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<!-- $Id: frmt_bag.html 22975 2011-08-24 19:41:41Z rouault $ -->
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<title>BAG --- Bathymetry Attributed Grid</title>
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<h1>BAG --- Bathymetry Attributed Grid</h1>
This driver provides read-only support for bathymetry data in the BAG format.
BAG files are actually a specific product profile in an HDF5 file, but a
custom driver exists to present the data in a more convenient manner than
is available through the generic HDF5 driver.<p>
BAG files have two or three image bands representing Elevation (band 1),
Uncertainty (band 2) and Nominal Elevation (band 3) values for each cell in a
raster grid area.<p>
The geotransform and coordinate system is extracted from the internal XML
metadata provided with the dataset. However, some products may have
unsupported coordinate system formats.<p>
The full XML metadata is available in the "xml:BAG" metadata domain.<p>
Nodata, minimum and maximum values for each band are also provided.<p>
<h2>See Also:</h2>
<ul>
<li> Implemented as <tt>gdal/frmts/hdf5/bagdataset.cpp</tt>.<p>
<li> <a href="http://www.opennavsurf.org">The Open Navigation Surface Project</a>
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