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PhD Student @ Ghent University: mapping soils and water table dynamics

GIS Consultant @ RealDolmen, implementing web gis systems based on mapguide/autodesk infrastructure map server

Contributor to SAGA GIS, Debian and Ubuntu GIS and the OSGEO live dvd.


Jan
11
awarded  Student
Jan
11
asked Comparing 2 vector files
Jan
11
answered Does an open source alternative to ESRI's Image Server exist?
Jan
10
answered Where can I find historic maps of city size?
Jan
10
comment Where can I find historic maps of city size?
Could you specify 'earliest possible records'. 1950, 1900, 1500, ...?
Jan
6
revised How To Convert A Set of ARC/Info ASCII .e00, .e01, .e02, etc Files Into .shp Files
added ogr2ogr syntax
Jan
6
comment What raster-based GIS systems really work?
As an avid SAGA user and with some development experience I have to add: saga is great, but not for the usecase that is asked here: big raster files. SAGA loads grids into memory completely, which makes it very fast with smaller grids, but once you start working with big grids you need 64 bit and a lot of ram.
Jan
6
answered How To Convert A Set of ARC/Info ASCII .e00, .e01, .e02, etc Files Into .shp Files
Jan
6
comment Addition and Subtraction of two TINs
Why would you want to keep your old edges? They contain no information. Only your vertices contain information. I think most software doesn't even save the edges when it saves a TIN.
Jan
5
revised Statistical relationships between rasters
added declustering info
Jan
5
answered Statistical relationships between rasters
Jan
4
comment Addition and Subtraction of two TINs
Check my addition on only interpolating the points of the triangulation.
Jan
4
revised Addition and Subtraction of two TINs
added 292 characters in body
Jan
4
answered Addition and Subtraction of two TINs
Jan
4
answered Distribution of Human Population with Altitude
Dec
22
comment How to integrate SAGA Python Modules into ArcGIS Desktop?
Please provide the code you use - if you open it people may even improve the functionality you have.
Dec
22
answered Best way to find the polygons crossed by a line
Dec
16
answered Where can I find free building height dataset for major cities around the world?
Dec
9
answered Surface distance on DEM between two coordinates
Dec
9
answered List of freely available GIS books