Aller au contenu
FreeSoft Hub

QGIS Desktop

Publié par QGIS Development Team

A Geographic Information System

Open sourceGPL-2.0-or-later

Certaines parties de cette page apparaissent dans la langue dans laquelle elles ont été écrites, car la traduction n'est pas terminée.

Points clés

  • Reads vector and raster formats including Shapefile, GeoPackage, GeoJSON and GeoTIFF, and connects to PostGIS and SpatiaLite.
  • Consumes OGC web services (WMS, WMTS, WFS) and XYZ tile layers as background or working layers.
  • Styling by single symbol, category, graduated class or expression-based rules, with configurable labelling.
  • Processing toolbox exposes native, GDAL and GRASS algorithms under one interface; the model designer chains them into workflows.
  • Print layouts with legends, scale bars and north arrows, and atlas output producing one map per feature of a coverage layer.

À propos de cette application

QGIS is a desktop geographic information system for viewing, editing and analysing spatial data. It reads vector formats such as Shapefile, GeoPackage, GeoJSON and GML and raster formats including GeoTIFF, and it connects to spatial databases like PostGIS and SpatiaLite as well as to OGC services — WMS, WMTS, WFS — and plain XYZ tile layers.

Each layer is drawn by a renderer configured on it: a single symbol, categories taken from an attribute, classes graduated over a numeric range, or rules written as expressions. Labelling, the attribute table, an expression engine and a field calculator cover the tabular side. Editing supports digitising with snapping and geometry checks.

Analysis runs through the Processing toolbox, which puts native algorithms next to wrapped GDAL and GRASS GIS tools behind one dialog, while the model designer chains them into reusable workflows. Print layouts compose maps with legends, scale bars and north arrows, and an atlas iterates over a coverage layer to produce one sheet per feature. A Python console and a plugin repository extend the program.

Où l’obtenir

Linux

Nous n’hébergeons pas ce fichier, nous ne l’analysons pas et nous n’en inspectons pas le contenu. Lisez ce qu’en dit la source, puis décidez par vous-même.