[gdal-dev] What to archiv when using gdal_translate -co TILED=YES

APM apschwimmer at apmland.de
Thu Sep 24 09:56:07 PDT 2020


Dear all,


I want to create a geotiff which has 2GB size at the end.

Further I used the option -co TILED=YES and the compression LZW.

Unfortunately a program breaks after opening the map.

Qgis need some time, but show the map.

What does Tiled=YES?

Should it "break" the file in 'handsome" segments to make it loadable in 
the pc ram similar to tiles in web services?

Make it sense to add a block size?


Can I change the file to another tif format and compress it with jpeg?


gdalinfo for a .vrt which I like to compress:


Coordinate System is:
PROJCRS["ETRS89 / UTM zone 32N",
     BASEGEOGCRS["ETRS89",
         DATUM["European Terrestrial Reference System 1989",
             ELLIPSOID["GRS 1980",6378137,298.257222101,
                 LENGTHUNIT["metre",1]]],

.

.


Band 1 Block=128x128 Type=Byte, ColorInterp=Palette
   Color Table (RGB with 256 entries)
     0: 255,255,255,255
     1: 255,255,255,255
     2: 255,255,255,255
     3: 191,230,230,255
     4: 153,255,179,255
     5: 230,255,204,255
     6: 191,242,128,255

.

Thank you very much for your help!


Kind regard


Piet



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