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29 lines
1.4 KiB
Text
29 lines
1.4 KiB
Text
Important Drivers Restrictions :
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* PGCHIP driver is currently under development which means it has NOT been fully tested and no stable release is downloadable.
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* The driver only supports GDT_Byte and GDT_UInt16 datatypes and deals with 1 or 4 bands (GREY_SCALE, PALETTE and RGBA)
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* The column name for the chip is not yet changeable and is "raster" by default
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* In order to specify the database you want to connect to, you have to give a connection string. The differents connection parameters (host,port,dbname) must be delimited with a "#" character. The name of the Postgis layer should be given at the end of the string after a "%layer=" argument. Example :
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$ gdalinfo PG:host=192.168.1.1#dbname=mydb%layer=myRasterTable
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How can I test the driver :
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* You can choose to build your own application using the GDAL API or use the utility programs.
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* Some examples with gdal_translate :
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Import BMP raster :
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gdal_translate -of pgchip /DATA/myRaster.bmp PG:host=192.168.1.1#dbname=mydb#port=5432%layer=myRaster
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Then export to PNG :
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gdal_translate -of png -ot UInt16 PG:host=192.168.1.1#dbname=mydb#port=5432%layer=myRaster /DATA/myRaster.png
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Author information and bug report :
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website : http://simon.benjamin.free.fr/pgchip/
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email : noumayoss@gmail.com
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