C# (CSharp) BuildingSmart.IFC.IfcPresentationAppearanceResource IfcColourRgb - 4 examples found. These are the top rated real world C# (CSharp) examples of BuildingSmart.IFC.IfcPresentationAppearanceResource.IfcColourRgb extracted from open source projects. You can rate examples to help us improve the quality of examples.