Abstract In the power grid WebGIS application, graphical display of equipment is one most basic functions. However, massive data brought by growing number brings difficulties to both server-side storage and client-side rendering. Aiming at characteristics GIS data, this paper presents a Web Worker-based rendering optimization method uses program implement it. The improves speed client optimizes...

This contribution presents the "mapping service environmental noise Schleswig-Holstein": The main component of this web platform consists of a WebGIS with strategic noise maps ("Noise Atlas"). The system was developed in order to support the demands for the first period of the EC Environmental Noise Directive in 2007. The Noise Atlas was since then enhanced continuously, the additions include a...

For an efficient recovery and reuse of resources of the building stock, as described in urban mining, information about prospective quantities and qualities of resources is essential. For current stock projections with the so-called bottom-up-method, especially information about building types and building ages has to be known. Currently there is a lack of continuous datasets regarding detailed...

This paper discusses the establishment, management and application of remote sensing image database. A systematical structure for remote sensing image database is presented and analyzed. This architecture is based on web service technology, rather than traditional Browser/Server or Client/Server model. To process and publish mass remote sensing images on the web, appropriate system framework an...