Module org.opengis.geoapi
Package org.opengis.metadata.quality

Interface TopologicalConsistency

All Superinterfaces:
Element, LogicalConsistency
@UML(identifier="DQ_TopologicalConsistency", specification=ISO_19157) public interface TopologicalConsistency extends LogicalConsistency
Correctness of the explicitly encoded topological characteristics of the data set. The data set is described by the scope.

Standardized values

In order to achieve well defined and comparable quality information, it is recommended to report data quality using quality measures listed in ISO 19157 annex. The following table provides a summary; see ISO 19157 for more complete descriptions and examples. All identifiers should be in "ISO 19157" namespace.
Standardized values derived from ISO 19157
Identifier Name of measure Aliases Basic measure Parameters Value type
21 number of faulty point-curve connections extraneous nodes error count Integer
22 rate of faulty point-curve connections error rate Real
23 number of missing connections due to undershoots undershoots error count search distance from the end of a dangling line Integer
24 number of missing connections due to overshoots overshoots error count search tolerance of minimum allowable length in the data set Integer
25 number of invalid slivers slivers error count maximum sliver area size, thickness quotient Integer
26 number of invalid self-intersect errors loops error count Integer
27 number of invalid self-overlap errors kickbacks error count Integer

Definitions:

  1. Number of faulty point-curve connections in the data set.
  2. Number of faulty link node connections in relation to the number of supposed link node connections.
  3. Count of items in the data set, within the parameter tolerance, that are mismatched due to undershoots.
  4. Count of items in the data set, within the parameter tolerance, that are mismatched due to overshoots.
  5. Count of all items in the data set that are invalid sliver surfaces.
  6. Count of all items in the data that illegally intersect with themselves.
  7. Count of all items in the data that illegally self overlap.
Since:
2.0