Hi Christian, Thanks for your reply and thanks for writing gdal_retile. I use it a lot and it works great.
I'm not sure I understand you well. On the highest level of the pyramid (the top) there's only one file. Gdal_retile already created the files needed for the mosaic (shp, shx, dbf and prj). Would you like me to re-create them ? Or do you mean at the base of the pyramid ? Alain Christian Müller wrote: > > Hi, Christian speaking, I wrote the gdal_retile.py utility. > > Could you try to run a gdal_merge.py on the highest pyramid level > containing > this strange area. What is the result.? I want to know if the problem is > gdal_retile.py or geoserver. > > > > acangi writes: > >> >> Hello list, >> >> I created a pyramid of aerial photos using gdal_retile.py and now see >> there >> are strange zones in the pyramid. I'm trying to understand why I got this >> strange results and how I can fix it (Bombing the area to make sure it >> looks >> like what I have ?). Description : >> 1. The command I used was gdal_retile.py -targetDir pyramid/ -levels 12 >> -pyramidOnly -v -s_srs /path/to/prjs/3812.prj -ps 10000 10000 -r bilinear >> -co "TILED=YES" -co "COMPRESS=LZW" -co "INTERLEAVE=PIXEL" -tileIndex >> orthocol -tileIndexField location /path/to/source/files/*.tif & >> 2. In the source files, I see nothing special. The tiles in this area >> look >> like the other ones. >> 3. On the first (generated) level of the pyramid, I see a small area >> (alias >> SMALL_SQUARE : 256m x 256m) in blue : >> http://n2.nabble.com/file/n3470903/BlueSquare.jpg >> 4. On the next levels of the pyramid, a black rectangle 512m x 256m is >> now >> visible where SMALL_SQUARE was : >> http://n2.nabble.com/file/n3470903/BlackRect.jpg >> and the area corresponding to the first level tile containing >> SMALL_SQUARE >> (alias BIG_SQUARE : 10000m x 10000m) is in green : >> http://n2.nabble.com/file/n3470903/GreenSquare.jpg >> 5. I view the pyramid in geoserver, the tiles look like they are on disk, >> except at the first level, geoserver doesn't show me the full >> SMALL_SQUARE, >> only parts of it. In geoserver logs, I find nothing very interesting, it >> all >> looks the same whether or not I'm looking at BIG_SQUARE. >> 6. If I set OutputTransparentColor to #000000 (the background color), >> BIG_SQUARE is now invisible (in geoserver) >> >> So, my questions are : >> Why did it happen ? I suppose it's just a random error... >> How can I fix it ? Is there any way other than rebuilding the whole >> pyramid >> ? >> >> Any idea is welcome, >> >> Alain >> -- >> View this message in context: >> http://n2.nabble.com/Flashy-colors-in-a-pyramid-tp3470903p3470903.html >> Sent from the GDAL - Dev mailing list archive at Nabble.com. >> _______________________________________________ >> gdal-dev mailing list >> gdal-dev@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/gdal-dev > > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > > -- View this message in context: http://n2.nabble.com/Flashy-colors-in-a-pyramid-tp3470903p3471888.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
