Earlier this Last year, in June, Don Meltz wrote an interesting blogArcGIS vs QGIS Clipping Contest Rematch” where he let compete ArcGIS and Quantum GIS in a clipping contest. The benchmark contest data set in question is a 878MB ZIP file (ContourClipTest.zip with the (guessed) EPSG Code 2260 – NAD83 / New York East (ftUS)). The blog page gained a lot of comments, even from ESRI since some ArcGIS versions crashed on this test data set.

Find below the various timings compiled from the blog and the comments:

Proprietary software

Software Processing time Hardware/Software
ArcGIS 9.3 crash after 1h 9min: ERROR 999999: Error executing function. Invalid Topology [4gb file limit.] Failed to execute (Clip) unknown
ArcGIS 10.0 crash likewise unknown
ArcGIS 10.1 ESRI promise to calculate it in 34 seconds in this updated version (did anyone test?) unknown
GlobalMapper (version?) 30 mins unknown
GlobalMapper v11.02 49 sec Windows XP w/ 3.5GB RAM
Manifold 8 (64bit) 31 min Windows XP64 16 gb. RAM and 2.33 GHz

Note: The two GlobalMapper results are a bit funny, perhaps always minutes?

Free and Open Source Software

Software Processing time Hardware/Software
Quantum GIS (version?; Simple features) 4-5 min unknown
GRASS GIS 7 (topological GIS) 5 min Dell PowerEdge 2950 from 2008, Intel Xeon 2.66GHz, 8GB RAM
gvSIG to be done
PostGIS to be done

Notes: Hope volunteers will test this also on gvSIG and PostGIS (and other FOSSGIS)! Please report…

The QGIS Development Team is very pleased to announce the release of QGIS 1.6.0, the next in their development release series.

Binary and source code packages are available at:


The release announcement and changelog is available here:


Along with the release of QGIS 1.6.0, the QGIS Community Team is hard at work on an updated QGIS Users’ Guide version 1.6. The guide will be available in the near future – they will post announcements when it is available.

QGIS is a completely volunteer driven project, and is the work of a  dedicated team of developers, documenters and supporters. The team extends their thanks and gratitude to the many, many hours which people have contributed to make this release happen.

If you would like to make a donation or sponsor the project, please  visit https://www.qgis.org/en/sponsorship.html . Of course, QGIS is Free software and you are under no obligation to do so.

The new winGRASS 6.4.0RC2 is now available! It has been packaged into the OSGeo4W installer which also provides QGIS, Mapserver, GDAL and other goodies.

OSGeo4W has two modes – express and advanced:

  • “Express” gives you a short list of suggested packages to select from which have been widely tested.
  • “Advanced” gives a long detailed list of packages and subpackages including development versions and so forth. For the moment GRASS is available in the “advanced” install. After a period of testing it may be moved to the “express” section.

OSGeo4W Installer download:
Please download it and test. The wizard will guide you through the installation process.

Find GRASS in
Advanced -> … -> Select Packages
All -> Desktop -> grass & tcltk: ActiveTcl wxpython (just click to select) -> Next …

Feedback is appreciated in two “channels”:

OSGeo4W installer related issues:

GRASS related issues:

Update 24-Jan-2009: The package was fixed to support the new wxpython graphical user interface.

BTW: The OSGeo4W team is seeking a new GRASS package maintainer, we hope to find a candidate soon – please speak up.

A MS-Windows native binary of the current 6.3.0 Release Candidate 1 is now available at:
Read the README for installation, known issues and other information. This version no longer requires a n installation of Cygwin.

The QGIS team announces the release of QGIS 0.9.0 (the package for MS-Windows contains GRASS 6.3.0RC1). The QGIS team offers also packages for Linux and MacOSX.