GIS Dictionary

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  1. [data structures] In a TIN, one of the three corner points of a triangle, topologically linked to all triangles that meet there. Each sample point in a TIN becomes a node in the triangulation that may store elevation z-values and tag values. Media/nodes.gif
  2. [Esri software] In a geodatabase, the point representing the beginning or ending point of an edge, topologically linked to all the edges that meet there.
  3. [network analysis] A point at which a line ends or where two or more lines come together or intersect in a network.
  4. [mathematics] In graph theory, any vertex in a graph.

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