RCC8 Topological Functions
Metadata
- IRI
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http://www.opengis.net/def/function/rcc8 - Definition
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All of the RCC8 Topological Functions
- Publisher
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https://defs.opengis.net/org/ogc
- Creator
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https://defs.opengis.net/org/geosparql-swg
- Created
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2025-10-14
- Modified
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2026-01-19
- Copyright Notice
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(c) 2022 Open Geospatial Consortium
- History Note
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Defined since GeoSPARQL 1.0
- Source
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http://www.opengis.net/doc/geosparql/1.1
Concept Hierarchy
Concept Definitions
disconnected
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8dc
|
| Definition | A query function that returns true if the input geometries are disjoint. DE-9IM: FFTFFTTTT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
equals
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8eq
|
| Definition | A query function that returns true if the input geometries are equal. DE-9IM: TFFFTFFFT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
externally connected
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8ec
|
| Definition | A query function that returns true if the input geometries meet. DE-9IM: FFTFTTTTT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
non-tangential proper part
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8ntpp
|
| Definition | A query function that returns true if the first geometry argument is spatially inside the second geometry argument. DE-9IM: TFFTFFTTT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
non-tangential proper part inverse
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8ntppi
|
| Definition | A query function that returns true if the first geometry argument spatially contains the second geometry argument. DE-9IM: TTTFFTFFT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
partially overlapping
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8po
|
| Definition | A query function that returns true if the input geometries overlap. DE-9IM: TTTTTTTTT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
tangential proper part
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8tpp
|
| Definition | A query function that returns true if the first geometry argument is spatially covered by the second geometry argument. DE-9IM: TFFTTFTTT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
tangential proper part inverse
| IRI |
http://www.opengis.net/def/function/geosparql/rcc8tppi
|
| Definition | A query function that returns true if the first geometry argument spatially covers the second geometry argument. DE-9IM: TTTFTTFFT |
| Is Defined By | http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/rcc8-query-functions |
| Source | http://www.opengis.net/doc/geosparql/1.1 |
Namespaces
- cs
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http://www.opengis.net/def/function/rcc8 - dcterms
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http://purl.org/dc/terms/ - fno
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https://w3id.org/function/ontology# - geo
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http://www.opengis.net/ont/geosparql# - geof
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http://www.opengis.net/def/function/geosparql/ - ns1
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http://www.opengis.net/spec/geosparql/1.1/req/geometry-topology-extension/ - ns2
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http://www.opengis.net/doc/geosparql/ - owl
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http://www.w3.org/2002/07/owl# - policy
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http://www.opengis.net/def/metamodel/ogc-na/ - rdf
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http://www.w3.org/1999/02/22-rdf-syntax-ns# - rdfs
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http://www.w3.org/2000/01/rdf-schema# - schema
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https://schema.org/ - sd
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http://www.w3.org/ns/sparql-service-description# - skos
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http://www.w3.org/2004/02/skos/core# - status
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http://www.opengis.net/def/status/ - xsd
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http://www.w3.org/2001/XMLSchema#