Performance threshold of the interactive raster map presentation — as illustrated with the example of the jQuery Java Script component

The purpose of the present work was to determine at what size of the raster file the effective performance threshold of the map application will be exceeded, which will cause difficulties in browsing the map, resulting from, for instance, a prolonged loading time of the screen in the browser window, or from the less-than-smooth running of the application. Five model versions of the web application, differing in the size of the raster maps, were tested for performance. Applications were created using the Mapbox component: Zoomable jQuery Map. The performance of the application composed of all the raster maps, superimposed one upon another, has been assumed as the benchmark for measurements. The soil and agricultural map, created using the QGIS software, served as the raster base. Performance tests were conducted in an informal manner, using selected web applications. The values of performance indicators – Yslow and PageSpeed Score – were analysed, along with the loading time of the application in the browser window. In conclusion, it was shown that the loading time of the application in the browser window must not be equated with its general performance.