Hello,
Here you can find some scripts, perhaps useful.
Thanks you for these scripts. They are really useful.
Nevertheless, I cannot get around expressing my disappointment about GRASS in this area. * I cannot just point the program to a directory of shapefiles and tell it import all. QGIS, gvSIG and ArcGIS can do this. * I cannot reproject these on the fly be changing the projection of my location. => Whenever it comes to data format conversion and reprojection people on QGIS/GRASS Maillists tend to tell the user: get your keyboard and hack something with OGR/GDAL (Re: converting .asc to .xyz, http://permalink.gmane.org/gmane.comp.gis.qgis.user/2519). In clear words this means that the software is not ready, yet. This tells me that these GIS are not made for "normal" Desktop GIS task and mapping. Maybe GRASS is good for some very specialised and automatisable tasks. But to make a beautiful and printable map from a buch of data that can be interpreted? I was trying my best to run my current project with GRASS and FOSS4G. But these have such severe usability issues that I cannot affort putting the time in. Since geographical analysis also involves data aquisition and -- later -- a interpretation I want to minimise the processing time. I am not here to rant only. I will try to update the page on usabilty (http://grass.osgeo.org/wiki/Usability) after finishing my project. But really, GIS is visual work with geoGRAPHICAL data. Why did I write disappointment? Because GRASS is advertised by OSGEO as THE most powerful free GIS that can perform any task. One must be honest and tell, that one needs to be a programmer (at least bash) and run linux and have a good visual imagination because of the non integrated GUI. The above mentioned tasks are really basic GIS tasks. Someone is devloping a GUI for OGR: * http://inventis.ca/ogr2gui/ * http://permalink.gmane.org/gmane.comp.gis.gdal.devel/16254 Hope that this will help for future tasks.
I think it is better to reproject and merge shapefiles via ogr2ogr. The very trivial task (in my experience) was to clean vector after import in GRASS. v.clean tool=rmdupl,snap,bpol
Actually, it is not really trivivial. GRASS freezes the computer when running the above mentioned command on a vector that consists of merged corine land cover tiles (number of tiles = 20). Kind regards and thanks for your help, Timmie _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
