search

buildingSMART / IFC4-CV

IFC4 Coordination View
27 stars 7 forks source link

IFC CV Requirements #7

Closed LassiLiflander closed 9 years ago

LassiLiflander commented 10 years ago

It shall be possible to represent all typical geometrical members using swept solid presentation. This includes straight, curved and tapered members, as well as members with multiple corner points (polybeams). [Probably IfcSectionedSpine could be the solution.]

timchipman commented 10 years ago

For DHV in general, and for the RV where "members" means beams and columns, that seems achievable.

Though in the RV, anything with voids (walls, slabs, etc.) would need face-based models as CSG is out of scope.

timchipman commented 9 years ago

SolidModel Geometry is in scope is as follows:

IfcSolidModel R D IfcCsgSolid D IfcManifoldSolidBrep D IfcAdvancedBrep D IfcAdvancedBrepWithVoids
IfcFacetedBrep D IfcFacetedBrepWithVoids
IfcSweptAreaSolid R D IfcExtrudedAreaSolid R D IfcExtrudedAreaSolidTapered D IfcFixedReferenceSweptAreaSolid D IfcRevolvedAreaSolid R D IfcRevolvedAreaSolidTapered D IfcSurfaceCurveSweptAreaSolid D IfcSweptDiskSolid R D IfcSweptDiskSolidPolygonal

(R = Reference View, D = Design Transfer View)