These classes are intended to give a higher level access to AMR hierarchies in
FlexIO format. Unfortunately they grew as I just became accustomed to the AMR
format and still contain provisions due to some initial misconceptions on my
part (i.e. trying to handle incompletely refined grid cells being the severest
example). They were left in the library because they sometimes come in handy
when experimenting with AMR data (e.g. throwing away boundary cells for higher
order interpolation, etc.). Ultimately they should be discarded.

All this is work in progress and still needs to be tweaked to work. It was
sufficient to generate the images in the papers I wrote, but I may have broken
one thing or the other when I made changes. So take these sources as they are
and expect some problems when using them.

The grid stitching code can be found in AMRGridStitcher.hh and AMRGridStitcher.cc.
WriteStitchCells.cc and StitchCellWriter.hh, StitchCellWriter.cc is an example
for using it to write the stitch cells to a file. A description of the grid
stitching can be found in:

Weber, G.H., Kreylos, O., Ligocki, T.J., Shalf, J.M., Hagen, H., Hamann, B.
and Joy, K.I. (2002), "Extraction of crack-free isosurfaces from adaptive
mesh refinement data," to appear in: Farin, G., Hagen, H. and Hamann, B.,
eds., Hierarchical and Geometrical Methods in Scientific Visualization,
Springer-Verlag, Heidelberg, Germany.

A pdf version of the paper is available at
http://graphics.cs.ucdavis.edu/~hamann/WeberKreylosLigockiShalfHagenHamannJoy2002.pdf

Gunther H Weber (weber@informatik.uni-kl.de)