Aplicação web de um sistema de informação geográfica (SIG) com OpenLayers: um estudo de caso e aprimoramento na plataforma Sobral em Mapas

Abstract

Publishing geospatial data on public portals demands solutions that balance performance, reliability, and low coupling across system layers. Focusing on the Municipality of Sobral, this study evaluates and enhances the implementation of the OpenLayers library within “Sobral em Mapas,” a municipal WebGIS whose front end is implemented with this library and interacts with a Laravel back end integrated with GeoServer for OGC services and PostGIS data. The refined architecture comprises thematic layers, vector drawing and editing tools, and a custom map export module with server-side request intermediation. In an applied evaluation, the system delivers smooth navigation, responsive spatial queries, and cartographic consistency across client and server, evidencing the efficiency of OpenLayers for municipal geospatial data consumption and interaction. The results support the feasibility of an open-source stack for government WebGIS, highlighting flexibility, cost reduction, and standardized integrations. Future work includes scale-aware cartographic printing, expanded spatial analytics, and usability optimization for mobile devices.