[ObsoleteAttribute("This property is obsolete and will be removed in a future version of Revit. Use DividePerimeter instead.")]
public bool MassZoneDividePerimeter { get; set; }

<ObsoleteAttribute("This property is obsolete and will be removed in a future version of Revit. Use DividePerimeter instead.")> _
Public Property MassZoneDividePerimeter As Boolean
	Get
	Set

[ObsoleteAttribute(L"This property is obsolete and will be removed in a future version of Revit. Use DividePerimeter instead.")]
public:
property bool MassZoneDividePerimeter {
	bool get ();
	void set (bool value);
}

The quadrants will be True N, S, E, and W. The division of the quadrants will be along the axis of True NW to SE and True SW to NE. The intersection of the quadrants will be placed at the centroid of the zone. The purpose of these divisions is to ensure that auto-generated zoning is appropriate for thermal loads generated by the relative position of the building to the sun path.