face

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In [[ECDIS]] a two dimensional [[spatial object]].  A face is a continuous area defined by a loop of one or more [[edge|edges]] which bound it.  A face may contain interior holes, defined by closing loops of [[edge|edges]].  These interior [[boundary|boundaries]] must be within the outer [[boundary]].  No [[boundary]] may cross itself or touch itself other than at the beginning/end [[node]].  None of the [[boundary|boundaries]] may touch or cross any other [[boundary]].  Faces are defined only in the [[full topology]] data structure.
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In [[ECDIS]] a two dimensional [[spatial object]].  A face is a continuous [[Area|area]] defined by a loop of one or more [[edge|edges]] which bound it.  A face may contain interior holes, defined by closing loops of [[edge|edges]].  These interior [[boundary|boundaries]] must be within the outer [[boundary]].  No [[boundary]] may cross itself or touch itself other than at the beginning/end [[node]].  None of the [[boundary|boundaries]] may touch or cross any other [[boundary]].  Faces are defined only in the [[full topology]] [[data structure]].

Revision as of 13:18, 5 November 2014

In ECDIS a two dimensional spatial object. A face is a continuous area defined by a loop of one or more edges which bound it. A face may contain interior holes, defined by closing loops of edges. These interior boundaries must be within the outer boundary. No boundary may cross itself or touch itself other than at the beginning/end node. None of the boundaries may touch or cross any other boundary. Faces are defined only in the full topology data structure.

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