Creating SLD of spatial data for webGIS open source code with CSS in Geoserver

Abstract

Spatial data visible on webGIS through SLD description. Writing SLD files is a big challenge for non-GIS users and programmers. SLD for spatial data is similar to CSS for web elements. This study builds a process with three phases for using GeoCSS to write CSS code to create SLD files, helping users to well solve the above problem. On the basis of using shape file data research of Vinh Phuc province (Vietnam), the author wrote CSS codes which is the simplest and most typical form on GeoCSS to create the style for all three types of spatial data: point, line, and polygon. Spatial attributes are carefully selected so that they can be applied as a template to any data of the same type. The author has tested the generated SLD files against the default data on Geoserver. The results are appropriate with the research objectives.