which points to its wall's left: standing on the
wall's right side, with the wall's start on your left, a left door is hinged toward the wall's start
and a right door toward its end. The handle is on the other edge.
How a single-panel door opens, as IFC names its operation types. The door's geometry is the same panel for each; the operation is what other tools read to draw its swing. Left and right are as IFC defines them, seen looking along the door's Y axis, which points to its wall's left: standing on the wall's right side, with the wall's start on your left, a left door is hinged toward the wall's start and a right door toward its end. The handle is on the other edge.