[GRASS5] floating AI ASCII GRID import

Maciek Sieczka werchowyna at pf.pl
Mon Nov 29 15:31:54 EST 2004

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.


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