Node Topology: A description of the relationship of point objects that describe a common geographic feature. Examples of node topologies include point sources of pollution and road signs.
arc-node topologyThe topological data structure ARC/INFO uses to represent connectivity between arcs and nodes.
Arc/node topology - Arcs represent linear and area features in a digital map. Arcs split where they intersect with one another.
arc-node topology
The data structure in a coverage used to represent linear features and polygon boundaries and to support analysis functions, such as network tracing. Nodes represent the beginning and ending vertices of each arc.
The arc-node topology data model is central to many ArcGIS vector operations. Arcs are represented with starting and ending nodes, which imparts directionality to the arcs.
See Also: arc-node topology, polygon-arc topology
[ESRI software] In geodatabases, the arrangement that constrains how point, line, and polygon features share geometry.
Arcs are topologically linked to nodes (arc-node topology) and to polygons (polygon-arc topology). The descriptive attributes of arcs are stored in the arc attribute table (AAT). See also node.
Below are four polygons (A - D) with a Node Topology Table describing their location with respect to one another. Numbered 1 - 7 are the arcs that make up the polygons. The nodes that connect the arcs are numbered I - V.
The polygon topology table describes the arcs that bound each polygon, the node topology table describes the arcs that end at each of the nodes, ...
 See also: Node, Topology, Polygon, Feature, Record
  
|
RSS
