ISO 10303-214:2010(E)
A Vertex_loop is a loop that consists of only one vertex. The dimensionality of a Vertex_loop is zero.
EXAMPLE The tip of a cone is an example for the usage of a Vertex_loop.
The data associated with a Vertex_loop are the following:
loop_vertex
The loop_vertex specifies a Vertex_point that represents the geometry of the associated vertex.
See vertex_loop to vertex_point for the application assertion.
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