Re: [gdal-dev] Help requested: Concurrent read of a GeoTiff

2017-03-16 Thread Grégory Bataille
no luck. I tried this config. I also tried (with this config) to do a copy of the vrt file (with shell utility, not gdal) in each thread before opening it (still goes to the same TIFF file though), but no luck. But at least now that you confirm that it's related to concurrent reads, I have somethi

Re: [gdal-dev] [GRASS-user] Slow import of GHSL

2017-03-16 Thread Markus Neteler
On Mar 16, 2017 11:26 AM, "Nikos Alexandris" wrote: ... >>> unfortunately, because I don't have a lot of free space :-/ >> >> >> maybe because you forgot the enable compression ;-) > > > I should! Remember that you have to explicitly switch on the NULL compression: https://grass.osgeo.org/grass

Re: [gdal-dev] GeoPackege, views and spatial index

2017-03-16 Thread Even Rouault
On jeudi 16 mars 2017 21:45:09 CET Rahkonen Jukka (MML) wrote: > Hi, > > I can create a spatial view into GeoPackage database by following the > document http://www.geopackage.org/modeling_guidelines.html and I can open > such a view with QGIS. But have I understood right that there is no way in >

[gdal-dev] GeoPackege, views and spatial index

2017-03-16 Thread Rahkonen Jukka (MML)
Hi, I can create a spatial view into GeoPackage database by following the document http://www.geopackage.org/modeling_guidelines.html and I can open such a view with QGIS. But have I understood right that there is no way in GeoPackage to link the R-Tree spatial index of the main table with the

Re: [gdal-dev] Gdal Java - Translate creates indestructible file

2017-03-16 Thread Vlad
My bad, was trying to save a variable declaration. Thanks. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Gdal-Java-Translate-creates-indestructible-file-tp5312723p5312726.html Sent from the GDAL - Dev mailing list archive at Nabble.com. __

[gdal-dev] Gdal Java - Translate creates indestructible file

2017-03-16 Thread Vlad
Almost indestructable. Making a .png thumbnail... public String produceThumbnail(Dataset ds, Path tempPath) { Vector optionsVector = new Vector<>(); optionsVector.add("-of"); optionsVector.add("PNG"); optionsVector.add("-outsize"); optionsVector.add("128");

Re: [gdal-dev] Help requested: Concurrent read of a GeoTiff

2017-03-16 Thread Even Rouault
On jeudi 16 mars 2017 18:45:03 CET Grégory Bataille wrote: > Does that mean a different vrt file or simply reopen the file to create a > gdal object in each process. Because I'm reopening the vrt file in each > thread Ah, that must be issue of http://gdal.org/gdal_vrttut.html#gdal_vrttut_mt Try d

Re: [gdal-dev] Help requested: Concurrent read of a GeoTiff

2017-03-16 Thread Grégory Bataille
Does that mean a different vrt file or simply reopen the file to create a gdal object in each process. Because I'm reopening the vrt file in each thread On Thu, 16 Mar 2017 at 17:23, Even Rouault wrote: > On jeudi 16 mars 2017 17:16:20 CET Grégory Bataille wrote: > > > Hello all, > > > > > > Re

Re: [gdal-dev] Gdal Java - Translate creates indestructible file

2017-03-16 Thread Even Rouault
> Is it possible the Translate() method is not closing a Stream somewhere? Absolutely, it returns a valid Dataset object, and thus (on Windows, you are on Windows I guess), you need to close it with .delete() explicitly to release the file handle it owns. Even -- Spatialys - Geospatial profe

Re: [gdal-dev] Help requested: Concurrent read of a GeoTiff

2017-03-16 Thread Even Rouault
On jeudi 16 mars 2017 17:16:20 CET Grégory Bataille wrote: > Hello all, > > Reaching out to the community caused I have failed for the past few days. > > *short version*, I'm trying to multithread the gdal2tiles utility, and I'm > getting this > > Generating Base Tiles: > ERROR 1: LZWDecode:Wron

Re: [gdal-dev] Transformation of a vertical datum

2017-03-16 Thread Even Rouault
On jeudi 16 mars 2017 16:57:11 CET OpenDEM wrote: > Hi, > > > > I would like to transform the vertical datum EPSG:5730 to EPSG:5621 > > > > For more information about the European height reference systems have a look > at: http://www.crs-geo.eu/ > > > > I used gdaltransform, but the z valu

[gdal-dev] Help requested: Concurrent read of a GeoTiff

2017-03-16 Thread Grégory Bataille
Hello all, Reaching out to the community caused I have failed for the past few days. *short version*, I'm trying to multithread the gdal2tiles utility, and I'm getting this Generating Base Tiles: ERROR 1: LZWDecode:Wrong length of decoded string: data probably corrupted at scanline 256 ERROR 1:

[gdal-dev] Transformation of a vertical datum

2017-03-16 Thread OpenDEM
Hi, I would like to transform the vertical datum EPSG:5730 to EPSG:5621 For more information about the European height reference systems have a look at: http://www.crs-geo.eu/ I used gdaltransform, but the z value is not changing: The CRS is identical EPSG:3035: ETRS89 European Lamb

Re: [gdal-dev] [GRASS-user] Slow import of GHSL

2017-03-16 Thread Nikos Alexandris
[..] Nikos: Some messy rough timings: 1) i7, 8 cores, 32GB RAM, Base OS: CentOS -> Three r.in.gdal processes for "p2.tif", each stuck at 3% for almost 14h 2) Xeon, 24 Cores, 32GB RAM, Base OS: Windows -> Three gdal_translate processes with -projwin, the VRT file as an input and GeoTIFF as outpu