[Gdal-dev] ERDAS IMG .aux file

[Frank Warmerdam]

On 12/13/05, Reinaldo Escada Chohfi <rec at geodesign.com.br> wrote:
> Hi,
>
> Does anyone know where one could get information on the ERDAS .aux file format?

Reinaldo,

Erdas .aux files are in Hierarchical File Architecture format,
the same as .img files.  You can read the specification
documents from Erdas (err, Leica).

  http://home.gdal.org/projects/imagine/iau_docu1.pdf

You can also dump .aux files with the "hfatest" utility
that can be built in gdal/frmts/hfa.   You would use it like:

hfatest -dt  ungeo_bmp.aux

  DependentFile(Eimg_DependentFile) @ 210 + 22 @ 338
  + dependent =
  +     string = `ungeo_bmp.bmp'

  Band_1(Eimg_Layer) @ 360 + 20 @ 488
  + width = 1119
  + height = 1122
  + layerType = athematic
  + pixelType = u8
  + blockWidth = 1119
  + blockHeight = 1

    Projection(Eprj_ProParameters) @ 2013 + 223 @ 2141
    + proType = EPRJ_INTERNAL
    + proNumber = 2
    + proExeName = (no values)
...

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