gdaltindex raster files (MapInfo gif + tab format)

Zhonghai Wang zhonghaiw at GMAIL.COM
Mon May 22 10:31:49 EDT 2006


Hi guys,

I get some info again from the "Raster Dat Access" document, and it
indicates that:

****
GIF: If GD is configured with GIF (OUTPUT=GIF) support, then MapServer will
also be able to read GIF files for raster layers. The only way to
georeference GIF files is with a world file.

If GD is not configured with GIF support, it may still be available in GDAL

****

Is it true that GIF raster images can only be georeferenced with a
worldfiles? TAB files are not supported?

zhonghai
On 5/22/06, Zhonghai Wang <zhonghaiw at gmail.com> wrote:
>
>  Hi guys,
>
> I've found a way to do that, like this:
>
> c:\.....rasterdata>dir /b /s tem\*.gif > index.txt
> c:\.....rasterdata>gdaltindex index.shp --optfile index.txt
>
> and this works well.
>
> but georeferencing information in the TAB file can not be found by the
> command, an error message is something like:
>
> >>>no georeferencing info is available, gdaltindex performance will be
> skipped.
>
> actually there is georeferencing info in the TAB file, for each small gif
> image there is a corresponding TAB, e.g.:
> ***
> !table
> !version 300
> !charset WindowsLatin1
>
> Definition Table
>   File "m_1_1_1000.gif"
>   Type "RASTER"
>   (5.290517,48.2308475) (1392,987) Label "Pt 1",
>   (5.25001439194036,48.25) (0,0) Label "Pt 2",
>   (5.25001439194036 ,48.211695) (0,1974) Label "Pt 3",
>   (5.33101960805964,48.25) (2784,0) Label "Pt 4",
>   (5.33101960805964,48.211695) (2784,1974) Label "Pt 5"
>   CoordSys Earth Projection 1, 104
>   Units "degree"
> ***
>
> why can it not be read by gdal?
>
> thanks a lot
>  zhonghai
>
> On 5/22/06, Mateusz Loskot <mateusz at loskot.net> wrote:
>
> > Rahkonen Jukka wrote:
> > > Very first you can try giving the full path to your images, I mean
> > > c:\...\rasterdata\tem\*.gif. Let's see what happens.
> >
> > It should not be the case.
> > I've checked gdaltindex from latest FWTools on Windows and
> > it works with relative and absolute paths.
> > Also, you can use forward or back slash:
> >
> > gdaltindex test.shp data/*.tif
> >
> > gdaltindex test.shp data\*.tif
> >
> > Although, gdaltindex usage message suggests to use the former version
> > with Unix-like forward slash.
> >
> > Cheers
> > --
> > Mateusz Łoskot
> > http://mateusz.loskot.net
> >
>
>
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