IEVref:102-04-36ID:
Language:enStatus: Standard
Term: orientation, <of a surface>
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Definition: for a surface having a tangent plane at any point, property determined by the choice, continuously from point to point, of one of the two normal unit vectors at each point

Note 1 to entry: The orientation of a closed surface is towards interior or towards exterior. For some surfaces, for example the Möbius band, the orientation is only defined locally.


Publication date:2008-08
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Internal notes:2017-02-20: Editorial revisions in accordance with the information provided in C00019 (IEV 102) - evaluation. JGO
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