Hello Achim... Not really. It didn't work Let me start from the beggining: 1- My orioginal raster file has the following: | Type of Map: raster Number of Categories: 11 | | Data Type: CELL | | Rows: 5381 | | Columns: 4481 | | Total Cells: 24112261 | | Projection: UTM (zone -24) | | N: 9659623.5017993 S: 8045266.26306668 Res: 300.01063719 | | E: 1077874.87767815 W: -266394.50364563 Res: 299.993167 | | Range of data: min = 1 max = 11 | It's a landcover map
2- I convert to vectorusing the following expression r.to.vect -v input=teste01_l...@regional output=teste05 feature=area and it returns: Extracting areas... Building topology for vector map <teste05>... Registering primiti 907000907256 primitives registered 3527832 vertices registered Building areas... 321179 areas built 85875 isles built Attaching islands... Attaching centroids... Number of nodes: 671952 Number of primitives: 907256 Number of points: 0 Number of lines: 0 Number of boundaries: 586103 Number of centroids: 321153 Number of areas: 321179 Number of isles: 85875 Number of areas without centroid: 26 r.to.vect complete. My vector is: |----------------------------------------------------------------------------| | Type of Map: vector (level: 2) | | | | Number of points: 0 Number of areas: 321179 | | Number of lines: 0 Number of islands: 85875 | | Number of boundaries: 586103 Number of faces: 0 | | Number of centroids: 321153 Number of kernels: 0 | | | | Map is 3D: No | | Number of dblinks: 1 | | | | Projection: Universal Transverse Mercator (zone 0) | | N: 9659623.5017993 S: 8045266.26306668 | | E: 911978.65632755 W: -266394.50364563 | | | | Digitization threshold: 0 | | Comments: | | | +----------------------------------------------------------------------------+ this is a vector composed by areas (as far as I wanted and I believe) 3- I reduced the region in order to export just a piece 4- I exported but, when I open it in QGIS I get an empty vector file 5- Then again: v.out.ogr -c input=test...@regional type=area dsn=c:\teste07.shp Exporting 321179 areas (may take some time)... And after 20 minutes it seems freezed It this too much polygons? On Fri, Nov 12, 2010 at 9:06 AM, Achim Kisseler <[email protected] > wrote: > > > Am 12.11.2010 09:40, schrieb Luis Lisboa: > > The problem is that, I left it this night processing and, when I returned >> it has freezed. So, v.out.ogr is not being able to export vector files >> produced by r.to.vect... As I said, maybe it's related with some option in >> r.to.vect that is messing this up. Or something related with tables. >> >> Can anyone give me some tips on this? >> > > I guess it freezes because it uses so much memory. > > Please check if v.out.ogr works with a small vector map. E.g. shrink region > before r.to.vect or choose only some features from the vector map to export. > > ? > > Achim > >> >> Thanks >> >> Luis >> >> >> ...that´ll be a HUGE vector file! >>> So it´s normal, that it takes some minutes. >>> >> >> >> On Thu, Nov 11, 2010 at 3:08 PM, Luis Lisboa <[email protected] >> <mailto:[email protected]>> wrote: >> >> Greetings >> >> I have produced a vector map (with r.to.vector) with the following >> metadata: >> v.info <http://v.info> test01 >> >> >> >> +----------------------------------------------------------------------------+ >> | Layer: teste01 >> | >> | Mapset: Regional >> | >> | Location: Country >> | >> | Database: E:\v3 >> | >> | Title: >> | >> | Map scale: 1:1 >> | >> | Map format: native >> | >> | Name of creator: orbit >> | >> | Organization: >> | >> | Source date: Tue Nov 09 11:11:40 2010 >> | >> >> >> |----------------------------------------------------------------------------| >> | Type of Map: vector (level: 2) >> | >> | >> | >> | Number of points: 0 Number of areas: >> 213680 | >> | Number of lines: 0 Number of islands: >> 73649 | >> | Number of boundaries: 348770 Number of faces: >> 0 | >> | Number of centroids: 213666 Number of kernels: >> 0 | >> | >> | >> | Map is 3D: No >> | >> | Number of dblinks: 1 >> | >> | >> | >> | Projection: Universal Transverse Mercator (zone 0) >> | >> | N: 8832707.83027649 S: 7028073.62772369 >> | >> | E: 1347458.42001915 W: 200792.5777576 >> | >> | >> | >> | Digitization threshold: 0 >> | >> | Comments: >> | >> | >> | >> >> >> +----------------------------------------------------------------------------+ >> >> >> Now I'm trying to export it to SHAPEFILE but, after 10 minutes the >> processing bar is not even in 40%. What might be happening? I mean, >> is it some error with the vector or when I convert to vector (from >> raster)? Because, taking more than 10 minutes to export to vector >> it's not normal (I guess) and taking nearly 7 min to convert to >> vector also... >> >> Thanks for the reply >> Luis L >> >> >> >> >> _______________________________________________ >> grass-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/grass-user >> >
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