QGIS es un software SIG principal en el Laboratorio de Geografía Experimental y Aplicada

Introducción

Laboratory on Experimental and Applied Geography (LEAG) is part of College of Hotel and Business Management, Ltd. In Brno, Czech Republic (Vysoká škola obchodní a hotelová, s.r.o.) which offers higher education at tourism, business and hotel management. LEAG is focused on modeling socio-economic spatial processes, analyzing spatial patterns, describing and monitoring the reality of localities and regions.

QGIS while modeling 3D objects

QGIS mientras se modela objetos 3D (interpolación), análisis de terreno

LEAG plays important role in academic research held in College of Business and Hotel Management. The need of spatial modeling requires also excellent software. The philosophy of minimum cost and maximum efficiency led to choice of open source solutions. This step resulted in using core open source SW such as LibreOffice, GIMP, Inkscape and QGIS. QGIS does not stand alone –– we use MapWindow, OpenJump, gvSIG, SAGA and others. But QGIS plays the major role.

Uso de QGIS

QGIS is the leading software and stands in current versions (because of the “experimental” character of LEAG we are using the latest unstable releases instead of LTS versions) for several reasons:

  • Interfaz Gráfico de Usuario (cercano a los productos comerciales)
  • Desarrollo rápido e integración de características pedidas por el usuario
  • Estabilidad e interoperabilidad (estamos usando plataformas Windows y Ubuntu Linux)
  • Otros (mencionado por ej. en el estudio de caso escrito por Dr. Horst Düster)

El análisis espacial se hace principalmente usando funciones básicas de geoprocesamiento y complementos basados en Python. Los proyectos recientes en que QGIS se usó:

  • Modelando patrones entre la ubicación espacial y habitantes
  • Creando modelos 3D para visualización de terreno (y uso posterior como relieve sombreado)
  • Almacenamiento, creación y edición de base de dato de empresas pequeñas y medianas (+ visualización posterior)
  • Homogenizing of free-to-use geodata and creation of “geo-data-bank” for students and researchers at College of Business and Hotel Management

Se usa QGIS en sinergia con otros productos código abierto. Por ejemplo el diseño final se crea mayormente usando Inkscape o GIMP (menos en LibreOffice Draw). Los mapas basados en web son editados usando Inkscape (después de exportación SVG) y los mapas ráster son pre-editados usando GIMP.

QGIS is also great educational tool. College of Business and Hotel Management offers students subjects like “Geographical Information Systems I. and II.” or “Selected chapters from geoinformatic literacy” where QGIS is used as main platform for teaching students how to use GIS and how to produce high-quality maps. Recently, the QGIS was used as main product during GIS Day held at our school on November 2010.

Using diagrams comparing population between two censuses

Usando diagramas para comparar población entre dos censos

Conclusión

With no cost and high efficiency the Laboratory on Experimental and Applied Geography produces high-quality analysis, maps and visualizations. Using QGIS large databases are being created and further testing of new functions are being done. Finally, one of the highest impact of using QGIS could be seen in education — QGIS is the first software, which is presented to students. During regular workshops students learn how to legally work with QGIS and how to create their own maps.

Autor

Using diagrams comparing population between two censuses

Jakub Trojan

This article was contributed in November 2010 by Jakub Trojan. He is an academic researcher at College of Business and Hotel Management, Ltd. (Brno, CZ) where he founded and leads Laboratory on Experimental and Applied Geography. He is also a doctoral student at Institute of Geography, Faculty of Science, Masaryk university (Brno, CZ).