On Friday 17 August 2007 01:54, Andreas Laggner wrote: > Good morning Dylan, > > i guess you are sleeping now but your reply seems to meet my aims very > well! I will try to reproduce your approach and catch up on GDAL and > starspan. If you have some more good hints for me feel free to write me > again :-) - I will write you if i have more questions or big success. > > Toodle-oo Andreas
Hi Andreas, Good luck with starspan, it is a great little GIS tool. I haven't used it on windows, but on linux it works very well. cheers, dylan > Dylan Beaudette schrieb: > > On Thursday 16 August 2007 04:09, Andreas Laggner wrote: > >> Moin Stefan ;-) > >> > >> i want to use the spatial data from the raster together with vector data > >> in postgis. For example: soils from buk1000 and preception from DWD 1km > >> raster or altitude/slope from DEM25m raster to analyse potentials of > >> farmland. > >> I need the values from the cells in a spatial correct topology. > >> In the year 2007 the archive did not have any solutions for raster data > >> import....... > >> > >> hasta luego Andreas > >> > >> Stephan Holl schrieb: > >>> Hello Andreas, > > > > Andreas, > > > > there are more suitable means to this end. Store your raster data in some > > GDAL-compatible format (compressed, tiled, geotiff works well), and you > > vector data in postgis. What you are trying to do is a simple operation > > for any program which can read GDAL/OGR datasources. One example is > > Starspan -- this can compute raster summaries for vector > > point/line/polygon features. > > > > I commonly use this approach to combine vector data stored in PostGIS and > > raster data stored in GRASS. > > > > Cheers, > > > > Dylan > > > >>> Andreas Laggner <[EMAIL PROTECTED]>, [20070816 - 10:43:36] > >>> > >>>> Moin PostGis users, > >>>> > >>>> i want to import huge raster datasets from ArcGis Grid or Erdas > >>>> Imagine .img to PostGis (for example DEM25 meters germany around 16 > >>>> million cells). What is the best way to do that? Found nothing in the > >>>> documentation that seems to be practical......(perhaps transform the > >>>> grid to points and import the points with the information of the > >>>> original cell size and the projection - but that seems to be > >>>> circuitous??). > >>> > >>> What are you going to achieve with that? Perhaps you could have a look > >>> at the archive of this list and search for raster data and so forth. > >>> There can be found an interesting dicussion about rasters and PostGIS. > >>> > >>> Best > >>> Stephan -- Dylan Beaudette Soils and Biogeochemistry Graduate Group University of California at Davis 530.754.7341 _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
