#### E.2.3 Surface model

The block geometry can be expressed using the surface geometry model, expressing it as a face based surface model.

| Figure E4 shows the block geometry represented by a surface model. Proxy with IfcShapeRepresentation RepresentationType="SurfaceModel" with hyperlinks Proxy with IfcShapeRepresentation RepresentationType="SurfaceModel" source file
Figure E4 — Basic shape represented as surface model |

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