Design of WebGIS Rendering Engine Based on Silverlight-based RIA

In order to render WebGIS vector map with better effects, build a client-side multi-level structural vector map rendering engine, which is built upon Microsoft's Silver light-based RIA and SQL Server 2008 spatial database. Implement a marine management system for Nan tong City (MMSNT) based on this engine. build the architecture of the system used Windows Communication Foundation(WCF) data com-munication and introduce the detailed technology. The successful application of the rendering engine in MMSNT sufficiently shows that the rendering engine is valuable in many GIS-related applications.