 it to a pair of arrays
      describing a triangular mesh or <b>TRI_SURFACE</b>.
    </p>

    <p>
      Especially if you are reading large ASCII STL files, you might want
      to consider the "fast" version of the program, which uses the routines
      <b>STLA_SIZE_FAST</b> and <b>STLA_READ_FAST</b>,
      provided by Bill Seufzer of NASA Langley.
    </p>

    <p>
      An ASCII <b>STL</b> file contains a description of the surface of a solid
      that has been decomposed into triangles.  The vertices