These directories contain some Diderot programs written using different
versions of the syntax.

    old -- syntax from vis12/lamont branches
    back -- mostly backward compatible (using deprecated syntax features)
    new -- using the new syntax

The files come from the following sources:

    diderot/branches/vis12/test/mandel.diderot
    diderot/branches/vis12/test/laplgrad.diderot
    diderot/branches/vis12/test/ridge2d.diderot
    diderot/branches/vis12/test/illust-vr.diderot
    diderot-papers/final/vis15/figs/isohnd/isodense.diderot
    diderot-papers/final/vis15/figs/isohnd/isosparse.diderot
    diderot-papers/final/vis15/figs/lic2d/sline.diderot
    diderot-papers/final/vis15/figs/lic2d/lic2d.diderot
    diderot-papers/final/vis15/figs/vrtest/fsamp.diderot
    diderot-papers/final/vis15/figs/vrtest/moe-vr-can2.diderot