Hallo Frank, thanks a lot for your information, it was really helpful.
Thanks and best regards, Hans ############################################################ # G.E.O.-Consulting GmbH / Hans Mörschell # # # # Heinrichstrasse 119/8 Tel: ++43 (0) 316 - 34 85 80 - 15 # # A - 8010 Graz Fax: ++43 (0) 316 - 34 85 80 - 4 # # # # Email: [EMAIL PROTECTED] Inet: http://www.geo.co.at # ############################################################ -----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von Frank Warmerdam Gesendet: Mittwoch, 20. Juni 2007 17:00 An: MapGuide Users Mail List Betreff: Re: AW: AW: [mapguide-users] MrSID problem: RasterIO skipped foroddwindowor buffer size G.E.O.-Consulting / Hans Mörschell wrote: > Hallo Frank, > > yes, my MapGuide mapextent is based on the world file because of other > datasets in that coordinate system. > > If GDAL uses the internal georeferencing is there a way to control this > behaviour ???? Hans, There is currently no mechanism to make GDAL use worldfiles in preference to internal georeferencing in a .sid file within the MrSID driver. If you construct an XML config file to for the datasource you can override the origin and pixel size information by editing the XML. But I'm not sure how end users are expected to construct such XML config files currently. You can also construct a "GDAL virtual xml file" which wraps another dataset, and can be used to alter metadata, georeferencing, etc. With FWTools you might do something like the following: gdal_translate -of VRT your_big.sid your_big.vrt edit your_big.vrt and change the origin in the <GeoTransform> element. Then point your MapGuide/FDO datasource at your_big.vrt instead of at your_big.sid. If you are operating on whole directories, you will need to keep the .vrt files in a seperate directory. Make sure you create the .vrt's from the start in this new directory so that the .xml file will have proper relative paths to the .sid files. Best regards, -- ---------------------------------------+------------------------------------ -- I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | President OSGeo, http://osgeo.org _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
