HFA - angles in seconds unsupported

[warmerdam]

Frank,

Attached image has a spatial reference in GCS with angular unit in
second. After
converted to GDAL JP2, the unit changed to degree.

Could you have a look?

Thanks
Gao, Peng

[warmerdam]

Imagine file demonstrating bug

[warmerdam]

In the file the mapunits is "ds" but this is ignored.
Need to change the driver to recognise this and divide values by 3600.0.
The GDAL view of the file will still be in decimal degrees but with 
the correct values.  OGRSpatialReference does not currently properly 
support non-degree values for angular values so we can't really have
GDAL preserve the file as being in seconds.

    Map_Info(Eprj_MapInfo) @ 2327 + 104 @ 2455
    + proName = `GCS_WGS_1984'
    + upperLeftCenter = 
    +     x = -645498.069498
    +     y = 321507.692308
    + lowerRightCenter = 
    +     x = 645498.069498
    +     y = -321507.692308
    + pixelSize = 
    +     width = 5003.861004
    +     height = 4984.615385
    + units = `ds'

[warmerdam]

Fixed.  "ds" now transformed to degrees. 

I imagine there are other angular units possible, but I am dubious whether
they are used in practice.