The SCAPE tools use the STM (Simple Terrain Model) file format.  It
consists of a brief header followed by raw binary data.  The general
structure of the file is:


	STM <width> <height> <c1><c2><c3><c4><cr>
	<height data>

The height data is a sequence of unsigned 16-bit integers representing
the height values.

The four bytes c1..c4 are used to determine what byte order the
integers are stored in.

The STM-tools directory contains some simple programs for creating and
manipulating STM files.

In particular, the DEM2STM script converts USGS DEM files into STM
files.  It uses the CONVERT program by Christopher Keane to parse the
DEM file into a simpler format, and then it converts that into an STM
file.  This will NOT account for the spherical mapping of DEM data.
To properly warp the input data, look at the demtoflat and resample
programs in the STM-tools/DEMutil directory.

*PLEASE NOTE*  These converters are in no way meant to be highly
accurate or production quality.  They are merely included as quick and
dirty examples to let people experiment with USGS DEM data.