---
# mdJson codelists
# base codelist for ISO 19115-2, 19115-1
# extended for ADIwg

codelistType: "staticList"
codelistName: "iso_topologyLevel"
source: "ISO"
sourceName: "MD_TopologyLevelCode"
extensible: true
description: "degree of complexity of the spatial relationships"
codelist:
  - {code: "001", codeName: geometryOnly, description: "geometry objects without any additional structure which describes topology"}
  - {code: "002", codeName: topology1D, description: "1-dimensional topological complex – commonly called “chain-node” topology"}
  - {code: "003", codeName: planarGraph, description: "1-dimensional topological complex that is planar NOTE A planar graph is a graph that can be drawn in a plane in such a way that no two edges intersect except at a vertex"}
  - {code: "004", codeName: fullPlanarGraph, description: "2-dimensional topological complex that is planar NOTE A 2-dimensional topological complex is commonly called “full topology” in a cartographic 2D environment"}
  - {code: "005", codeName: surfaceGraph, description: "1-dimensional topological complex that is isomorphic to a subset of a surface NOTE A geometric complex is isomorphic to a topological complex if their elements are in a one-to-one, dimensional-and boundary-preserving correspondence to one another"}
  - {code: "006", codeName: fullSurfaceGraph, description: "2-dimensional topological complex that is isomorphic to a subset of a surface"}
  - {code: "007", codeName: topology3D, description: "3-dimensional topological complex NOTE A topological complex is a collection of topological primitives that are closed under the boundary operations"}
  - {code: "008", codeName: fullTopology3D, description: "complete coverage of a 3D Euclidean coordinate space"}
  - {code: "009", codeName: abstract, description: "topological complex without any specified geometric realisation"}