You can do this by using a LayerGroup. It's a little tedious because you
must make a variant of your style for each level of detail (changing just
the MinScaleDenominator and MaxScaleDenominator) but it can be done.
I can't offer any insight on the GDAL issues though.
--
David Winslow
OpenGeo - http://opengeo.org/
On Nov 1, 2012 4:17 PM, "Stricker, Scott (IS)" <[email protected]>
wrote:
> Apologies if this is not the right forum for this question.
>
> I'm trying to setup geoserver environment for demo purposes to display
> satellite imagery such as truemarble imagery (*
> http://www.unearthedoutdoors.net/global_data/true_marble/download*<http://www.unearthedoutdoors.net/global_data/true_marble/download>
> ).
>
> I'd like to set it up as follows
> Scale > A - show one set of tiles
> Scale range < A and > B higher res set of tiles Scale range < B and > C
> even higher res set of tiles And so on.
>
> Initial thinking was to create an image pyramid so I took the high res
> (250m) TrueMarble tiles and did
>
> gdal_translate -stats -co "TILED=YES" filename new_filename
>
> because I was getting warnings
>
> Warning 1: TIFFReadDirectoryCheckOrder:Invalid TIFF directory; tags are
> not sorted in ascending order ERROR 1: MissingRequired:TIFF directory is
> missing required "ImageLength" field ERROR 1: Bogus block size; unable to
> allocate a buffer.
> ERROR 1: Bogus block size; unable to allocate a buffer.
> ERROR 1: Bogus block size; unable to allocate a buffer.
> ERROR 1: FillEmptyTiles() failed because panByteCounts == NULL
> E:\MAP_TM\A1_01_34.tif : 67584|0-->2048-2048
>
> And thought the translate would fix these issues. After translating all
> files, I did
>
> gdal_retile.py -v -levels 4 -ps 2048 2048 -targetDir E:\MAP_TM A1.tif
> A2.tif ... H3.tif H4.tif
>
> And get above errors ending with
>
> E:\MAP_TM\A1_02_82.tif : 165888|2048-->2048-2048 Warning 1:
> TIFFReadDirectoryCheckOrder:Invalid TIFF directory; tags are not sorted in
> ascending order ERROR 1: MissingRequired:TIFF directory is missing required
> "ImageLength" field ERROR 1: Bogus block size; unable to allocate a buffer.
> ERROR 1: Bogus block size; unable to allocate a buffer.
> More than 1000 errors or warnings have been reported. No more will be
> reported from now.
> E:\MAP_TM\A1_02_83.tif : 167936|2048-->2048-2048 E:\MAP_TM\A1_02_84.tif :
> 169984|2048-->2048-2048 E:\MAP_TM\A1_02_85.tif : 172032|2048-->768-2048
> E:\MAP_TM\A1_03_01.tif : 0|4096-->2048-2048
>
> .
> .
> .
> Finishing up with
>
> E:\MAP_TM\A1_32_10.tif : 18432|63488-->2048-2048 Traceback (most recent
> call last):
> File "c:\Program Files\gdal\gdal_retile.py", line 1001, in <module>
> sys.exit(main(sys.argv))
> File "c:\Program Files\gdal\gdal_retile.py", line 911, in main
> dsCreatedTileIndex = tileImage(minfo,ti)
> File "c:\Program Files\gdal\gdal_retile.py", line 349, in tileImage
> createTile(minfo, offsetX, offsetY, width, height,tilename,OGRDS)
> File "c:\Program Files\gdal\gdal_retile.py", line 494, in createTile
> dec.uly+offsetY*dec.scaleY)
> File "c:\Program Files\gdal\gdal_retile.py", line 256, in getDataSet
> data = s_band.ReadRaster( readOffsetX,readOffsetY,readX,readY,
> readX,readY, self.band_type )
> AttributeError: 'NoneType' object has no attribute 'ReadRaster'
>
> Am I doing something wrong?
>
> Can I build an 'image pyramid' data set manually? For example, configure
> geoserver to use 32km TIFF for lowest resolution 1km TIFF tiles for next
> 500m tiles for next resolution level 250m tiles for highest resolution
>
> Seems like it should be fairly straightforward - what am I missing?
>
> Thanks for any help/pointers/links that can be provided?
>
> E. Scott Stricker
>
>
>
>
>
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