Rendering optimization method and implementation of power grid WebGIS based on Web Worker

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 effect marking displaying rules after vectorization, simplifying line generating vector tiles dynamically, station label dodging. result test shows that can effectively improve fluency user experience existing applications.