IfcRoofTypeEnum

IfcRoofTypeEnum

类型定义

该枚举根据不同的屋顶形状定义了屋顶的基本配置，如下图所示。

细分为多个基本形状的屋顶或具有非规则形状的屋顶（自由形式屋顶）的类型为FREEFORM。

IFC2x中的新枚举。

 

0

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
USERDEFINED	No specification given
NOTDEFINED	No specification given

Figure 182 — Roof types

Enumeration definition

Constant	Description
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 roof sloping downward in two parts from a central ridge, so as to form a gable at each end.
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.
USERDEFINED	No specification given.
NOTDEFINED	No specification given.

 

 

EXPRESS Specification

TYPE IfcRoofTypeEnum = ENUMERATION OF (
 FLAT_ROOF,
 SHED_ROOF,
 GABLE_ROOF,
 HIP_ROOF,
 HIPPED_GABLE_ROOF,
 GAMBREL_ROOF,
 MANSARD_ROOF,
 BARREL_ROOF,
 RAINBOW_ROOF,
 BUTTERFLY_ROOF,
 PAVILION_ROOF,
 DOME_ROOF,
 FREEFORM,
 USERDEFINED,
 NOTDEFINED);
END_TYPE;

 

 

 

 

 

 

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