Class Ifc4::IfcSurfaceStyleWithTextures

Nested Relationships

This class is a nested type of Struct Ifc4.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4::IfcSurfaceStyleWithTextures : public Ifc4::IfcPresentationItem

The entity IfcSurfaceStyleWithTextures allows to include image textures in surface styles. These image textures can be applied repeating across the surface or mapped with a particular scale upon the surface.

The entity IfcSurfaceStyleWithTextures is part of the surface style table for presentation information assigned to surfaces for shading, rendering and lighting with textures. The mapping of the texture onto the surface or the solid is determined by the texture coordinates, in absense of an IfcTextureCoordinate assigned to each surface texture, a default mapping of the texture to the geometric face or surface applies.

Surface textures included in the IfcSurfaceStyleWithTextures are two dimensional map formats. They define 2D images that contain an array of colour values describing the texture. Depending on the number of IfcSurfaceTextures being included in the list of Textures the IfcSurfaceStyleWithTextures either describes a single texture, or a multi texture.

single texture: a single surface texture is applied to the styled geometric item (entirely or partly) with optional repetition and texture transformation multi texture: two or more surface textures are applied to the styled geometric item (entirely or partly) with optional repetition, texture transformation or texture coordinate mapping being specific for each texture.

Informal proposition

Only one instance of IfcSurfaceStyleWithTextures shall be referenced by an IfcStyledItem and be assigned to an IfcGeometricRepresentationItem

NOTE The definitions of texturing within this standard have been developed in dependence on the texture component of X3D. See ISO/IEC 19775-1.2:2008 X3D Architecture and base components Edition 2, Part 1, 18 Texturing component for the definitions in the international standard.

HISTORY New entity in IFC2x2.

IFC2x3 CHANGE inverse attribute HasTextureCoordinates deleted.

Public Functions

IfcTemplatedEntityList<::Ifc4::IfcSurfaceTexture>::ptr Textures() const

The textures applied to the surface. In case of more than one surface texture is included, the IfcSurfaceStyleWithTexture defines a multi texture.

void setTextures(IfcTemplatedEntityList<::Ifc4::IfcSurfaceTexture>::ptr v)
const IfcParse::entity &declaration() const
IfcSurfaceStyleWithTextures(IfcEntityInstanceData *e)
IfcSurfaceStyleWithTextures(IfcTemplatedEntityList<::Ifc4::IfcSurfaceTexture>::ptr v1_Textures)

Public Static Functions

const IfcParse::entity &Class()