On Sat, 2 Feb 2008 17:44:03 +0100 "Markus Neteler" <[EMAIL PROTECTED]> wrote:
> On Feb 2, 2008 4:38 PM, Otto Dassau <[EMAIL PROTECTED]> wrote: > > Hi, > > > > I try to import a 1GB Shapefile and the geometries seem to be in a really > > bad condition. Building topology GRASS exits after 30 hours with an OUT OF > > MEMORY! error (see below). > > > > Can someone give me hint, what I could do, to import this file? Using -c or > > -f flag is no option, because I would like to use GRASS to clean the data as > > far > > as possible automatically and I wouldn't like to split the file into > > subregion, > > if I don't have to. > > > > The PC I use is a dual core 1,8MHz with 4GB RAM and 1.6GB swap. Is this > > still > > not enough or can I change something in GRASS (extend or change memory > > parameter) to finish the import? I used a svn version from yesterday. > > > > below you see parts of the 230MB log file: > > > > thanks > > Otto > > > > ############# part of logfile > > > > Projection of input dataset and current location appear to match > > Layer: schutzgebiete > > Importiere 886619 Objekte der Karte... > > WARNUNG: Area size [1.1e-05], area not imported > > WARNUNG: Area size [5.0e-06], area not imported > > WARNUNG: Area size [1.1e-05], area not imported > > WARNUNG: Area size [8.6e-05], area not imported > > WARNUNG: Area size [7.1e-05], area not imported > > WARNUNG: Area size [2.5e-05], area not imported > > WARNUNG: Area size [3.9e-05], area not imported > > WARNUNG: Area size [6.6e-05], area not imported > > [...] > > Did you enable snapping? Above micro areas may indicate > gaps and slivers. Perhaps snapping helps, e.g. > snap=0.0001 playing around with the snapping parameter was the solution to import the data. I guess you were right about gaps and slivers. thanks a lot Otto > Markus > _______________________________________________ > grass-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-dev _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
