# 1.10.01 (53877) Jul 8, 2011
7/7/11 > added "Excite Atom" button for getting Schrodinger atom out of the (2,0,0) metastable state
7/7/11 #2803, add Excite Atom button to Schrodinger view
7/7/11 #2803, more simplification of atom and gun listener interfaces
7/7/11 #2803, add Array<T> to modified files to suppress warnings
7/7/11 #2803, simplify listener interface for photon absorption and emission
7/7/11 #2803, make MetaStableHandler a field in SchrodingerModel
7/7/11 #2803, add logger to MetaStableHandler, replace hardcoded state values with constants
# 1.10.00 (51735) May 9, 2011
5/9/11 > added new translation credits features
# 1.09.01 (51573) May 5, 2011
4/20/11 moved boilerplate code in AtomicModelSelector into ButtonNode inner class
4/20/11 use one ArrayList<PNode> to determine dimensions of Atomic Model control panel
4/20/11 replace AbstractEnum with Java 1.5 enum (no usage changes required)
> highlight wavelength slider knob whenever it's on an absorption wavelength
4/14/11 #2802, make wavelength slider thumb remain highlighted when the value is an absorption wavelength
2/15/11 Moved WavelengthControl and TestWavelengthControl to piccolo-phet
2/15/11 Added main to WavelengthControl to demonstrate usage
11/19/10 rename ModelViewTransform to HAModelViewTransform
# 1.09.00 (38004) Jan 9, 2010
1/9/10 public version for milestone "full redeploy, 2010 Q1"
# 1.08.01 (37358) Dec 11, 2009
12/11/09 test version for milestone "full redeploy, 2010 Q1"
12/4/09 #89, subclass PaintImmediateDialog instead of JDialog
# 1.08.00 (30610) Apr 20, 2009
4/20/09 Batch deploy as part of IOM milestone with revision 30609
# 1.07.02 (29629) Mar 22, 2009
3/22/09 Batch deploy for Alpha Simulation Tests 2, svn 29628
# 1.07.01 (28794) Feb 19, 2009
Batch deploy for alpha Simulation Tests, svn 28773
12/11/08 - #1020, use new gun image created by Noah P.
12/8/08 - #1003, use closeButton.png from phetcommon
10/8/08 - use PhetApplicationConfig.launchSim
10/8/08 - moved list of rejected features to Unfuddle 802
6/24/08 - move SphericalNode to piccolo-phet
5/20/08 - replace Font with PhetFont
# 1.07.00 (21248)
# 1.06.01 (21223)
5/7/08 - pickup PhetDefaultFont support for Japanese preferred fonts [543]
4/4/08 - remove clock icon from HAClockControlPanel, animated icon was added to phetcommon
1/7/08 - replace "Lucida Sans" with PhetDefaultFont in test code
# 1.06.00 (18580)
11/16/07 - Experiment atom was getting stuck in (2,0,0), needed to attached a MetastableHander to it (similar to Schrodinger)
11/9/07 - move about.credits property to localization file
8/29/07 - replace HAWiggleMe with piccolo-phet DefaultWiggleMe
8/29/07 - replace JLabel().getFont() with PhetDefaultFont
8/27/07 - migrated photon image creation and caching to piccolo-phet (PhotonImageFactory)
# 1.05.00 (17033)
7/27/07 - new version published as part of new website deployment
7/24/07 - PhotonImageGenerator utility added by Sam Reid
7/10/07 - use -dev commandline arg to enable developer controls instead of javaws.phet.developer property
6/15/07 - convert description properties to well-formed HTML
# 1.04.00 (15867)
6/13/07 - use property javaws.phet.developer to enable developer controls
6/13/07 - remove ARTS implementation (GPL) of associated Legendre polynomials, remove from credits
6/13/07 - integrate Sam Reid's solver for associated Legendre polynomials
5/14/07 - remove duplicate code by making HAClockControlPanel extend ClockControlPanel
5/14/07 - get clock.png from phetcommon
4/23/07 - delete SliderControl, not used
4/6/07 - organize imports
4/6/07 - set locale in Spanish JNLP file
4/6/07 - encapsulate loading of strings and images in HAResources
4/6/07 - convert from SimStrings to PhetProjectConfig
# 1.03.00 (14208)
4/5/07 - change SolarSystemEnergyDiagram.MIN_RADIUS so electron's last position will be at bottom of chart for all clock speeds
4/4/07 - add energy model to Solar System energy diagram
4/3/07 - make Solar System energy diagram work correctly with variable clock speed
4/3/07 - add HAClock.getDt, rename setDt
3/27/07 - remove canvas argument from all ancestor nodes of PSwing in scenegraph
3/20/07 - move ColorChooserFactory to phetcommon
3/20/07 - move ArgUtils to phet.common.util.CommandLineUtils
3/15/07 - move ModelViewManager framework to its own package
3/15/07 - eliminate dependency of BoxOfHydrogenNode on AnimationBoxNode, reimplement tiny box
# 1.02.00 (13772)
3/14/07 - rename SimStrings files to have basename hydrogenatom_strings
3/14/07 - move images to data/hydrogenatom/images to avoid namespace collisions
3/14/07 - get version and credits from properties file
3/13/07 - simplfy ModelViewTransform, improve javadoc
3/13/07 - change "photons and alpha particles" to "light" in About dialog description
3/12/07 - move RoundGradientPaint to phetcommon
3/12/07 - used PhetPCanvas.getWorldSize
3/12/07 - bug fix in MovingObject.setSpeed
CVS tag: hydrogenatom-1-01-00-2007-02-16
(2/16/07) - add "Light controls" label at top of GunControlPanel
(2/16/07) - hide alpha particles features in gun control panel (GunControlPanel.SHOW_ALPHA_PARTICLE_CONTROLS = false)
(2/16/07) - hide dt value shown in clock control panel (HAClockControlPanel.DEBUG_SHOW_DT = false)
(2/16/07) - choose 3 clock speeds: { 0.5, 2, 6 }, default to 2
(2/16/07) - change MetastableHandler.MAX_STUCK_SIM_TIME to 100
(2/16/07) - change BohrModel.MIN_TIME_IN_STATE to 50
(2/7/07) - very brief package level javadoc
CVS tag: hydrogenatom-1-00-03-2007-02-05
(2/5/07) - AbstractHydrogenAtom.COLLISION_CLOSENESS should have double precision
(2/5/07) - include electron radius in calculation of "collision closeness" threshold
(2/5/07) - restore the wavelength cursor, make it white so it doesn't interfere with absorption wavelength marks
(2/2/07) - change first column of Transitions dialog to "n transition"
CVS tag: hydrogenatom-1-00-02-2007-02-02
(2/2/07) - bugfix: visibility of "Show absorption wavelength" checkbox is not correct
(2/2/07) - use ActionListener for checkboxs in Gun control panel to prevent duplicate events 
(2/2/07) - make "Show absorption wavelengths" control visible only for relevant models
(2/2/07) - fix alignment of wavelength knob & cursor, move origin to knob's tip and cursor's top-center
(2/2/07) - mark ground state absorption wavelengths in wavelength control, use vertical black lines in track
(2/2/07) - add interfaces to WavelengthControl to support adding marks to track
CVS tag: hydrogenatom-1-00-01-2007-02-01
(2/2/07) - use sim time for time stuck in metastable state before firing a photon, add dev control (rollup)
(2/1/07) - add "Show absorption wavelengths" checkbox below wavelength slider (not wired up)
(2/1/07) - in deBroglie radial view, wave functions for all states should have same max amplitude
(2/1/07) - do NOT reset gun to default wavelength each time monochromatic is selected
(2/1/07) - remove intensity control for light and alpha particles
(2/1/07) - GunTypeControl fix, should send notification for selected choice only
(2/1/07) - LightTypeControl fix, should send notification for selected choice only
(2/1/07) - reset gun to default wavelength each time monochromatic is selected
(2/1/07) - change default wavelength to 94 nm
(2/1/07) - change color of photon icon to 600 nm
(2/1/07) - change deBroglie view choices to "radial view", "3D view", "brightness view"
(2/1/07) - make legend visible only in Prediction mode
(2/1/07) - remove photon and alpha particle from legend
(2/1/07) - change Experiment box dimensions to 125x125
(2/1/07) - always show proton in Schrodinger
(1/31/07) - add development team to credits
(1/29/07) - add dt display to clock control panel for debugging
(1/29/07) - add a bunch of clock speeds (0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) so Sam M. can pick 3
(1/29/07) - delete "amplitude magnitude -> brightness" option for deBroglie views
(1/29/07) - change order of deBroglie views to: radial, 3D, brightness
(1/29/07) - set default deBroglie view to radial
(1/29/07) - add 2 faster clock speeds
CVS tag hydrogenatom-1-00-00-2007-01-17
(1/17/07) - publish 1.0 to PhET website
(1/17/07) - fix and test JNLP files in deploy/
CVS tag hydrogenatom-0-00-22-2007-01-16
(1/16/07) - create final thumbnail image, based on snapshot from Sam McKagan
(1/16/07) - add description (abstract) to SimStrings file, translate to Spanish
(1/16/07) - make period of energy squiggle a function of wavelength
(1/16/07) - change energy squiggle stroke width from 2 to 1 in order to draw higher frequency squiggles
(1/16/07) - add methods to ColorUtils for determining if a wavelength is UV, IR or visible
(1/16/07) - use a darker gray for UV and IR, so that it shows up on both black and white backgrounds
(1/16/07) - move Spectrometer close buttons up 2 pixels to look better on Windows
(1/16/07) - bugfix: spectrometer Start/Stop and Reset buttons are fully transparent on Windows
(1/16/07) - add spacing StateDisplayNode formats to improve readability on Windows
(1/16/07) - remove test code from HADefaults, difficult to read, no longer needed
(1/16/07) - add HAConstants.DEBROGLIE_VIEW_IN_MENUBAR for selecting which control (menu or combobox) to use
(1/16/07) - hide "Options>deBroglie view" menu
(1/16/07) - add deBroglie views combobox at inside-top-left of "box"
(1/15/07) - reduce time to fire absorbable photon to 5 sec in MetastableHandler
(1/15/07) - add n= state display to lower right for Bohr and deBroglie
(1/15/07) - create StateDisplayNode for displaying electron state variabled, use throughout
(1/15/07) - move state display flag to HAConstants
(1/15/07) - move nlm display to lower right in Schrodginer
(1/10/07) - verify that behavior is correct when clock is paused
(1/10/07) - make DeBroglieBrightnessNode preallocate and reuse the objects that it uses to make the ring
(1/10/07) - rename BohrModel.updateElectronPositon -> updateElectronOffset
(1/10/07) - rename getElectronOffset to getElectronOffsetRef to indicate that it returns a reference
(1/10/07) - add getElectronPositionRef to significantly reduce Point2D allocation
(1/10/07) - add _electronPosition member to PlumPuddingModel to reduce Point2D allocation
(1/10/07) - change HAModel and Model to use to use toArray for iterating over non-empty collections that may change
(1/10/07) - reuse transform in EnergySquiggle
(1/9/07) - make a new thumbnail image
CVS tag hydrogenatom-0-00-21-2007-01-09
(1/9/07) - set probability of absorption and stimulated emission to 100% in Bohr/deBroglie/Schrodinger
(1/9/07) - test Spanish translations
(1/9/07) - run Schrodinger for 3.5 hours with white light, no problems
(1/9/07) - bugfix: fix state transition implementation in SchrodingerModel, it was performing invalid transitions
(1/9/07) - write test harness for phetcommon ProbabilisticChooser, used in SchrodingerModel
(1/9/07) - major reorganization and cleanup of BohrModel to improve readability
(1/9/07) - move inner class events and listeners to new "event" package
(1/8/07) - examine all calls to "new" to identify possible memory optimizations
(1/8/07) - make NotToScaleNode extend HTMLNode
(1/8/07) - make the legend invisible (don't draw it) when the energy diagram is visible
(1/8/07) - flatten BoxOfHydrogenNode to a single PImage
(1/8/07) - use getPositionRef instead of getPosition throughout to minimize Point2D creation
(1/8/07) - remove unnecessary Point2D creation from DeBroglieModel.collides3D
(1/8/07) - remove SwitchAnimatorNode, it introduced new problems and looked odd
(1/8/07) - wire SwitchAnimatorNode into HAModule
(1/8/07) - write SwitchAnimatorNode for sliding atomic model selector panel up/down
CVS tag hydrogenatom-0-00-20-2007-01-05
(1/6/07) - bugfix: gun is initialized to white light, but intensity slider shows a color
(1/5/07) - position spectrometer snapshot based on position of most-recently created snapshot
(1/5/07) - bugfix: gun defaults to white light but shows monochromatic controls
(1/5/07) - diagonally stagger location of snapshots
(1/5/07) - bugfix: hide spectrometer if default value is deselected
(1/5/07) - add a flag for switching between test and production values in HADefaults
(1/5/07) - add developer control for time that squiggle is visible
(1/5/07) - put m= in upper-right corner of Schrodinger energy diagram
(1/5/07) - javadoc energy diagrams
(1/5/07) - make squiggles go away after 1.5 seconds
(1/5/07) - javadoc EnergySquiggle
(1/4/07) - add arrow and sinusoidal shape to squiggles
(1/4/07) - align squiggle with center of state line
(1/4/05) - add some missing stuff to HADefaults, document values for public release
(1/4/05) - get absorption and emission squiggles working as solid straight lines that persist
(1/4/05) - move setAtom and clearAtom out of energy diagram base class to eliminate need for casting
(1/4/05) - simplify initialization of electron position in energy diagrams
(1/3/07) - grab edu.colorado.phet.dischargelamps.view.EnergySquiggle
(1/3/07) - javadoc AbstractEnergyDiagram base class
(1/3/07) - javadoc Schrodinger energy diagram
(1/3/07) - clean up layout of Schrodinger energy diagram
(1/3/07) - javadoc Bohr energy diagram
(1/3/07) - clean up layout of Bohr energy diagram
(1/3/07) - fix layout of y-axis label in energy diagram, falls off bottom
(1/3/07) - move n=6 label up slightly in energy diagrams to prevent collision with n=5 label
(1/3/07) - refine distortion of energy levels in energies diagrams
(1/3/07) - make energy diagram look like a window, with a border and titlebar
(1/3/07) - remove gap between title and diagram in energy diagram (stroke around clipNode)
(1/3/07) - bugfix: energy diagram checkbox is clickable through the energy diagram
(1/3/07) - make spectrometer slightly wider
(1/3/07) - add title and close button to energy diagram
(1/3/07) - increase height of energy diagram 
(1/3/07) - make energy diagram cover its "show" checkbox
(1/3/07) - make spectrometer cover its "show" checkbox
(1/3/07) - use CloseButtonNode in spectrometer and its snapshots
(1/3/07) - refactor close button code into CloseButtonNode
CVS tag hydrogenatom-0-00-19-2007-01-02
(1/2/07) - add separate layers for state indicators and squiggles in energy diagrams
(1/2/07) - implement Schrodinger energy diagram with no squiggles, no m=
(1/2/07) - move common code for node creation and energy value calculation to AbstractEnergyDiagram
(1/2/07) - implement Bohr/deBroglie energy diagram with no squiggles
(1/2/07) - Solar System energy diagram must update electron offset even when the diagram is invisible
(1/2/07) - rename SchrodingerUnstucker to MetastableHandler
(12/29/06) - implement Solar System energy diagram
(12/29/06) - set up infrastructure for energy diagrams to observe atom
(12/29/06) - made DeBroglieEnergyDiagram extend BohrEnergyDiagram
(12/29/06) - add CursorHandler to checkboxes that are on the canvas
(12/29/06) - add CursorHandler to textfield in WavelengthControl
(12/29/06) - add CursorHandler to all interactive controls in GunControlPanel
(12/29/06) - add hand cursor to Spectrometer close button
(12/29/06) - move default control settings to HADefaults
(12/28/06) - use 1 image for entire spectrum in WavelengthControl, using SpectrumImageFactory
(12/28/06) - add track size to WavelengthControl constructor
(12/28/06) - scale "UV" and "IR" labels to fit WavelengthControl track height
(12/28/06) - add WavelengthControl.setKnobSize(int width, int height)
(12/28/06) - make SpectrumImageFactory more general, and move it to phetcommon
(12/28/06) - generate spectrum image programmatically instead of using an image file
(12/27/06) - when Schrodinger is in state (2,0,0) and gun is firing white light, fire an absorbable photon at the atom's center evry 15 sec 
(12/27/06) - add Gun method for firing one photon of a specific wavelength from the center of the gun's nozzle
(12/27/06) - absorb photons with 100% probability when Schrodinger is in state (2,0,0)
(12/27/06) - allow subclasses of BohrModel to override methods for determining probability of absorption and emission
(12/26/06) - replace m,n state arguments with nOld,nNew in BohrModel methods
(12/26/06) - scale down plumPudding.png image
(12/26/06) - javadoc and cleanup SpectrometerNode
(12/26/06) - check SchrodingerModel transition rules in a way that doesn't stop the program if a violation occurs
(12/26/06) - add unit test program for SchrodingerNode, populates cache for all possible states
(12/26/06) - bugfix: bad array initialization in SchrodingerNode.BrightnessCache constructor
(12/26/06) - make tick labels on spectrometer larger and bold font
CVS tag hydrogenatom-0-00-18-2006-12-21
(12/21/06) - bugfix: ArrayOutOfBoundsException in SchrodingerModel.chooseLowerElectronState, introduced in 0.00.16
(12/21/06) - in SchrodingerModel.chooseLowerElectronState, (n,0,0)->(1,0,0) is forbidden for all value of n
(12/21/06) - make spectrometer "running" by default
(12/21/06) - move SpectrometerNode to view package
(12/21/06) - capture meter cells in spectrometer snapshot
(12/21/06) - don't update the spectrometer when it's not visible
(12/21/06) - update spectrometer display for each photon emitted
(12/21/06) - move spectrometer button panel down below tick marks area
(12/21/06) - flatten static stuff in spectrometer to an image
(12/21/06) - spectrometer has labeled ticks at 90, 380, 500, 600, 780, 7500
(12/21/06) - spectrometer has unlabeled ticks at 50 nm increments in visible spectrum
(12/21/06) - add ticks and labels to spectrometer
(12/21/06) - set UV and IR portions of spectrometer similar to Discharge Lamps (~15% each)
(12/21/06) - add color key strip along bottom of spectrometer display area
(12/21/06) - add min/max wavelength range to spectrometer
(12/21/06) - reset spectrometer when atomic model is changed
(12/21/06) - make SpectrometerNode a PhotonEmittedListener, wire up to atomic model
(12/21/06) - delete HAController, merge into HAModule
(12/21/06) - major surgery to SpectrometerNode and HAModule
(12/21/06) - delete SpectrometerListener, replace with ActionListeners on buttons
(12/21/06) - make size of SpectrometerNode variable
(12/21/06) - change Spectrometer image files, draw display area using Java2D
(12/21/06) - change Schrodinger button to show ground state
CVS tag hydrogenatom-0-00-17-2006-12-20
(12/20/06) - add "show traces" feature for alpha particles
(12/20/06) - modify ModelViewManager to support multiple views of a ModelElement
(12/20/06) - update images on atomic model selector buttons using screen snapshots
CVS tag hydrogenatom-0-00-16-2006-12-19
(12/19/06) - javadoc for SchrodingerModel
(12/19/06) - bugfix: HTML arrows don't work on Windows, replace with "->" and "<->"
(12/19/06) - implement special cases for Schrodinger (2,0,0) state
(12/19/06) - implement rules for Schrodinger (n,l,m) state transitions
(12/19/06) - add hooks to BohrModel for subclasses to redefine how state transitions are chosen
(12/18/06) - use float inside of double for Schrodinger brightness cache
(12/18/06) - test feasibility of writing Schrodinger brightness cache to a file
(12/15/06) - implement a brightness cache in Schrodinger, either populated on init or on demand
(12/15/06) - change Schrodinger proton visibility threshold to 0.25
(12/15/06) - change Schrodinger so that spontaneous emission always occurs on a point on 1st Bohr orbit
(12/15/06) - javadoc SchrodingerNode
(12/15/06) - add developer control for Schrodinger proton visibility threshold
(12/15/06) - show Schrodinger proton if brightness at center is less than some threshold
(12/14/06) - increase default clock speed
(12/14/06) - change gun's min wavelength to 92nm so that atom can't be ionized (ionization feature was dropped)
CVS tag hydrogenatom-0-00-15-2006-12-13
(12/14/06) - turn off debug graphics on deBroglie 3D view (roll into 0.00.15)
(12/14/06) - remove seams between quadrants of grid in SchrodingerNode (roll into 0.00.15)
(12/13/06) - add proton to center of Schrodinger atom
(12/13/06) - use ARTS function (GPL) for Associated Legendre Polynomial, add to credits
(12/13/06) - compare Schrodinger to falstad.com/qmatom (looked at about a dozen, looks good)
(12/13/06) - bugfix: bad loop index when calculating (x,y,z) coordinates for Schrodinger cube
(12/13/06) - refactor StateNode in SchrodingerNode
(12/13/06) - draw all 4 quadrants of Schrodinger using PImage so that they are properly aligned
(12/12/06) - add state (n,l,m) display to SchrodingerNode
(12/12/06) - rewrite how SchrodingerNode draws the atom
(12/12/06) - calculate prob density for only 1/8 of Schrodinger cube (positive x,y,z values)
(12/12/06) - debug SchrodingerModel
(12/11/06) - first pass at Schrodinger view, throws exceptions
(12/11/06) - first pass at Schrodinger model, essential information missing or incorrect in design doc
(12/8/06) - handle AlphaParticle orientation in RutherfordScattering and AlphaParticleNode, disable in node
(12/8/06) - handle Photon orientation in PhotonNode
(12/8/06) - remove extra calls to ModelViewTransform inside OrbitNodeFactory, should be passed view radius
(12/8/06) - use OrbitNodeFactory.createOrbitNodePerspective to create projections of 3D orbits for debugging
(12/8/06) - model javadoc
(12/8/06) - improve performance of deBroglie 3D view "rotate into place" animation, don't flatten orbits to image
(12/7/06) - implement collision detection with deBroglie 3D orbits
(12/7/06) - emit photons along deBroglie 3D orbits
CVS tag hydrogenatom-0-00-14-2006-12-06
(12/6/06) - reduce probability of stimulated emission
(12/6/06) - verified that emission is not favoring state=1 (looks like this because stimualted emission happens often!)
(12/6/06) - add up/down arrow support in WavelengthControl textfield
(12/6/06) - Unicode arrows don't display on Windows, replace with HTML entities
(12/6/06) - verify that all calls to OrbitFactory apply ModelViewTransform to radius
(12/6/06) - fix bounds hack in Wireframe3DNode
(12/6/06) - notify Wireframe3DNode of changes to Wireframe3D bounds
(12/6/06) - major changes to Wireframe3D to improve interface and performance, remove need to call "done" method
(12/6/06) - fix color assignment in Wireframe3D
(12/6/06) - add computation of transformed bounding box to Wireframe3D
(12/6/06) - replace some of the obstuse code in Wireframe3D with more recent code from Sun
(12/5/06) - bugfix: photon emission favors going back to state=1, all transitions should have equal probability
(12/5/06) - make gun fire at center of atom 10% of the time
(12/5/06) - make sure that all atom views apply ModelViewTransform
(12/5/06) - add developer control for GunWavelengthControl hilite threshold
(12/5/06) - create SpinnerControl to clean up develop controls dialog
(12/5/06) - use same shade of "electron blue" for all deBroglie representations
(12/5/06) - move common static methods to AbstractHydrogenAtom
(12/5/06) - make WavelengthKnobManager an extension of WavelengthControl (GunWavelengthControl)
(12/4/06) - make wavelength slider knob hilite when close to a transition wavelength, snap to closest transition wavelength
(12/4/06) - remove isDragging method from WavelengthControl
(12/4/06) - add isDragging method to WavelengthControl and ConstrainedDragHandler, test
(12/4/06) - add ability to change knob stroke to WavelengthControl
(12/4/06) - replace Color.WHITE with Color.BLACK in deBroglie brightness representations
(11/30/06) - use a separate instance of Random for each task in Gun model
(11/30/06) - rename SpectralLineTableDialog to TransitionsDialog, label "Transitions"
(11/30/06) - change white light to be 60% random visible wavelengths, 40% transition wavelengths for state=1
CVS tag hydrogenatom-0-00-13-2006-11-29
(11/29/06) - add temp hack for deBroglie 3D bounds paint problem
(11/29/06) - big reorg of DeBroglieHeight3DNode in order to optimize memory usage
(11/29/06) - make Wireframe3D and Wireframe3DNode mutable, reuse where possible
(11/29/06) - reuse Vertex3D[] where possible in 3D deBroglie view
(11/29/06) - make deBroglie 3D view (optionally) rotate into place
(11/29/06) - increase precision of Martrix3D transformation from int to float
(11/29/06) - make DeBroglieHeight3DNode responsible for specifying how wireframe verticies are connected
(11/29/06) - new constructors for Wireframe3D
(11/29/06) - change Point3D to Vertex3D, put in its own class file, change names accordingly in client source
(11/29/06) - move all wireframe code to wireframe package (was model3d package)
(11/29/06) - make 3D orbits look like dashed lines by connecting every-other point in wireframe
(11/29/06) - set width of stroke for Wireframe3D, adjust for stroke width when computing bounds
(11/28/06) - major overhaul and bug fixes in Wireframe3D, get rid of parser
(11/28/06) - set bounds of PNode3D based on bounds of its associated Wireframe3D
(11/28/06) - draw 3D orbits using Wireframe3D
(11/28/06) - add essential features to Wireframe3D
(11/28/06) - change OrbitFactory to use y:x ratio when creating perspective orbits
(11/28/06) - add ability to set front & back colors for wireframe model rendering, to provide visual depth cues
(11/28/06) - add ability to set a color for wireframe model rendering
(11/28/06) - first pass at 3D deBroglie view using Sun's Wireframe code
(11/27/06) - setPickable(false) on all non-interactive nodes
(11/27/06) - move OrbitNodeFactory to its own file
CVS tag hydrogenatom-0-00-12-2006-11-22
(11/22/06) - remove n-dependence of oscillation frequency from deBroglie (make all levels oscillate at same frequency as n=1)
CVS tag hydrogenatom-0-00-11-2006-11-21
(11/21/06) - fix DeBroglieModel to use COLLISION_CLOSENESS in its collision detection
(11/21/06) - rename AbstractHydrogenAtom.ABSORPTION_CLOSENESS to COLLISION_CLOSENESS
(11/21/06) - clean up Developer Controls dialog to make it clearer
(11/21/06) - add developer controls for colors used in deBroglie brightness representations
(11/21/06) - add developer control for radial amplitude view of deBroglie
(11/21/06) - implement photon collision detection for deBroglie (collide with ring)
(11/21/06) - modify Bohr model to allow subclasses to override photon collision detection
(11/21/06) - use color interpolation to map amplitude to colors for DeBroglie brightness representation
(11/21/06) - write ColorUtils.interpolateRGB
(11/20/06) - 2nd pass at DeBroglie "brightness" and "brightness magnitude" representations (correct but slow)
(11/20/06) - 1st pass at DeBroglie "brightness" and "brightness magnitude" representations (approx a ring using circles)
(11/20/06) - implement DeBroglie "radial distance" representation
(11/20/06) - remove temporary Schrodinger atom image, replace with "not implemented" text
CVS tag hydrogenatom-0-00-10-2006-11-18
(11/18/06) - bugfix: Legend & Spectral Line Table dialogs can't be reopened if closed via window dressing
(11/18/06) - create hierarchy of "view strategies" for use in DeBroglieNode
(11/18/06) - hook up "deBrogile view" menu to DeBroglieNode via DeBroglieModel
(11/18/06) - revise DeBrogileViewMenu and SimStrings
(11/18/06) - create DeBroglieView enumeration
(11/17/06) - increase range of "max particles in box" to [1,100]
(11/17/06) - make generation of photons for white light be weighted towards wavelengths from the Bohr absorption spectrum
(11/16/06) - add min time that electron must stay in a Bohr state before emission occurs, include dev control
(11/16/06) - removed asset files that are no longer relevant
(11/16/06) - make plum pudding 20% darker red
(11/16/06) - set gun's default wavelength to 530
(11/16/06) - make legend font bigger
(11/14/06) - fix AtomicModelSelector.getSelectionName so that labels don't contain HTML
(11/14/06) - make ExperimentNode very dark gray instead of black
(11/14/06) - put ExperimentNode in front of photons and alpha particles
(11/14/06) - add layers to AnimationBoxNode
(11/13/06) - change "animation region" to "animation box" throughout
(11/13/06) - make PlumPuddingModel and BohrModel use separate instances of Random for absorb/emit probabilities
(11/13/06) - make RandomUtils methods share an instance of Random, instead of using Math.random
(11/13/06) - add developer control for setting "closeness" required for photon absorption
(11/13/06) - change dev control for "max particles" to a JSpinner
(11/13/06) - change default "max particles" to 20, default intensity to 50%
(11/13/06) - specify gun firing rate as "max particles in box"
(11/12/06) - ExperimentModel extends SchrodingerModel
CVS tag hydrogenatom-0-00-09-2006-11-12
(11/12/06) - sync with phetcommon
(11/12/06) - cache photon images
(11/12/06) - tested Bohr state transitions, fixed bugs
(11/12/06) - improve layout of Spectral Line Table dialog
(11/10/06) - add dialog displaying spectral line table to menubar
(11/10/06) - add developer controls for disabling parts of Bohr absorb/emit
(11/10/06) - add stimulated emission to Bohr
(11/10/06) - first pass at photon absorb/emit in Bohr
(11/10/06) - reorg photon absorption code in PlumPuddingModel to be similar to BohrModel
(11/10/06) - reduce radii of Bohr orbits 2-6 so that 6th orbit's dashed line fits fully in box
(11/10/06) - make PlumPuddingNode automatically scale its image to match the model's radius
(11/10/06) - reduce billiard ball and plum pudding radii to 30
(11/10/06) - tried to make plum pudding look like "red cotton candy" but failed, asked for example
(11/9/06) - used canned values provide by Sam McKagan for Bohr orbit radii, don't compute
(11/9/06) - start Bohr electron at a random angle
(11/9/06) - remove ability to change animation box size from SimString file, too many things depend on its value
(11/9/06) - constrain animation box to be square
(11/9/06) - read animation box size from config file only in HAConstants
(11/9/06) - reduce radius of plum pudding
(11/9/06) - reduce radius of billiard ball
(11/9/06) - add collided flag to Photon to prevent it from getting stuck inside the billiard ball
(11/9/06) - don't remove all particles when switch the type of the gun
(11/9/06) - fix "closeness" deflection workaround on left side of plum pudding atom
(11/8/06) - add adhoc state change to Bohr absorb/emit, for testing electron motion
(11/8/06) - add electron motion to Bohr model
CVS tag hydrogenatom-0-00-08-2006-11-08
(11/8/06) - add Rutherford scattering to Schrodinger model
(11/8/06) - add workaround for alpha particles that get stuck in center of plum pudding
(11/8/06) - move all code related to D out of atom models and into RutherfordScattering class
(11/8/06) - Rutherford Scattering working, but particles get stuck at center of plum pudding atom
(11/8/06) - another attempt at Rutherford Scattering after Sam McKagan rewrote, still not working
(11/8/06) - remove model dependency that ground state = 1
(11/8/06) - remove model stuff from DeBroglieNode
(11/8/06) - move all PROPERTY constants to AbstractHydrogenAtom
(11/8/06) - DeBroglieModel extends BohrModel (they are identical, different visual representation)
(11/8/06) - move orbit and state stuff out of BohrNode and into BohrModel
(11/7/06) - add basic code for moving particles and absorbing/emitting photons to BohrModel
(11/7/06) - remove call to super.stepInTime in HAModel.stepInTime
(11/7/06) - give HAModel responsibility for moving particles
(11/7/06) - remove knowledge of atom from alpha particle model
(11/7/06) - add developer control for Rutherford Scattering debug output
(11/7/06) - add developer control for limiting the model to 1 particle (photon or alpha particle)
(11/7/06) - add extensive debug output to Rutherford Scattering
(11/7/06) - corrections to Rutherford Scattering, still doesn't work
(11/6/06) - first attempt at Rutherford Scattering of alpha particles (coded to spec), doesn't work
(11/6/06) - rearchitect model so that alpha particles move based on algorithm supplied by atom
(11/6/06) - make photons and alpha particles subclasses of MovingObject (mutable postion, orientation, speed)
(11/6/06) - make Gun and atoms subclasses of FixedObject (immutable position and orientation)
(11/4/06) - switchable between 3 different "looks" for UV/IR photons
CVS tag hydrogenatom-0-00-07-2006-11-04
(11/4/06) - remove UV/IR labels from photons, use colored crosshairs
CVS tag hydrogenatom-0-00-06-2006-11-03
(11/4/06) - make UV/IR photons switchable in legend (roll in)
(11/4/06) - make photon representations for UV/IR switchable (roll in)
(11/3/06) - increase probability of photon emission in plum pudding
(11/3/06) - reduce number of clock speeds, set default to a slower speed
(11/3/06) - remove UV and IR photons from legend
(11/3/06) - randomize the electron line in PlumPuddingModel
(11/3/06) - change oscillation line each time PlumPudding's electron starts oscillating
(11/3/06) - change plum pudding shape to a circle, in anticipation of Rutherford scattering
(11/3/06) - make plum pudding electron go through 1 full oscillation before emitting
(11/3/06) - after photon emission, make plum pudding electron complete its oscillation and stop at (0,0)
(11/3/06) - replace crosshairs with labels on UV and IR photons
(11/3/06) - add UV and IR photons to legend
(11/2/06) - plum pudding should absorb only 1 photon (try to continue supporting N)
(11/2/06) - remove support in model for multiple atoms (unnecessary complication)
(11/2/06) - add a slower clock speed, remove the fastest one
(11/2/06) - plum pudding should emit photons from electron location
(11/2/06) - plum pudding should absorb photons when they are "close" to electron
(11/2/06) - set UV photon crosshairs to violet
(11/2/06) - set IR photon crosshairs to red
(11/1/06) - change plum pudding image to be more elliptical
(11/1/06) - add debug code to PlumPuddingNode to show model's bounds
(11/1/06) - sync with phetcommon
(11/1/06) - pick a random point inside plum pudding shape from which to emit photon
(11/1/06) - change PlumPuddingModel shape to an ellipse
(11/1/06) - make HAModel a PhotoAbsorbedListener and PhotonEmittedListener of its atom
(11/1/06) - make HAModel a GunFiredListener and Observer of its gun
(11/1/06) - move photon and alphaParticle management out of Space and into HAModel
(11/1/06) - add _emitted flag to Photon, used to exclude emitted atoms from collision detection
(11/1/06) - sync with piccolo-phet
(10/31/06) - first pass at PlumbPuddingModel and electron animation in PlumPuddingNode
(10/31/06) - specify SolarSystemModel's electron position relative to atom's center
(10/31/06) - when SolarSystem atom is destroyed, replace proton & electron with "kaboom" image
(10/26/06) - implement SolarSystemModel
(10/26/06) - sync with phetcommon
CVS tag hydrogenatom-0-00-05-2006-10-25
(10/25/06) - javadoc
(10/25/06) - change BilliardBallNode to use shape instead of image file
(10/25/06) - implement collision detection and handling for BilliardBallModel
(10/25/06) - add collision detection interface to AbstractHydrogenAtom and HAModel
(10/25/06) - move default implementation of stepInTime (no-op) into AbstractHydrogenAtom
(10/25/06) - add model-view transform for distances
(10/24/06) - HAModel extends Model and keeps separate lists of atoms, photons, alpha particles
(10/24/06) - change model so that Model class is the only ClockListener, all other things are ModelElements
(10/23/06) - add notification mechanism to AbstractHydrogenAtom for absorbing/emitting photons
(10/23/06) - move all particle nodes to hydrogenatom.view.particle
(10/23/06) - move all atom nodes to hydrogenatom.view.atom
(10/23/06) - create atomic models dynamically in HAModule
(10/23/06) - node factories for all atomic models
(10/23/06) - stubs for all atomic models
(10/23/06) - put a box around '?' in ExperimentAtomNode
(10/23/06) - hack to workaroud problem with drag bounds of WavelengthControl not being updated
(10/22/06) - add developer control for varying number of ticks between firing of photons and alpha particles
(10/22/06) - create Developer Controls dialog
(10/22/06) - create menu and dialog packages
(10/22/06) - add enums for GunMode and LightType
(10/20/06) - added Developer menu to menu bar
(10/20/06) - add data/credits.html
(10/19/06) - change sim title to "Models of the Hydrogen Atom"
(10/5/06) - set default clock speed index = 2
(10/5/06) - attach wiggleme to gun's on/off button, remove wiggleme position from SimStrings
CVS tag hydrogenatom-0-00-04-2006-10-04
(10/4/06) - center align icons in Legend
(10/4/06) - don't reset the clock when sim speed is changed
(10/4/06) - add very kludgy ModelViewTransform, photons & alpha particles animating in atom box
(10/4/06) - implement Model
(10/4/06) - IModelObject marker interface for all objects that are part of the model
(10/4/06) - PhotonNodeFactory for creating pnodes for photon model elements
(10/4/06) - steal ModelViewManager concepts from molecular-reactions sim
(10/4/06) - add public interface for creating Image to PhotonNode and AlphaParticleNode
(10/4/06) - make AlphaParticleNode observer of AlphaParticle
(10/4/06) - make PhotonNode observer of Photon
(10/3/06) - change model to use radians (instead of degrees) for direction and orientation
(10/3/06) - add DebugUtils for looking at Photon and AlphaParticle properties
(10/3/06) - model Space that things move in and interact in
(10/3/06) - generate random start location for photons and alpha particles along nozzle of gun
(10/3/06) - use intensity to determine number of photons and alpha particles fired
(10/3/06) - generate random wavelengths when creating photons for white light
(10/3/06) - add wavelength range to Gun model
(10/3/06) - make GunControlPanel a ChangeListener of its subpanels, set Gun properties
(10/3/06) - make GunControlPanel an Observer of Gun, set subpanels
(10/3/06) - fix Gun subpanels so that the ChangeEvent source is the subpanel, not the individual JComponents
(10/3/06) - add lightType property to Gun
(10/2/06) - make GunNode and BeamNode observers of Gun model
(10/2/06) - change PhotonGun to "Gun" and make it capable of firing alpha particles, too
(10/2/06) - config wiggle me's position in SimStrings file
(10/2/06) - add a wiggle me to the gun on/off button
(10/2/06) - remove all specific default for font sizes from HAConstants, rely on SimStrings
(10/2/06) - use bold for all text, specify as HAConstants.DEFAULT_FONT_STYLE
(10/2/06) - lighten blue electron, increase size by 1 pixel
(10/2/06) - check how photon looks with UV color (good)
(10/2/06) - change magenta photons in GunTypeControl and LegendPanel to some visible color (green)
(9/27/06) - add StationaryObject, MovingObject, Photon, AlphaParticle, PhotonGun to model
(9/27/06) - delete photon image and asset files
(9/27/06) - revise photon look based on feedback
CVS tag hydrogenatom-0-00-03-2006-09-27
(9/27/06) - convert some shape-based nodes to images for performance
(9/27/06) - write "orb of light" photon in Java 2D
CVS tag hydrogenatom-0-00-02-2006-09-26
(9/26/06) - try using new photon image
(9/26/06) - add an electron to the energy diagrams
(9/26/06) - encapsulate "Drawings are not to scale" in its own class
(9/26/06) - distort orbits so that 6 orbits fit in animation region
(9/26/06) - factor common code out of Bohr and deBroglie nodes
(9/26/06) - update Spanish translations to include new stuff
(9/26/06) - add a legend to both play area and Help menu
(9/26/06) - add SimStrings.getChar, use it to get menu item mnemonics
(9/25/06) - darken gun type panel background
(9/25/06) - lighten Spectrometer snapshot panels
(9/25/06) - add Options menu to menubar, with "deBroglie wave view" choices
(9/25/06) - change gun control panel color to match purple gun
(9/25/06) - lighten ModeSwitch and AtomicModelSelector panels
(9/25/06) - shorten the horizontal lines on ModeSwitch
(9/25/06) - delete electron, proton and alphaParticle image files
(9/25/06) - generate Swing icons using ProtonNode and AlphaParticleNode
(9/25/06) - collapse ProtonNode, NeutronNode, ElectronNode into one superclass
(9/25/06) - create proton, neutron, electron images programmatically
(9/25/06) - create RoundGradientPaint
(9/22/06) - add separate resources for ModeSwitch big and small font size
(9/22/06) - vertically center labels in AtomicModelSelector's continuum subpanel
(9/22/06) - PSwing changes with Sam Reid to resolve problem with drawing transparent JComponents
CVS tag hydrogenatom-0-00-01-2006-09-21
(9/21/06) - Sam McKagan requested that I start publishing dev versions
CVS tag hydrogenatom-sandbox-2006-09-20
(9/20/06) - bugfix: couldn't drag spectrometer snapshots (pickable was set to false)
(9/20/06) - make all font sizes configurable via SimStrings file
(9/20/06) - configure animation region size in SimStrings file
(9/20/06) - major work on canvas layout code
(9/20/06) - move some constants out of module and into HAConstants
(9/20/06) - cleanup module code
(9/20/06) - use one node to draw animation box and perform clipping
(9/19/06) - add "view" representation of photon and alpha particle
(9/19/06) - added "view" representations of each atomic model, no animation
(9/19/06) - set pickable flag = false for all non-interactive nodes and their children
(9/19/06) - combine gun on/off control into GunNode
(9/19/06) - make gun nozzle smaller
CVS tag hydrogenatom-sandbox-2006-09-19
(9/19/06) - bugfix: beam should be white when "white" light type is selected
(9/19/06) - make beam straight, no fan-out
(9/18/06) - show a zoomed-in view of a little section of the box of hydrogen
(9/18/06) - delete BlackBox
(9/18/06) - make gun shoots a beam, color is white or monochromatic color (for light), or gray (for alpha particle)
(9/18/06) - point gun up at a 3D box of hydrogen
(9/18/06) - test harness for WavelengthControl
(9/18/06) - lots of fixes/enhancements to WavelengthControl
(9/18/06) - change UV and IR label on wavelength control, center them in their area (SM request)
(9/14/06) - change canvas background to black
(9/14/06) - move spectrometer checkbox above right of spectrometer
CVS tag hydrogenatom-sandbox-2006-09-14
(9/14/06) - translate to Spanish and test layout
(9/14/06) - change size and color of spectrometer image so it doesn't look the control panels
(9/14/06) - separate gun control panel out of GunNode
(9/14/06) - redo gun control panel, integrate gun type control, add sexy background
(9/14/06) - move spectrometer close button to upper left corner (ala Windows)
(9/14/06) - canvas layout tweaks
(9/13/06) - add close button to spectrometer, put "Show" button behind spectrometer
(9/13/06) - tweak canvas layout
(9/13/06) - make black box significantly larger
(9/13/06) - make energy diagrams slightly narrower
(9/13/06) - rewrite AtomicModelSelector, icon-based, vertical
(9/13/06) - change color of plum pudding to Color.RED to indicate positive charge (Sam McKagan's request)
(9/13/06) - redo mode switch to be more "fun"
(9/13/06) - change color of plum pudding to "plum" (0x993399)
(9/11/06) - add y-axis to energy diagram
(9/11/06) - bigger energy diagrams ala Discharge Lamps sim, draw placeholders using Java2D, delete images
(9/11/06) - create and manage spectrometers snapshots
(9/11/06) - title spectrometer snapshots with model name and snapshot#
(9/11/06) - title dynamic spectrometer with "Photons emitted"
(9/11/06) - add close icon to spectrometer snapshot
(9/11/06) - remove start/stop, reset, and camera buttons from spectrometer snapshot
(9/11/06) - new image for spectrometer, with title area
(9/11/06) - image for spectrometer close button
(9/11/06) - new gun on/off buttons
(9/8/06) - remove title from gun type control panel
(9/8/06) - implement module reset method for controls
(9/8/06) - refactor methods out of module into a controller class
(9/8/06) - make Piccolo graphic for black box using Java2D
(9/8/06) - make images for electron, neutron, billard ball, plum pudding
(9/7/06) - verified requirement that everything in the play area should resize when sim window is resized
(9/7/06) - bugfix: behavior of white and monochromatic radio buttons is reversed
(9/7/06) - discussed behavior of the various atomic models with Sam McKagan
(9/7/06) - replaced HANode with PhetPNode
(9/7/06) - fixed the way PhetPNode handles visibile and pickable flags
(9/6/06) - add placeholders for visual representation of atomic models
(9/6/06) - placeholder for spectrometer
(9/6/06) - extend PNode to handle pickable property in setVisible
(9/6/06) - add placeholder images for energy diagrams
(9/6/06) - add "Show electron energy level diagram" checkbox
(9/6/06) - add "Show spectrometer" checkbox
(9/6/06) - add "Drawings are not to scale" label
(9/6/06) - add atomic model selection control
(9/6/06) - add experiment/prediction mode switch
(9/6/06) - move contruction of control panels inside HAGunNode
(9/6/06) - hook up internal handlers in gun controls, to hide/show controls and set colors properly
(9/6/06) - add ability to set background/foreground color scheme for gun controls
(9/6/06) - rewrite gun control panels to be Piccolo nodes, not JPanels, so WavelengthControl can be added
(9/5/06) - click on wavelength control track to move to a value
(9/5/06) - bugfix: type a bogus value into wavelength control, it beeps but doesn't reset to previous value
(9/5/06) - clamp dragging of wavelength control to min/max range
(9/5/06) - test wavelength control with scale applied
(9/5/06) - enable range check for wavelength arg in WavelengthControl.setWavelength
(9/5/06) - fill wavelength control cursor with same color as knob
(9/5/06) - fix wavelength slider, cursor drags past minWavelength, can't reach maxWavelength (off by 3 nm)
(9/5/06) - integrate drag handling into wavelength control's ConstrainedDragHandler
(9/5/06) - consolidate/simplify UI update code for wavelength control
(9/5/06) - add cursor to wavelength control
(8/30/06) - move units outside textfield in wavelength control
(8/30/06) - set wavelength control range of 90-780 nm (far UV, no far IR)
(8/30/06) - WavelengthControl, a rewrite of spectrum slider for Piccolo
(8/29/06) - rewrite gun control panels
(8/29/06) - add "Gun Type" control (light or alpha particles)
(8/28/06) - continue fleshing out light gun controls
(8/25/06) - add control cable and control panel for gun
(8/25/06) - fix gun on/off button images
(8/25/06) - fix gun image
(8/24/06) - add basic gun graphic with on/off button
(8/24/06) - acquire gun image from QWI simulation, licensing cleared by Sam Reid
(8/24/06) - add custom clock control panel
(8/24/06) - create HAModule
(8/24/06) - create HAApplication
(8/10/06) - set up CVS commit notification
(8/10/06) - create JNLP and SimStrings files
(8/10/06) - set up project in CVS