Hi Jukka,
Just like with the one that Simone linked to, when I try and run
gdal_merge.py I get a python error:
C:\Users\jmou1\Desktop\release-1600-x64-gdal-mapserver\bin\gdal\python\scripts>
*g*
*dal_merge.py*
Traceback (most recent call last):
File
"C:\Users\jmou1\Desktop\release-1600-x64-gdal-mapserver\bin\gdal\python\s
cripts\gdal_merge.py", line 36, in <module>
import gdal
File
"C:\Users\jmou1\Desktop\release-1600-x64-gdal-mapserver\bin\gdal\python\g
dal.py", line 2, in <module>
from osgeo.gdal import deprecation_warn
File
"C:\Users\jmou1\Desktop\release-1600-x64-gdal-mapserver\bin\gdal\python\o
sgeo\__init__.py", line 21, in <module>
_gdal = swig_import_helper()
File
"C:\Users\jmou1\Desktop\release-1600-x64-gdal-mapserver\bin\gdal\python\o
sgeo\__init__.py", line 17, in swig_import_helper
_mod = imp.load_module('_gdal', fp, pathname, description)
ImportError: DLL load failed: %1 is not a valid Win32 application.
gdal_edit.py gives me the same.
gdalinfo etc works, it's just the python stuff that doesn't.
Kind Regards,
Jonathan
On 26 November 2013 12:32, Rahkonen Jukka <jukka.rahko...@mmmtike.fi> wrote:
> Hi,
>
>
>
> If you are on Windows 64-bit and don’t need Python nor Oracle, use this:
>
>
> http://gisinternals.com/sdk/Download.aspx?file=release-1600-x64-gdal-mapserver.zip
>
>
>
> Installation is like with FWTools: unzip. Go to installation directory,
> run “sdkshell” or perhaps “sdkshell hideoci”.
>
> This is for sure problem free and good to have always on all your
> computers.
>
>
>
> For Python v. 2.7 and Oracle I have installed
>
>
> http://gisinternals.com/sdk/Download.aspx?file=release-1600-x64-gdal-mapserver\gdal-110-1600-x64-core.msi
>
>
> http://gisinternals.com/sdk/Download.aspx?file=release-1600-x64-gdal-mapserver\GDAL-1.10.0.win-amd64-py2.7.msi
>
>
> http://gisinternals.com/sdk/Download.aspx?file=release-1600-x64-gdal-mapserver\gdal-110-1600-x64-oracle.msi
>
>
>
> I have not yet studied the environment settings, I just open the GDAL
> command window that appears into Start menu after msi installation and used
> python tools with absolute paths like
>
> c:\python27\python C:\GDAL_dev\bin\gdal\python\scripts\gdal_edit.py
> [parameters]
>
>
>
> -Jukka-
>
>
>
> Jonathan Moules wrote:
>
>
>
> Hi Jukka,
>
> I've tried that one before. First there's the fact there are far too many
> options and I can never be sure I'm getting the right thing (the page
> assumes a significant level of knowledge about what package is what).
> Second the python scripts (i..e. gdal_merge.py) don't work "out of the box"
> and it's non-obvious how to fix that (I just noticed there are also "GDA:
> python bindings" extension things, but just done that and it still doesn't
> work so... :-S ).
>
>
>
> For ease of use I prefer http://fwtools.maptools.org/ - except that it
> seems to be an outdated version of GDAL (so I'm hitting some GDAL bugs
> there) and has an issue with batch files too.
>
>
>
> And the QGIS version comes with all manner of environmental variable
> issues that stop it from working stand-alone for me.
>
> I think I may have tried the version that comes with FME too, but similar
> issues.
>
>
>
> GDAL is a powerful tool, but as I've learnt to expect from command-line
> software, it's not easy to install/use. :-(
>
>
>
> Regards,
>
> Jonathan
>
> On 26 November 2013 11:27, Rahkonen Jukka <jukka.rahko...@mmmtike.fi>
> wrote:
>
> Hi,
>
>
>
> What exactly is wrong with the builds from http://gisinternals.com/sdk/?
> I have been using them for years with good success.
>
>
>
> -Jukka Rahkonen-
>
>
>
> Jonathan wrote:
>
>
>
> Thanks for the replies. My other problem is that I don't have a good GDAL
> install (precompiled for windows). Every one I've tried has been
> buggy/non-functional in some critical way (typically environmental variable
> issues). I tried creating a nice little batch file to do everything at once
> in sequence for each raster, but alas that didn't work out so its "do
> things manually".
>
> I'll have to do some more testing.
>
>
>
> Thanks,
>
> Jonathan
>
>
>
> On 22 November 2013 18:58, Even Rouault <even.roua...@mines-paris.org>
> wrote:
>
> Le vendredi 22 novembre 2013 19:18:56, Rahkonen Jukka a écrit :
>
> > Hi,
> >
> > I think that the reason is that is is hard/impossible to make an optimal
> > deflate compressed tiff when gdal_merge goes through the circle "open
> file
> > - add data - close file". There are other alternatives to test: - You can
> > use a non-optimal deflate compressed tiff as a temporary file - is is
> > lossless and the final result will be identical. - Use gdalbuildvrt for
> > making an interim .VRT file and convert that to final product instead of
> > using gdal_merge.py. Perhaps GDAL can make an optimal deflate compressed
> > image from the VRT file with one run.
> >
> > A hint: If you play with big datasets and deflate compressed images GDAL
> > sometimes does not guess when it should jump into BigTIFF. Give the -co
> > bigtiff=yes parameter manually if you feel that it could be needed.
> >
> > If Even is still sneaking here he can say if the behaviour you see with
> > gdal_merge.py is expected or a bug. Otherwise you can ask it from
> gdal-dev
> > mailing list.
>
> I'm not sure which gdal_merge behaviour Jukka is refering too, but indeed
> it
> might not be the appropriate tool to mosaic stuff into a compressed
> geotiff due
> to the way it operates (it can have to do uncompression / recompression
> cycles
> that will waste space in the geotiff). gdalbuildvrt to do the mosaicing
> (without a disk footprint of only a few bytes) followed by gdal_translate
> to
> compress will lead to the optimal file size.
>
>
> >
> > -Jukka-
> >
> > ________________________________
> > Jonathan Moules wrote:
> >
> > On 21 November 2013 21:23, Rahkonen Jukka
> > <jukka.rahko...@mmmtike.fi<mailto:jukka.rahko...@mmmtike.fi>> wrote: I
> > would try if it makes difference to save result from gdal_merge first
> into
> > uncompressed tiff and compress it with deflate in a separate run.
> >
> >
> > Yep, that worked. Although that's unfeasible for the full dataset; I
> don't
> > have enough diskspace for an uncompressed version.
> >
> > Also, doing that (deflate, level 9), the tiled version was about 15%
> > smaller than the untiled version.
> >
> > Thanks!
> > Jonathan
> >
> >
> > Jukka Rahkonen
> >
> > ________________________________
> > Jonathan Moules<mailto:jonathanmou...@warwickshire.gov.uk> wrote:
> >
> > It is not completely surprising. If there are no repeateable patterns in
> > the uncompressed stream, deflate can result in (a bit) larger files. You
> > might want to try with -co INTERLEAVE=BAND added to see if it improves
> > things. But generally DEFLATE is not appropriate for aerial imagery.
> >
> >
> > The "bit" larger files are typically about double the size of the
> > uncompressed one!
> >
> > I know deflate isn't as well suited, but I'm experimenting with a whole
> > bunch of different settings to see what sticks.
> >
> > ======
> >
> > I'm now trying to get the four band into GeoServer (regular GeoTIFF), but
> > it's not having it. I've created it the same way as the 3 band:
> gdal_merge
> > -q -o rgbi.tif -of GTiff -co TILED=YES -co BIGTIFF=YES -co COMPRESS=JPEG
> > -co JPEG_QUALITY=25 -co BLOCKXSIZE=512 -co BLOCKYSIZE=512 --optfile
> > tiff_list.txt (low compression for testing). No pyramids yet.
> >
> > The first thing I notice is that the 4 band is *smaller* (118MB) than
> the 3
> > band (164MB).
> >
> > The gdalinfo for the four band:
> >
> > Driver: GTiff/GeoTIFF
> > Files: rgbi.tif
> > Size is 8000, 24000
> > Coordinate System is:
> > PROJCS["OSGB 1936 / British National Grid",
> > [brevity removed]
> > Origin = (419000.000000000000000,240000.000000000000000)
> > Pixel Size = (0.125000000000000,-0.125000000000000)
> > Metadata:
> > AREA_OR_POINT=Area
> > Image Structure Metadata:
> > COMPRESSION=JPEG
> > INTERLEAVE=PIXEL
> > Corner Coordinates:
> > Upper Left ( 419000.000, 240000.000) ( 1d43'22.27"W, 52d 3'27.49"N)
> > Lower Left ( 419000.000, 237000.000) ( 1d43'22.87"W, 52d 1'50.38"N)
> > Upper Right ( 420000.000, 240000.000) ( 1d42'29.76"W, 52d 3'27.37"N)
> > Lower Right ( 420000.000, 237000.000) ( 1d42'30.39"W, 52d 1'50.26"N)
> > Center ( 419500.000, 238500.000) ( 1d42'56.32"W, 52d 2'38.88"N)
> > Band 1 Block=512x512 Type=Byte, ColorInterp=Red
> > Mask Flags: PER_DATASET ALPHA
> > Band 2 Block=512x512 Type=Byte, ColorInterp=Green
> > Mask Flags: PER_DATASET ALPHA
> > Band 3 Block=512x512 Type=Byte, ColorInterp=Blue
> > Mask Flags: PER_DATASET ALPHA
> > Band 4 Block=512x512 Type=Byte, ColorInterp=Alpha
> >
> > ----
> >
> > The GeoServer logs contain an error (WMS GetMap request):
> > 2013-11-20 17:56:07,498 ERROR [org.geoserver.ows] -
> > java.lang.RuntimeException: javax.imageio.IIOException: Unsupported Image
> > Type at
> >
> com.sun.media.jai.imageioimpl.ImageReadOpImage.computeTile(ImageReadOpImag
> > e.java:706) at
> >
> com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java
> > :904) at javax.media.jai.OpImage.getTile(OpImage.java:1129)
> > ....
> > Caused by: javax.imageio.IIOException: Unsupported Image Type
> > at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(Unknown
> > Source) at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(Unknown
> > Source) at
> >
> it.geosolutions.imageioimpl.plugins.tiff.TIFFJPEGDecompressor.decodeRaw(TI
> > FFJPEGDecompressor.java:278)
> >
> >
> > Ideally I'm looking to have one source file which can be symbolised as
> not
> > just RGB, but also as any number of false-colour possibilities.
> >
> > Any suggestions anyone? I'm stumbling into new (for me) territory here.
> >
> > Thanks,
> > Jonathan
> >
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