Downloaded from https://www.everyspec.com APPENDIX C MIL-STD-31000A Topology. The branch of mathematics that describes the properties of geometric systems that remain constant irrespective of their dimensions. (adjective: topological) Each of the following examples of hexahedra has varying topologies because their number of edges and vertices differ. Translation. The conversion of a 3D CAD model from one format to another. Trimmed Curve or Surface. A curve or surface whose extents are limited by intersection with other curves or surfaces. Vertex. A topological construct representing the intersection of two or more edges. Visualization.
A 3D model whose primary purpose is to be viewed by people. Visualization models are often faceted representations and may not suitable for processing by computer applications such as analytical mesh generation, numerically controlled programming, or machine inspection. Volume. A bounded three-dimensional space. Work Piece. The physical product of an NC manufacturing operation. 64