Welcome to GEOG 585 – Open Web Mapping

October 3, 2017

Welcome to GEOG 585 – Open Web Mapping

Geography 585: Open Web Mapping is a 10-week online course that gives you experience with sharing geographic information on the Internet using free and open source software (FOSS) and open specifications. It is an elective course in Penn State’s online geospatial education programs, including the Master of Geographic Information Systems. The lessons are freely visible online as open courseware; however, if you would like to receive official credit for the course and complete the lessons with instructor and peer feedback, you should register for the course through the Penn State World Campus.


Walkthrough: Getting source data from OpenStreetMap

October 3, 2017

Walkthrough: Getting source data from OpenStreetMap

Getting data out of OpenStreetMap (OSM) presents more technical challenges than putting data into OSM. When you put data into OSM, you can use your choice of a number of different types of editors. You can use any tags that you want, attempting to stick to tagging conventions of course.

[ OSM ] – Get the building housenumber from OSM data

October 3, 2017

[ OSM ] – Get the building housenumber from OSM data


Using R as a GIS

September 26, 2017

Using R as a GIS

Tangible Landscape – An open source tangible interface for GRASS GIS

September 26, 2017

Tangible Landscape – An open source tangible interface for GRASS GIS

Imagine being able to hold a GIS in your hands, feeling the shape of the earth, sculpting its topography, and directing the flow of water. We present Tangible Landscape, an open source tangible interface powered by GRASS GIS. Tangible Landscape physically, interactively manifests geospatial data so that you can naturally feel it, see it, and shape it. This makes GIS far more intuitive and accessible for beginners, empowers geospatial experts, and creates new exciting opportunities for developers – like gaming with GIS.


QGIS new style: flow map arrows

September 26, 2017

QGIS new style: flow map arrows

How to use QGIS in a great way? Try and follows the Anita Graser post about the new style…

Flow maps

September 26, 2017

Flow maps are a special type of network visualization for object movements, such as the number of people in a migration. A typical flow map, which contains one source and multiple targets, is visualized as a flow-style tree overlaid on top of a map.

Flowmap – A software package dedicated to analyzing and displaying interaction or flow data

September 26, 2017

Flowmap is a software package dedicated to analyzing and displaying interaction or flow data. This type of data is special in the sense that there are two different geographic locations connected to each data item: an origin location where the flow starts and an destination location where the flow ends. The flow data itself can consist of people (e.g. commuters, shoppers, hospital visitors), goods, usage of agricultural services or telecommunication and so on.

However, most thematic mapping and GIS packages have little functionality for treating this kind of information. Now Flowmap fills this gap. Flowmap is a PC software package (Windows 95/98/2000/ME/XP and will in most cases also work within Windows Vista and Windows 7), developed at the Faculty of Geosciences of the Utrecht University in the Netherlands.

Landserf – a GIS for the visualisation and analysis of surfaces

September 26, 2017

LandSerf is a freely available Geographical Information System (GIS) for the visualisation and analysis of surfaces. Applications include visualisation of landscapes; geomorphological analysis; gaming development; GIS file conversion; map output; archaeological mapping and analysis; surface modelling and many others. It runs on any platform that supports the Java Runtime Environment (Windows, MacOSX, Unix, Linux etc.)


  • Handles multiple surface models – raster digital elevation models (DEMs), vector Triangulated Irregular Networks (TINs), contours and metric surface networks (MSNs).
  • Interactive 3D viewing and ‘flythrough’ of surfaces on platforms that support OpenGL.
  • A range of powerful and interactive visualisation techniques including lighting/shade models, multiple image blending and dynamic graphical query.
  • Raster and vector transformation including image rectification and map projection.
  • Multi-scale surface processing based on quadratic regression.
  • Fractal and polynomial surface generation for modelling and simulation.
  • Multi-scale parameter and feature extraction (slope, aspect, curvature etc.).
  • Import and export of common raster and vector formats.
  • Integration with Garmin GPS receivers.

Infraestructura de Datos Espaciales de Espana

September 21, 2017

Infraestructura de Datos Espaciales de Espana

Visualización de cartografía e imágenes de diferentes fuentes de forma interoperable e interactiva.

Catálogo de datos y servicios
Búsqueda de datos geográficos y servicios web de información geográfica.
Nombres Geográficos
Búsqueda de topónimos y de su localización geográfica.
Centros de descarga
Centros de descarga de datos geográficos disponibles en España.