PhET Progress Report
Sam
Reid
October
15, 2009
An
online version of this report is available here.
Here's
a pie
chart representation of the time distribution.
Piccolo
·
Our
piccolo is a branch based on r390 (around 1.2.1), I’ve been looking into
upgrading us to current version r720 (for 1.3), see #1821
·
Found
3 issues:
o toImage missed composite bounds, fixed
in #137
o toImage uses a different
strategy
o in
RadioactiveDatingGameApplication 2nd tab,
some bounds have NaN
·
Helped
Chris identify/resolve JSpinner problem on Windows
for ReactantsProductsAndLeftovers
Motion
Series
·
Resolved
a few Mac issues
o Discovered the missing slider track
problem #1767
is scale dependent
o Still
have some global painting problems and focus problems
·
Added
scroll bars to control panel where necessary
·
Organized
to-do
document
·
Should these sim
replacements go to tigercat as 2.0?
·
Any issues raised by Trish’s classroom
usage?
·
Anything else need to be done
before interviews or tigercat? Many of the issues listed in my to-do
document are of dubious priority
CCK
·
Implemented
dynamic time step (predictor/corrector method) for cck.
·
Discussed
tradeoffs of dynamic time step vs analytical
solutions.
·
Analyzed
3.17.00 for how it avoids the oscillation problem
·
Fixed
problem in changing background color.
·
Need to decide what’s next to
handle RC circuits with R*C << dt and other
problems where dt is too large
Density
·
Added
a test for jpct here,
currently no textures, noninteractive, just to check base
frame rate
Misc
·
Posted
a scale-all prototype here,
and commented on screen-resolution issue in #1822
·
Discussed
high contrast options with Jonathan, identified JXLayer
·
Build
process: worked toward resolving a problem
that trashed svn working copy
Upcoming Work
·
Motion series, see to-do list
·
CCK
·
E&E graph should
have record/playback, use motion series recording controls.
·
Better support for
coordinate frames, see MyCanvas
·
Better tracking &
documentation of sim dependencies and changes
·
Make it possible to
redeploy sims with common changes without retesting
the sim
·
Make it possible to
deploy an exact version of a sim, could use git for this too?
1.
Should add a way to
annotate tested versions, and test results
