[Gdal-dev] Identifying spatial data files?

[Marc A. Lepage]

I'm interested in something a bit more general than GDAL.

For example, I want to be able to programmatically examine a file and
then decide which program/library is best to open and read that file's
spatial data (maybe GDAL, maybe something else).

So I want to be able to just quickly inspect a file and say "oh this is
GRD98 so I'll send it off to this GRD98 driver for reading" or "oh this
is a GeoTiff so I'll send it off to GDAL for reading". Then I send it
off to that driver/library for full opening and reading.

I can't just assume the file's type by extension since it can be
ambiguous.

I could write all this identification code myself, but I figure it's
already done by someone.

Are there MIME types for all these various spatial data files?


-----Original Message-----
From: Lennox Antoine [mailto:lxnyce at gmail.com] 
Sent: Wednesday, March 29, 2006 5:04 PM
To: Marc A. Lepage
Subject: Re: [Gdal-dev] Identifying spatial data files?

If working on windows, I can whip something up graphically pretty
quickly. It sounds like good functionality to have.

-Lennox

On 3/29/06, Marc A. Lepage <mlepage at pyxisinnovation.com> wrote:
>
>
>
> Is there a program or library which will allow me to identify an
arbitrary
> file containing spatial data that I might have? Perhaps also supply
some
> useful info about the file (telling me what's in it)?
>
>
>
> Something similar to Unix "file" command (which uses magic numbers) or
> ImageMagick's "identify" command (for images).
>
>
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