Map Interfaces Using Web Map Services in an Agricultural Model

cost benefits of rehabilitation after acute coronary syndrome in iran; using an epidemiological model

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modification of drastic model to map groundwater vulnerability to pollution using nitrate measurements in agricultural areas

drastic model has been used to map groundwater vulnerability to pollution in many areas. since this method is used in different places without any changes, it cannot consider the effects of pollution type and characteristics. therefore, the method needs to be calibrated and corrected for a specific aquifer and pollution. in the present research, the rates of drastic parameters have been correct...

Cartographic Extensions to OGC Web Map Services - Specifications for a Map and Diagram Service

Searching the Web Using a Map

Most Internet search engines are keyword-based. They are not efficient for the queries where geographical location is important, such as finding hotels within an area or close to a place of interest. A natural interface for spatial searching is a map, which can be used not only to display locations of search results but also to assist forming search conditions. A map-based search engine require...

Caching Techniques for High-Performance Web Map Services

The demand for digital maps on the Internet has increased considerably in the last few years. Therefore the performance of Web Mapping Services is becoming more and more important. This article introduces different caching techniques for high performance transfer of data using standardized OGC Web Map Services (WMS). It describes and examines different caching mechanisms based on tile caching, ...