thanks for your reply, I see the subdatasets name in gdalinfo.
Q1: However how do I know the name of a tile raster if the GPKG has only one tile raster source,I want to get the name as in gpkg_contents table. Gane On Tue, May 17, 2016 at 8:49 PM, Even Rouault <even.roua...@spatialys.com> wrote: > Le mardi 17 mai 2016 17:08:32, Gane R a écrit : > > Hi all, > > > > I am using a pre-build version of gdal 2.1.0. I am able to create GeoTIFF > > to GeoPackage using gdal_translate. > > > > I see from the Geopackage specification I understand that Geopackage can > > have multiple tile sources, If so > > > > Q1: How to I add a tilesource to an exisiting geopackage from a GeoTIFF ? > > any command line or any workflow sequence will be of great help. > > This is documented at http://gdal.org/drv_geopackage_raster.html . See > APPEND_SUBDATASET=YES creation option, > possibly combined with RASTER_TABLE. > > $ gdal_translate byte1.tif out.gpkg -of GPKG -co RASTER_TABLE=table1 > Input file size is 20, 20 > 0...10...20...30...40...50...60...70...80...90...100 - done. > > $ gdal_translate byte2.tif out.gpkg -of GPKG -co APPEND_SUBDATASET=YES -co > RASTER_TABLE=table2 > Input file size is 20, 20 > 0...10...20...30...40...50...60...70...80...90...100 - done. > > > > > Q2: If a geopackage has multiple Geopackage tile raster, If I wish to > > convert any one to a geotiff how will I do ? Should I used OGR Select > layer > > or how ?? > > $ gdalinfo out.gpkg > Driver: GPKG/GeoPackage > Files: out.gpkg > Size is 512, 512 > Coordinate System is `' > Subdatasets: > SUBDATASET_1_NAME=GPKG:out.gpkg:table1 > SUBDATASET_1_DESC=table1 - table1 > SUBDATASET_2_NAME=GPKG:out.gpkg:table2 > SUBDATASET_2_DESC=table2 - table2 > Corner Coordinates: > Upper Left ( 0.0, 0.0) > Lower Left ( 0.0, 512.0) > Upper Right ( 512.0, 0.0) > Lower Right ( 512.0, 512.0) > Center ( 256.0, 256.0) > > $ gdal_translate GPKG:out.gpkg:table1 table1.tif > Input file size is 20, 20 > 0...10...20...30...40...50...60...70...80...90...100 - done. > > Even > > -- > Spatialys - Geospatial professional services > http://www.spatialys.com >
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