PhET Progress Report

Sam Reid

September 17, 2009


An online version of this report is available here.

Here's a pie chart representation of the time distribution.



·         Sam M reported issues with voltage drop across capacitors, regarding the scenario detailed near the bottom of #1737

·         Here’s a screenshot of the case under discussion



·         Added reporting facility so we can easily visualize changes in a sim or its dependencies

·         Configured laptop for phet usage (vpn, ide, build metadata, office)

·         Tested font rendering under XP and Vista

·         Generate SVN Log info, example output for gravitaitonal-force-lab here



·         Posted 1.03.41 with 16 features/fixes

·         Independent controls for wall bounce (with spring) and surface friction

·         Frictionless surface indicated as icy

·         Improve layouts

·         Misc bugfixes


Upcoming Work

·         Post gravity force lab

·         Ramp simulation, see to-do list

·         E&E graph should have record/playback, use Scala recording controls.

1.      Noah provided a mock-up, see email

2.      Rewrite this component in Java?

·         Discuss MyCanvas layout implementation with Chris, John, Jonathan

1.      Still experimenting with it

·         Posted sim dependencies, and sims for common libraries and a report for ramp in particular

1.      Decide which of these sims should be reposted, or whether we'd like to investigate the source code for changes before investing in repost + retest.

2.      Chris recommended making common text change logs available to testers

·         Motion Suite: need to discuss Robot Moving Company games with NP

·         CCK - new Physics implementation, testing and performance analysis (with Sam M)

·         JMonkeyEngine/Xith /3dzzd/Flash/Papervision3d/Feng Gui