[GRASS5] floating AI ASCII GRID import
Frank Warmerdam
warmerdam at pobox.com
Mon Nov 29 16:22:33 EST 2004
Maciek Sieczka wrote:
> From: "Michael Barton" <michael.barton at asu.edu>
> Sent: Monday, November 29, 2004 5:56 PM
> Subject: Re: [GRASS5] floating AI ASCII GRID import
>
>
>> I haven¹t had a chance to test this to see if r.in.gdal is the same as
>> r.in.arc. If it is, I agree completely that we need eliminate redundancy
>> where possible. Perhaps Maciek can test it as he seems to have a set
>> of AI
>> ASCII grid files he is working with now. Let me know if it is redundant
>> and
>> I¹ll take it off the input menu.
>
>
> The problem is that GDAL may round the floating AI ASCII GRID to integer.
> Below is what Frank Warmerdam once wrote on the gdal-list. Frank, is it
> still not fixed? BTW - what is the chance that GDAL could be thought to
> recognize if the AI AGRID is FCELL or DCELL?
>
> From: "Frank Warmerdam" <warmerdam at pobox.com>
> Sent: Tuesday, June 01, 2004 2:59 PM
> Subject: Re: [Gdal-dev] floating point bug
>
>> This is already a known issue in bug:
>> http://bugzilla.remotesensing.org/show_bug.cgi?id=313
>> Basically I scan the first 1K or so of the file to look for floating
>> point
>> values.
>> If I don't find any I assume the whole coverage is integer.
>> I have been hesitant to "fix" this as a proper fix would seem to require
>> scanning the whole file on open which is pretty expensive.
Maciek,
This is still an open issue.
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
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