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| Titel: |
A New Language for Geographic Information Systems Querying |
| Auteur: |
F.G. Meddah H. Belbachir R. Laurini |
| Verschenen in: |
Journal of applied sciences |
| Paginering: | Jaargang 10 (2010) nr. 11 pagina's 887-894 |
| Jaar: |
2010 |
| Inhoud: |
This study proposed a new language which offers the possibility to query Geographic Information Systems (GIS) with visual queries. Following the progress of the society and the development of technology, there is much more demand for geographic information. But, most of the Geographic Information Systems (GIS) available now are geared toward professionals. They do not have a friendly query interface and only well-trained persons can get information from them. Ordinary people cannot benefit from GIS directly. So, it is valuable to construct an easy-to-use visual query system to retrieve geographic information. To address this problem, we have developed a new visual language. A query is formulated in this language by successive selections of icons and metaphors. A prototype running ENVIS has been realized, which allows users to query experimental data by following a SQL-like SELECT-FROM-WHERE scheme. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 23 gevonden artikelen
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