Geospatial Online Applications and Services

Special Issue Editors


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Guest Editor
Data Science Institute and Database and Theoretical Computer Science Group, Hasselt University, Agoralaan, Gebouw D, 3590 Diepenbeek, Belgium
Interests: constraint databases; spatial and spatiotemporal databases; GIS; spatiotemporal data analysis; computational algebraic geometry
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
Interests: databases; computational linguistics; bioinformatics; geoinformatics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Geospatial online applications and services are a new area that has been developed because of the availability of new, high-quality geographic data and that has enabled a rapid expansion of a range of business, governmental, and nonprofit services. In this Special Issue, we look for all topics related to this overall theme. These topics include the following:

  • Geospatial services in the Cloud
  • Geospatial data dissemination
  • Geospatial training services
  • Big Earth data initiative (BEDI)-based applications
  • Geospatial and spatiotemporal data semantics
  • Web–GIS systems development issues
  • Human–computer interaction in geospatial systems
  • Climate adaptation planning
  • Environmental pollution control
  • Remote sensing application

We welcome submissions on other related topics in addition to those in the above non-inclusive list of items. Please contact the Special Issue editors in case of any concern regarding fit into the Special Issue or other questions.

Prof. Dr. Bart Kuijpers
Prof. Dr. Peter Revesz
Guest Editors

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Keywords

  • geospatial
  • spatiotemporal
  • trajectory
  • remote sensing
  • applications
  • data
  • databases
  • GIS
  • online services
  • data mining

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Published Papers (1 paper)

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Research

24 pages, 4886 KiB  
Article
Performance Testing on Vector vs. Raster Map Tiles—Comparative Study on Load Metrics
by Rostislav Netek, Jan Masopust, Frantisek Pavlicek and Vilem Pechanec
ISPRS Int. J. Geo-Inf. 2020, 9(2), 101; https://doi.org/10.3390/ijgi9020101 - 6 Feb 2020
Cited by 24 | Viewed by 7457
Abstract
Recent developments in web map applications have widely affected how background maps are rendered. Raster tiles are currently considered as a regular solution, while the use of vector tiles is becoming more widespread. This article describes an experiment to test both raster and [...] Read more.
Recent developments in web map applications have widely affected how background maps are rendered. Raster tiles are currently considered as a regular solution, while the use of vector tiles is becoming more widespread. This article describes an experiment to test both raster and vector tile methods. The concept behind raster tiles is based on pre-generating an original dataset including a customized symbology and style. All tiles are generated according to a standardized scheme. This method has a few disadvantages: if any change in the dataset is required, the entire tile-generating process must be redone. Vector tiles manipulate vector objects. Only vector geometry is stored on the server, while symbology, rendering, and defining zoom levels run on the client-side. This method simplifies changing symbology or topology. Based on eight pilot studies, performance testing on loading time, data size, and the number of requests were performed. The observed results provide a comprehensive comparison according to specific interactions. More data, but only one or two tiles, were downloaded for vector tiles in zoom and move interactions, while 40 tiles were downloaded for raster tiles for the same interactions. Generally, the WebP format downloaded about three times fewer data than Portable Network Graphics (PNG). Full article
(This article belongs to the Special Issue Geospatial Online Applications and Services)
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