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face

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  1. [Euclidean geometry] A planar surface of a geometric shape, bounded by edges. Media/face-1.gif
  2. [3D analysis] In a TIN, the flat surface of a triangle bounded by three edges and three nodes. Faces do not overlap; each face is adjacent to three other faces of the TIN. A face defines a plane with an aspect and slope. Media/face-2.gif

See also