Map portal – information

The purpose of the EO-BALP Lubuskie map portal application is to make the project’s results available in the form of a set of thematic maps for each topic.

The map portal application was developed using Leaflet, a leading open-source JavaScript library for creating interactive maps. The simplicity of the application’s architecture ensures that it is completely independent of the publishing platform.

Logo leaflet

The application should work in any modern browser that supports JavaScript, on any operating system and any type of device. It features a simple and intuitive user interface optimised for mobile devices, information on all thematic areas, links to specific topics and interactive features.

Map portal EO-BALP Lubuskie

The default map application window for the EO-BALP Lubuskie portal (web browser).

Features

The application interface consists of two main elements: the map window and a side panel that can be closed on demand (see the ‘Interface’ section below). The side panel contains all the elements needed to manipulate the displayed content. The panel can be closed at any time, in which case the map window fills the entire browser window. The interface elements adapt responsively to its size.

Below is a summary of all the features and functions of the EO-BALP Lubuskie app.

Base maps

  • Base maps built into the app:
    • OpenStreetMap topographic base map,
    • ESRI World Imagery,
    • Sentinel-2 2024 RGB orthophoto map (Lubuskie Voivodeship),
    • Sentinel-2 2024 CIR orthophoto map (Lubuskie Voivodeship),
    • Sentinel-2 2025 RGB orthophoto map, enhanced to a resolution of 1 m/pixel (for the urban areas of Zielona Góra and Gorzów Wielkopolski only),
    • shaded relief map (Lubuskie Voivodeship).
  • The OpenStreetMap layer is always displayed, regardless of the choice of base layer.

Groups of topic areas

  • Each topic has its own set of layers,
  • Only one layer can be displayed within a layer group,
  • A legend is displayed for the active layer.

Supplementary layers

  • group of administrative levels (province, counties, municipalities, landscape units, FUA),
  • a group of supplementary thematic layers:
  • the ability to display more than one layer within a group.

Map window

  • restricting the zooming and panning of the map (at all levels) to the area of the Lubuskie Voivodeship,
  • the maximum scale is approx. 1:11,000, the minimum approx. 1:2,800,000,
  • built-in zoom buttons and a button to reset the zoom to the default setting,
  • built-in linear scale,
  • a built-in numerical scale with the option to enter numerical values.

Interactive features

  • displaying the attributes of vector layers for landscape units (pop-up window),
  • measuring and displaying AGL values,
  • displaying information about the layer and links to a website dedicated to the topic.

Application interface elements

Map portal EO-BALP Lubuskie interface

Changelog

Version 1.1 (June 2026)

  • displaying the values of selected layers when clicked,
  • the addition of a group of supplementary thematic layers,
  • layer legends,
  • layer descriptions,
  • links to topics,
  • numerical scale,
  • bug fixes.

Version 1.0 (May 2026)

  • zoom/pan restrictions,
  • displaying the values of selected layers when clicked,
  • linear pitch,
  • bug fixes.

Version 0.9 (May 2026)

  • side panel features,
  • layer support,
  • layer group features,
  • reading and displaying altitude.