Movies:
watchpoints.mov--movie of 2-coloring watchpoint
no_watchpoint.mov--movie of 2-coloring system w/out watchpoint

Using watchpoints:
to enable watchpoints, add the variable you want to track to WPManager::getState (there are some examples there already), then add a "WP=" line to the experiment file. See samples/wp_test.exp and samples/gf_test.exp for tests on 2-coloring and gradient fields.

Note that the watchpoint functions will require the Boost C++ libraries to work.