Struct Ifc4x3_rc1::IfcRoofTypeEnum

Nested Relationships

This struct is a nested type of Struct Ifc4x3_rc1.

Struct Documentation

struct Ifc4x3_rc1::IfcRoofTypeEnum

Public Types

enum Value

This enumeration defines the basic configuration of the roof in terms of the different roof shapes, as illustrated in Figure 68.

Roofs which are subdivided into more than these basic shapes have to be defined by the geometry only. Also roofs with non-regular shapes (free form roof) have to be defined by the geometry only. The type of such roofs is FREEFORM.

HISTORY New Enumeration in IFC Release 2x.

Enumerator Description Figure

FLAT_ROOF A roof having no slope, or one with only a slight pitch so as to drain rainwater.

SHED_ROOF A roof having a single slope.

GABLE_ROOF A roof sloping downward in two parts from a central ridge, so as to form a gable at each end.

HIP_ROOF A roof having sloping ends and sides meeting at an inclined projecting angle.

HIPPED_GABLE_ROOF A roof having a hipped end truncating a gable.

GAMBREL_ROOF A ridged roof divided on each side into a shallower slope above a steeper one.

MANSARD_ROOF A roof having on each side a steeper lower part and a shallower upper part.

BARREL_ROOF A roof or ceiling having a semicylindrical form.

RAINBOW_ROOF A gable roof in the form of a broad Gothic arch, with gently sloping convex surfaces.

BUTTERFLY_ROOF A roof having two slopes, each descending inward from the eaves.

PAVILION_ROOF A pyramidal hip roof.

DOME_ROOF A hemispherical hip roof.

FREEFORM Free form roof

NOTDEFINED No specification given

Figure 68 — Roof types


enumerator IfcRoofType_FLAT_ROOF
enumerator IfcRoofType_SHED_ROOF
enumerator IfcRoofType_GABLE_ROOF
enumerator IfcRoofType_HIP_ROOF
enumerator IfcRoofType_HIPPED_GABLE_ROOF
enumerator IfcRoofType_GAMBREL_ROOF
enumerator IfcRoofType_MANSARD_ROOF
enumerator IfcRoofType_BARREL_ROOF
enumerator IfcRoofType_RAINBOW_ROOF
enumerator IfcRoofType_BUTTERFLY_ROOF
enumerator IfcRoofType_PAVILION_ROOF
enumerator IfcRoofType_DOME_ROOF
enumerator IfcRoofType_FREEFORM
enumerator IfcRoofType_USERDEFINED
enumerator IfcRoofType_NOTDEFINED

Public Static Functions

IFC_PARSE_API const char *ToString(Value v)
IFC_PARSE_API Value FromString(const std::string &s)