[Gdal-dev] "gdalinfo --formats" output

[Frank Warmerdam]

Mateusz Loskot wrote:
> Daniele Romagnoli wrote:
>> Hi list,
>>  
>> when using the command "gdalinfo --formats"
>> it returns a sequence of supported formats, as well as the specific
>> driver capabilities which are symbolized by some initials: (ro), (rw)
>> and (rw+).
>>
>> I think that (ro) means readonly while (rw) means read-write capabilities
>>  
>> If I'm right, what is the difference between (rw) and (rw+)?
>>  
>> The difference is related to Create and CreateCopy methods?
> 
> Yes, that's the difference.
> ro - read-only dataset support
> rw - create support (Create)
> rw+ - create copy support (CreateCopy)

Daniele / Mateusz,

A slight variation on this.

ro is read-only
rw is read or write (ie. supports CreateCopy)
rw+ is read, write and update (ie. supports Create)

Best regards,
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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