Results 191 to 200 of about 8,696 (229)

Extending PostGIS by imprecise point objects

IEEE 8th International Symposium on Intelligent Systems and Informatics, 2010
In this paper we propose extension of PostGIS Spatial Database Management system by imprecise point object type. Position imprecision is modelled as fuzzy point in R2 linear fuzzy space. The linear fuzzy space is defined over R2 where the membership function is convex, upper semi continuous, symmetric w.r.t core, linearly decreasing w.r.t core distance,
D. Obradovic, Endre Pap, Zora Konjović
openaire   +2 more sources

A PostGIS extension to support advanced spatial data types and integrity constraints

SIGSPATIAL/GIS, 2017
Geometric primitives defined by OGC and ISO standards, implemented in most modern spatially-enabled database management systems (DBMS), are unable to capture the semantics of richer representation types, as found in current geographic data models ...
Luís Eduardo Oliveira Lizardo, Clodoveu Augusto Davis Junior   +1 more
semanticscholar   +1 more source

Supporting Trajectory UDF Queries and Indexes on PostGIS

, 2017
In this paper, we propose a system model for querying and indexing the GPS trajectory of moving objects on PostGIS/PostgreSQL. We developed moving object data types including MPoint(moving point), MDouble(moving double) for GPS trajectories.
P. Yang, K. Nam
semanticscholar   +1 more source

XPlanung für einen Flächennutzungsplan mit PostGIS und QGIS

, 2016
Im Flachennutzungsplan (FNP) wird die beabsichtigte Bodennutzung des Gebietes einer Gemeinde dargestellt (§5 BauGB). In der Stadt Jena wurde im Jahre 2015 mit der Neuerstellung des FNP begonnen.
B. Ströbl
semanticscholar   +1 more source

Parallel algorithm for improving the performance of spatial queries in SQL: The use cases of SQLite/SpatiaLite and PostgreSQL/PostGIS databases

Computational Geosciences, 2021
Mateusz Ilba
semanticscholar   +1 more source

Vector–raster server-side analysis: a PostGIS benchmark

Applied Geomatics, 2013
Report generation from coverages around points of interest (POIs) or in areas of interest (AOIs) is a common need in thematic research projects. The extracted information adds value to the POIs or AOIs dataset by enriching its information content. In a common scenario, POIs or AOIs are usually vector data whereas background thematic datasets are often ...
openaire   +3 more sources

Raster with Postgis

2015
National ...
Moulery, Michel, Samake, Abdramane
openaire   +1 more source

Postgis kao suvremeni informacijski ekosustav

2014
U ovom radu biti će prikazan suvremeni informacijski ekosustav kao što su GoogleMaps, Bing Maps, OpenStreets i sl, koji većinom odgovaraju na pitanje gdje se nešto nalazi. Podloga tih kartografskih servisa su prostorni podaci, na određeni način strukturirani i organizirani. Suprotno naizglednoj jednostavnosti spomenutih servisa, suvremeni informacijski
Šimec, Alen, Tkalčec, Siniša
openaire   +1 more source

Kombinacija TimescaleDB i PostGIS kao prostorno- vremenska baza podataka

2019
Razvojem IoT (Internet of Things), pohrana i pretraživanje vremenskih podataka je postala ključna. Ako uzmemo u obzir da većina uređaja koje svakodnevno koristimo sadrže i prostornu komponentu, najčešće je to lokacija uređaja, onda je izvjesno da je potrebno imati i adekvatnu bazu za pohranu takvih podataka. Unutar ovog diplomskog rada će se razmotriti
openaire   +2 more sources

Performance analysis of MongoDB versus PostGIS/PostGreSQL databases for line intersection and point containment spatial queries

Spatial Information Research, 2016
Sarthak Agarwal, K S Rajan
semanticscholar   +1 more source