Results 1 to 10 of about 8,775 (205)
Systémy GIS první generace ukládaly svá data do souborů v proprietárních formátech. Další generace těchto systémů dokázaly spolupracovat s databázemi (zejména čerpat data s databází). Soudobé GIS systémy se již zcela spoléhají na databáze. Tyto požadavky
Pavel Stěhule
doaj +3 more sources
Statistically enriched geospatial datasets of Brazilian municipalities for data-driven modeling [PDF]
Measurement(s) Socioenvironmental descriptive statistics Technology Type(s) PostGIS • QGIS Sample Characteristic - Environment All biomes Sample Characteristic - Location ...
Livia Abdalla +5 more
doaj +2 more sources
WORKFLOW AUTOMATION WITH POSTGIS TOPOLOGY
Traditionally, a process of changing district borders can be a long and cumbersome process involving several layers of political decision-making. By using PostGIS topology and database triggers the workflow can be optimised and the setup automated ...
Anders Møller Jacobsen
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Developing an Intelligent PostGIS Database to Support Accessibility Tools for Urban Pedestrians
People with mobility impairment must travel through cities with extra care. An intelligent database of Maps for Easy Paths (MEP) project for storing and retrieving accessibility information about a particular path by using PostGIS may enable the public ...
Daniel Sinkonde +4 more
doaj +3 more sources
rpostgis: Linking R with a PostGIS Spatial Database [PDF]
With the proliferation of sensors and the ease of data collection from online sources, large datasets have become the norm in many scientific disciplines, and efficient data storage, management, and retrival is imperative for large research projects.
Mathieu Basille
exaly +2 more sources
Web client for PostGIS—the concept and implementation
PostgreSQL with PostGIS extension plays one of the major roles in many complex GIS frameworks. There exist many possibilities how to access such data storage, but most of them might be seen as not simple for new users.
Michal Kepka, Jan Ježek
doaj +3 more sources
India Policy Insights: A geospatial and temporal data science and visualization platform and architecture [PDF]
The Geographic Insights Lab at Harvard University developed India Policy Insights (IPI), a spatio-temporal visualization platform for policymakers. IPI provides insights from 122 indicators across population, health, and socioeconomic metrics spanning ...
Devika Jain +5 more
doaj +2 more sources
VOXEL DATA MANAGEMENT AND ANALYSIS IN POSTGRESQL/POSTGIS UNDER DIFFERENT DATA LAYOUTS [PDF]
Three-dimensional (3D) raster data (also named voxel) is important sources for 3D geo-information applications, which have long been used for modelling continuous phenomena such as geological and medical objects. Our world can be represented in voxels by
W. Li, S. Zlatanova, B. Gorte
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POSTGIS-T: TOWARD A SPATIOTEMPORAL POSTGRESQL DATABASE EXTENSION
The temporal dimension of spatial data has been the subject of discussion in the literature for a long time. While there are numerous Database Management System (DBMS) solutions for spatial dimension, we do not observe the same situation for ...
Rolf Ezequiel de Oliveira Simoes +4 more
doaj +2 more sources
PostGIS-powered proximity queries: implementation and Google Maps visualization [PDF]
Location-based services require efficient methods to calculate nearby points of interest. This article presents an implementation methodology for proximity queries using PostgreSQL’s PostGIS extension, focusing on the ST_DWithin function and spatial ...
Pavan Kumar Papasani, Ravi Teja Papasani
doaj +3 more sources

