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Change Log

Version 6.3.0 (released 13 Feb 2025)

• switched bundled Java runtime to OpenJDK
• enabled marking points without a keyboard on iPad and other mobile devices
• converted all legacy quicktime mov files to mp4
• fixed bug in progress monitor when loading videos
• fixed bug autotracking along a line
• fixed bug playing mp4 videos with newer codec

Version 6.2.0 (released 24 Jun 2024)

• added URL links, Data files, EJS simulations to library resource types
• enabled online collections to open Tracker, video and image resources in Tracker Online
• enabled online collections to open Data resources in DataTool Online
• enabled online collections to open EJS resources in WebEJS
• enabled fully functional standalone Library Browser Online
• added MediaInfo to JS to read video properties without requiring preview in Tracker Online

Version 6.1.7 (released 03 Jun 2024)

• improved video synchronization between desktop and online versions
• enabled Tracker library collections to be opened with drag-n-drop
• prevented computer entering sleep mode when autotracking long videos
• updated Greek translations

Version 6.1.6 (released 16 Jan 2024)

• added preferred pointmass footprint to preferences dialog
• increased the number of default names available for pointmass
• fixed bug when displaying multiple text columns in data table
• added auto-deletion of invalid pointmass positions
• added a warning if a filename contains the invalid character "&"
• centered the origin on new videos by default
• added Russian and Ukrainian translations, updated others

Version 6.1.5 (released 4 Oct 2023)

• fixed bug preventing export of selected data in Export Data dialog

Version 6.1.4 (released 2 Oct 2023)

• added text columns to exportable data
• enabled exporting data with or without headers
• improved control and display of PDF and other support documents
• removed external models from reference frame choices
• fixed bug not updating derivatives when changing reference frame
• fixed bug preventing radial distortion filter from loading into Tracker
• fixed bug preventing full exit when closing with empty tabs
• updated translations for several locales

Version 6.1.3 (released 5 May 2023)

• enabled setting time unit along with length and mass
• fixed bug resulting in bad resource IDs when loading ComPADRE Tracker collection into the library browser
• fixed bug preventing perspective filter view from responding to inspector tab changes
• fixed bug not finding bundled Java VM when launching Tracker
• fixed bug causing negative array lengths when exporting some image video clips
• updated translations for several locales

Version 6.1.2 (released 14 Feb 2023)

• switched to H.264 encoding when exporting MP4 and MOV videos for Tracker online compatibility
• added trail length to preferences dialog
• simplified initial marking of calibration tools, line profiles, RGB regions
• expanded zoom range for video and world views
• added accelerator keys to Right & Bottom view items
• updated translations for several locales
• fixed frame renumbering bug when saving video clip in Save Project dialog
• fixed bug causing notes to fail to display when changing tabs
• fixed bug causing freeze when opening a TRZ file using drag-n-drop
• added Innovative Uses of Video Analysis collection to Tracker Home Library in library browser

Version 6.1.1 (released 6 Jan 2023)

• enabled exporting videos of zoomed world view
• improved library browser html display and refresh
• improved toolbar overflow button for narrow layouts
• improved sub-pixel interpolation when autotracking
• enabled syncing of parameters when building multiple models
• fixed bug when importing video/coordinate system/tracks from TRK or TRZ file
• fixed bug causing library browser to stall when internet unavailable or bad urls
• fixed numerous other bugs: pencil drawings, video properties, undo/redo, printing

Version 6.1.0 (released 15 Dec 2022)

• improved world view with zoomable window
• improved auto-pasting external model tracks
• added more complete help for world view
• added ability to attach measuring tools to RGB regions
• added File|Reload tab menu item
• added ability to save and open zipped image files as videos
• improved handling, control and display of decimal separator
• improved drawing and selecting tape measures and protractors
• improved refresh of plots and tables
• improved refresh of fits in DataTool
• improved popup scale setters in all plots
• improved handling and display of image videos with multiple image sizes
• fixed bug when parsing external model data strings
• fixed bug saving and loading some image videos
• fixed bug preventing right pane (plot, table) from remaining closed
• fixed bug preventing custom fit creation with FitBuilder in DataTool
• fixed bug preventing Tracker Online from saving valid TRZ files

Version 6.0.10 (released 22 Aug 2022)

• added overflow button to provide functionality for buttons that overflow available toolbar space
• simplified toolbar and GUI
• added maximize button to toolbar in Tracker Online
• added Help item to open Tracker Online from Java Tracker and Tracker Home from Tracker Online
• fixed bug causing duplicate TRK files in multi-tab TRZ projects
• fixed occasional bug when setting scale with calibration stick

Version 6.0.9 (released 8 Jul 2022)

• changed external models so data elements now map to video clip steps, not video frames
• improved line profile multi-frame datatable view
• fixed bug causing incorrect frame durations when loading image videos
• fixed bugs when parsing delimited text data with spaces in titles or comma delimiters in integer data
• fixed bug refreshing the gaps button in datatable views of point masses
• fixed bug updating data when stepping through particle models

Version 6.0.8 (released 5 Apr 2022)

• improved File|Export|Data to export multiple track data to a single text file
• fixed resizing/maximizing bugs in the main Tracker frame and world views
• fixed external model bug preventing full data updates for multi-point models
• fixed bug showing incorrect highlights in some plots with comparisons

Version 6.0.7 (released 1 Mar 2022)

• fixed several bugs including AVI black image bug

Version 6.0.6 (released 12 Jan 2022)

• improved initial parameter estimation in DataTool curve fitter
• enabled fixing some parameters of a fit function while autofitting the others in DataTool curve fitter
• improved formatting of reported parameters with uncertainties in DataTool curve fitter
• fixed bug causing AutoTracker to fail

Version 6.0.5 (released 4 Jan 2022)

• added parameter uncertainty reporting to all functions in DataTool curve fitter
• fixed bugs: table column ordering in DataTool, model builder parser, area shading in DataTool, others

Version 6.0.4 (released 21 Dec 2021)

• added highlight/shadow video filter to enhance highlights or shadows using a logarithmic conversion
• expanded shape choices for RGB regions: ellipses, rectangles, freeform polygons
• added datatable time view for line profile RGB/luma data that varies with time
• improved display of parameter uncertainties in curve fits including plotting fit lines with "uncertain" width
• fixed bug saving image paths in TRK files
• fixed bug loading Tracker projects with ZIP extension

Version 6.0.3 (released 29 Oct 2021)

• fixed bugs in kinematic model and model builder

Version 6.0.2 (released 15 Oct 2021)

• added ability to load, save and export zip files containing numbered jpg or png images
• improved CircleFitter can now calibrate the scale to its radius and set the origin to its center
• fixed handling of angular variables in Model Builder
• numerous GUI improvements
• numerous bug fixes

Version 6.0.1 (released 30 Aug 2021)

• added progress bar with cancel option for video- and tab-loading operations
• improved memory management and garbage collection to keep memory requirements low
• optimized more code for even faster operation
• improved coordination with Library Browser collection "Recent Local Files"
• numerous bug fixes

Version 6.0.0 (released 3 Jun 2021)

• faster loading and playback: streamlined and optimized code, improved video stepper
• Java and JavaScript versions co-compiled so same Tracker runs on the desktop and in a browser
• developed HTML5 video engine for JS Tracker
• updated Xuggle video engine to version 5.7 for Java Tracker, so now runs in a 64-bit VM on all platforms
• redesigned toobar with new track visibility button, measuring tools button, font size button and memory button
• added zoomable ruled scales to tape measures and protractors
• added New button to create new tracks directly from the TrackControl
• added to AutoTracker: keyframe tethering for less drift and autoskip to continue searching when possible matches are found
• added portrait and landscape layouts for different screen orientations
• added arrows and ellipses to pencil drawings for better annotation
• added rotational velocity and acceleration data to protractor
• added standard deviations to R, G and B data in RGBRegion
• added download and search target buttons to LibraryBrowser
• enabled copying fit parameters to clipboard (DataTool)
• enabled copying data with either full precision or as formatted (DataTool)

Versions 5.2+ (released in parallel with versions 6.0+)

• identical to version 6.0+ except uses older Xuggle 3.4 (like all earlier Tracker versions)
• runs in 32 bit Java VM on Windows
• runs on older versions of MacOS

Version 5.1.5 (released 13 May 2020)

• moved Tracker documents folder from ~/Documents/Tracker to ~/Tracker on OSX due to new permission restrictions
• fixed bugs causing intermittent freeze on launch and in Library Browser
• fixed bugs causing right-click failure in Library Browser, parse failure in model builder, deletion failure for non-visible tracks

Version 5.1.4 (released 10 Apr 2020)

• signed and notarized installers for OSX (required for Catalina)
• changed default save operation so TRZ tabs are saved as TRZ files
• improved naming of saved TRZ files to avoid overwriting existing files
• fixed bug causing failure to save TRZ with no video
• set correct chooser directory when first installed on OSX
• added popup menu to delete items from the Recent Local Files collection in Library Browser

Version 5.1.3 (released 13 Nov 2019)

• packaged Mac OS X installers as dmg files
• removed 32-bit code preventing installers from running on OS X Catalina
• fixed apple event handlers and dock icon on OS X
• improved future upgrading on OS X

Version 5.1.2 (released 13 Aug 2019)

• fixed bug causing loss of menubar when changing languages
• added auto-update to cached Tracker library collections containing urls with http protocols
• fixed bug preventing correct termination of image sequence loading
• improved testing for web connection

Version 5.1.1 (released 11 July 2019)

• changed all web address protocols from http to secure https (will be required by Tracker server starting fall 2019)

Version 5.1.0 (released 5 June 2019)

• greatly simplified building, saving and using tracker project files (TRZ)
• enabled adding multiple tabs to a tracker project file (TRZ)
• added "recent files" collection to the Library Browser with html information about tracker projects (TRZ) recently opened in Tracker
• added Online Help and Online Forum to Help menu
• added automatic translation of Online Help usng Google translation
• added Quick Start Video Tutorial to Help menu
• added popup notification when new versions released
• fixed bug causing occasional failure when exporting TRZ files
• fixed bug causing error loading corrupted TRK files

Version 5.0.7 (released 9 Mar 2019)

• improved number entry to accept both comma and period as decimal separator in all locales
• fixed error producing artifacts when using perspective filters
• improved image quality in radial distortion filters
• greatly accelerated loading of array strings in TRK files
• fixed incorrect decimal separator displayed in PT locale

Version 5.0.6 (released 15 Aug 2018)

• added path length L to point mass data--displayable in tables and plots
• improved "Compare With" dialog to easily compare data from multiple tracks (right-click plot, choose "Compare With")
• fixed bug preventing second point of a calibration point pair to load correctly from TRK files

Version 5.0.5 (released 12 May 2018)

• fixed minus sign bug (in some locales) when copying data from tables
• refreshed data when dragging or nudging points

Version 5.0.4 (released 1 May 2018)

• enabled selecting multiple steps by right-clicking or right-dragging in plot view
• added highlights to show multiple selected steps in plot view
• added check for upgrades item to help menu
• enabled toggling autofill on/off with A key
• verified correct decimal separator behavior

Version 5.0.3 (released 21 Apr 2018)

• added autofill option to Gaps button to automatically fill data gaps using linear interpolation
• added preferences to set default point mass footprint and trail length, enable autofill, and show data gaps in tables
• improved acquisition of RGB data by RGB regions
• fixed bug preventing renaming parameters in some locales
• fixed bug causing spurious decimal separator in some locales

Version 5.0.2 (released 4 Apr 2018)

• added Gaps button to table views to fill data gaps (skipped steps) using linear interpolation
• added keystrokes and an option in the preferences dialog to scrub rather than zooming with the mousewheel
• added an option in the preferences dialog to auto-mark calibration sticks (centered in the view) rather than marking the ends with the mouse
• fixed bug preventing marking calibration sticks on frames other than the first
• eliminated support for Java 6

Version 5.0.1 (released 15 Mar 2018)

• bundled Java JRE so Tracker runs as a stand-alone application on all supported platforms
• improved instant upgrade process--most new tracker version upgrades will be instantly downloaded and launched
• added search capability to Tracker Help--results are shown with both context and links to help
• added physical units (length, mass, time) that are displayable in fields, tables and plots. Length and mass units are user-settable
• improved annotation drawings with labels and Drawing Control
• improved number formatting with settable decimal separators
• streamlined calibration process when using calibration stick or tape: click, click, enter
• enabled copy/paste for video filters--copy filter from one video, paste into another
• added red skip lines to datatables to identify skipped steps in point mass tracks
• added point count data and no-circle footprint to Circle Fitter
• simplified setting new memory size with toolbar memory button
• improved the search algorithm for installed Java JREs including the bundled JRE
• eliminated Apple requirement for "legacy Java 6" on OS X
• eliminated QuickTime support
• eliminated support for Xuggle 5.4
• fixed numerous bugs and improved datatable sorting and display

Version 4.11.0 (released 16 Sep 2017)

• added start and end frames to pencil drawings
• improved upgrade process so most new tracker versions are instantly downloaded and launched--no installer needed
• added user preference to auto-reset video to step 0 when creating new tracks
• improved mouse coordinate display in Data Tool--now shares user-set datatable number format including units

Version 4.10.0 (released 30 Aug 2017)

• added a Pencil tool button to the toolbar to hand-draw colored pencil lines on videos
• improved the resizing behavior of the Digital Library Browser
• improved the ease of comparing multiple tracks in a single plot

Version 4.9.8 (released 17 Jun 2017)

• changed to semantic version numbering

Version 4.97 (released 03 May 2017)

• added a Stamp action to particle models--creates a stamped point mass that clones the positions of the model
• increased the maximum dataset length to 64K for very long videos
• improved resizing behavior of fonts, buttons and other GUI elements
• added autoscroll to datatables to keep current frame row visible
• fixed bug to correctly read data containing comma decimal separators
• added and updated languages

Version 4.96 (released 07 Feb 2017)

• added menu item to Circle Fitter "data points" button popup to copy data point positions to clipboard
• added "search fixed area" and "copy match data" options to the Autotracker
• fixed bugs associated with custom cursors
• added and updated several languages
• improved Xuggle deployment to enable Xuggle video engine in non-standard installations

Version 4.95 (released 20 Sep 2016)

• added buttons to increase and decrease font/icon sizes with a single click
• fixed bugs in perspective filter inspector behavior

Version 4.94 (released 2 Aug 2016)

• added a Go To dialog to jump directly to a desired frame, step or time
• enabled setting number formats for individual tracks, all tracks of a given type or all variables with given dimensions
• fixed bug preventing Tracker files opening with a double-click on OSX
• modified TRZ loading so all file types associated with a default desktop application are supported
• changed name "data track" to "external model"
• improved management of extra blank frames for external models after the video end
• improved auto-paste action and parsing of external model data with no headers

Version 4.93 (released 28 May 2016)

• created Number Formats dialog to set number formats for fields and tables
• added auto-paste option to automatically update data tracks when new data is copied to the clipboard
• improved text data parsing
• improved protractor hints and footprints to distinguish base line from angle arm
• improved garbage collection to recapture memory when videos, video filters and tracks are removed
• enabled larger RGB regions
• made several minor improvements to the GUI
  
• fixed bugs in autotracker, TRZ, stretched vectors, others
• added "autodetect-java" switch to silent installation options
• fixed installer bug that overwrote tracker.prefs files

Version 4.92 (released 23 Jan 2016)

• greatly improved circle fitter tool--now attach to steps or tracks
• improved data tracks--now with multiple points and connecting lines
• improved perspective filter--better tracking of dynamic perspectives
• improved undo/redo--better descriptions and functionality
• added new strobe filter
• added rotation angle to protractor data
• fixed numerous bugs
  

Version 4.91 (released 1 Oct 2015)

• changed Tracker Help web site urls to point to physlets.org server
• fixed several bugs: hiding notes, displaying Circle Fitter inspector, setting VM preference

Version 4.90 (released 3 Aug 2015)

• added external model tracks with positions determined by an external data source (file, clipboard or EjsS simulation)
• added circle fitter tool that fits a circle to a set of points
• improved user control of font, icon and footprint sizes
• improved data function autoloading with autoload manager
• added fit function autoloading with autoload manager in Data Tool
• enabled data shifting in Data Tool
• added green highlights to the working data points in Data Tool
• added option to measure fit function rather than data in Data Tool
• added user-settable descriptions of parameters and functions in data builder, model builder and fit builder
• added TRZ descriptions to Tracker notes when loading TRZ files
• added "Save Video As" menu item to file menu
• restored and improved "export TRK" file menu item
• raised default memory size to 256MB when launching Tracker
• added desktop icon option to installer
• fixed bug causing dynamic models to be drawn incorrectly in non-default reference frames
• fixed datatable header rendering bug on OSX
• fixed bug preventing Tracker from launching when tracker.prefs file is missing
• eliminated obsolete tracker_starter.prefs

Version 4.87 (released 10 Nov 2014)

• improved launch mechanism so all environment variables are set at runtime--no more global TRACKER_HOME and XUGGLE_HOME
• changed Xuggle installation directory to child (Windows, Linux) or sibling (OSX) of Tracker directory
• eliminated requirement for xuggle jars in Java extensions
• added QTJava.zip to installer for OSX 10.10 to enable QuickTime engine
• improved "About QuickTime" and "About Xuggle" dialogs
• fixed bugs causing Tracker Preferences dialog to show incorrect settings
• enabled attaching calibration stick ends to point masses
• added Preferences File menu item to Help|Diagnostics
• changed Autotracker so it automatically selects tracks only when they are newly created

Version 4.86 (released 28 Jul 2014)

• added full paths of TRK and video files to tab tooltips
• added independent x-/y-axis look-ahead algorithms when autotracking
• improved desktop display control for associated HTML and PDF documents (Documents button)
• added ability to display page view HTML files on the desktop
• improved "Save As" action: TRK files now saved with corresponding video by default
• fixed autotracker perspective filter bug
• fixed thumbnail bug in Export Tracker Zip dialog
• added Java Finder option to installer--uncheck if installer freezes (rarely).

Version 4.85 (released 5 Apr 2014)

• added grid overlay to coordinate axes
• added use of "launcher" point masses to set initial values of dynamic particle models
• set up mechanism to resize fonts, added font level to preferences and Edit menu
• added ability to adjust numerical values in model/data/fit builders by dragging mouse
• save/load datatable column order and width in TRK files
• run Tracker from USB drive by downloading and unzipping Tracker-USB.zip
• write start log and preferences to code base directory to facilitate USB drive operation
• eliminated global DYLD_LIBRARY_PATH environment variable on OSX

Version 4.84 (released 28 Jan 2014)

• fixed bug causing tracker-starting process to fail in some network installations
• added diagnostic alerts when unable to copy video engine files in some network installations

Version 4.83 (released 1 Jan 2014)

• added editable text columns to data tables--suitable for comments or entered data
• added "Show zero" menu to plot views--useful when all plotted values have the same sign
• added ability to set PointMass velocity and acceleration colors independently
• added ability to stretch PointMass velocity and acceleration vectors independently
• improved comparison of multiple tracks in plots
• added track name subscripts to comparison data sent to Data Tool
• improved tracker-starting process and added a Start Log item to the Help menu
• improved VM search process during installation

Version 4.82 (released 03 Oct 2013)

• added ability to select, move and/or delete multiple points
• added "browse cache" button for easier cached file searches
• fixed undo/redo bugs and expanded the number of undoable actions
• fixed tape measure and calibration stick bugs, eliminated calibration stick "fixed length" menu item
• fixed Tracker ZIP bugs related to web videos and filenames with disallowed characters
• eliminated video frame count limits
• added finnish translations and separated portuguese BR and PT translations
• updated help files

Version 4.81 (released 29 Jul 2013)

• enabled setting measuring tool lengths and angles directly from the toolbar
• enabled setting coordinate system origin directly from the toolbar
• added arabic and czech translations
• improved handling of locale changes
• added OGG video to accepted video formats
• changed fit parameters to display in scientific notation
• improved documentation of acceleration (second derivative) and autotracking algorithms
• fixed bugs in tape measure, plot labels

Version 4.80 (released 26 Feb 2013)

• added "Auto-refresh" checkbox to refresh button so auto-refresh can be turned off for faster performance when marking long tracks
• added radial distortion filter to correct distortion associated with fisheye and other lens types
• created new trk/trz document icons for all platforms
• added non-default reference frames to saved properties in trk files
• added "Autoload" button to Data Builder to automatically load data functions into Tracker at start-up
• expanded range of play rates to 1% - 1000%
• added key shortcuts to video player: HOME=start step, END=end step, Shift-PageUp=back 5 steps, Shift-PageDown=forward 5 steps
• added "Set time to zero" item to video player readout and slider popup menu
• changed "Copy Image" item in main video view popup menu--right-dragging a zoom box before copying now copies only the boxed image
• added "Deinterlaced video" to content options in video export dialog--converts 30 fps interlaced video to 60 fps deinterlaced
• added pixel coordinates to point mass data
• added full- and half-size image sizes to thumbnail dialog
• fixed bugs in autotracker match image, importing data on OSX, mat resizing when applying rotate/resize filter, DL browser resource file not found

Version 4.751 (released 16 Jan 2013)

• fixed bug when attaching ends of tape measure or protractor
• fixed bug copying image videos to Tracker ZIP files
• fixed Windows installer bug assigning trz extension to MIME type "application/zip"
• added Greek translations

Version 4.75 (released 19 Dec 2012)

• export self-contained Tracker ZIP experiments (trk/video/html/images/pdf) in single step
• browse self-documenting Tracker ZIP experiments with Digital Library Browser
• added button to reopen PDF/HTML documentation associated with Tracker ZIP experiments
• created "trz" file and mime type for Tracker ZIPs, associated "trz" with Tracker on all supported platforms
• warn and exclude particle models from Tracker ZIPs when startframe not in clip
• added search capability to Digital Library Browser
• added searchable metadata to Digital Library resources
• Digital Library Browser automatically catalogs local directories and resources
• PHP script automatically catalogs server directories for Digital Library Browser
• Digital Library Browser caches collection data for efficient searches
• Digital Library Browser caches video thumbnails and HTML pages for faster response
• added Open Recent menu, Close Tab item, Close All item to Digital Library Browser File menu
• added search and cache tabs to Library Manager in Digital Library Browser
• add fourier analysis to Data Tool
• Data Tool data now saved in tracker files (trk)
• Data Tool updates automatically when data changes in Tracker
• reverted to Xuggle 3.4 but Tracker still supports Xuggle 5.4 with warnings
• added .MOD and .MPG extensions to recognized video types
• added image video "read-only" mode that uses less memory by loading only current image
• improved and simplified setting of Java VM bitness and video engine
• improved diagnostics, including help for Windows users without 32-bit Java VM
• fixed bug causing very long tracks to hang when loading
• use capital letters A, B, etc for fit parameters in DataTool
• added "Delete selected step" to track menus
• added warnVariableDurations to preferences so warnings can be turned off
• updated Tracker icons with sizes from 16x16 to 1024x1024

Version 4.72 (released 27 Aug 2012)

• fixed bug causing freeze at 80% progress when opening vers 4.71 trk files with multiple tracks
• increased maximum frame count to 300,000 (2h 45m at 30fps, 5m at 1000fps)
• upgraded installer to support Mac OS X 10.8 (Mountain Lion)
• improved progress dialog so true progress is shown when opening long videos with Xuggle

Version 4.71 (released 25 Jul 2012)

• added refresh HTML button to OSP Digital Library Browser
• fixed video filters not loading from trk files
• eliminated endless loop trying to create thumnail images when not online
• fixed bug saving local video paths with relative addresses

Version 4.70 (released 11 Jul 2012)

• autotracker can now mark point masses, origin and axis, calibration tools, measuring tools, RGB regions, perspective filters
• improved autotracker look-ahead for better predictability
• measuring tape and protractor now generate frame-by frame data for tables and plots
• measuring tape and protractor ends can now "attach" to independent point masses for analysis
• plot multiple tracks on a single plot by choosing "Compare With" from the right-click popup menu
• File|Export|Clipped Tab item exports current video clip with synchronized Tracker file for compact sharing
• faster marking
• improved diagnostics, especially for Xuggle and QuickTime
• Xuggle upgraded to ver 5.4
• new "refresh tracks and data" button available to force screen and data refresh
• improved odd-frame-duration warning when opening a video, including button to automatically clip odd frames.
• Edit|Preferences menu item available to open Preferences Dialog even when no tabs are displayed
• Preferences Dialog now includes Startup Log Level
• set Java Virtual Machine bitness (32/64) in Preferences Dialog on OS X
• calibration tools submenu added to tracks menu (duplicates calibration tool button "New" menu)
• OSP Digital Library Browser displays thumbnail images of web videos
• Tracker Digital Library now has a " How to Share" Collection--open it with the OSP DL Browser
• ComPADRE collections in OSP DL Browser have expanded subject lists
• DataTool now provides estimated uncertainties for linear best fit parameters
• Data Tool Fit Builder and Data Builder now provide saving/loading of custom fit/data functions
• new circular Tracker icon with higher resolutions
• OS X application menu now fully functional
• fixed setting the radius of a circle footprint
• fixed setting start and end frames in Clip Settings dialo
• fixed Open File dialog failing to open
• fixed magnified videos loading incorrectly in trk files

Version 4.62 (released 17 Jan 2012)

• created online change log (this file)
• tracker_starter preferences (Java VM, Tracker version, executable files) now set in Tracker
• tracker_starter preferences stored in .tracker.prefs file (.tracker_starter.prefs deprecated)
• Relaunch button always visible and enabled in Preferences dialog
• relaunching uses tracker_starter so all preferences are respected
• changed clip inspector GUI: options now stacked vertically with titled borders
• videos are now opened at magnification "to fit"
• added video frame renumbering to correct track-video synchronization errors when using different video engines
• starting Tracker by double-clicking tracker.jar respects preferred Java VM
• fixed tabset loading from zip files
• improved Help|About dialogs, especially About Xuggle
• made Tracker_README file viewable from Help menu
• fixed drag-and-drop operation on Linux
• installer copies Xuggle jars into Java extension directories and TRACKER_HOME
• installer runs in unattended mode
• installer now associates *.trk files with Tracker on all platforms
• changed Derivative interface to accomodate multiple derivatives
• added new BounceDetect algorithm that smooths derivatives and detects sudden velocity changes (contributed by Kevin Karplus)
• added new Algorithms dialog to enable users to choose alternate derivative algorithms

Version 4.61 (released 11 Dec 2011)

• improved caching of internet files
• changed default cache locations
• users now warned if downloading to cache fails
• user can change cache location and clear cache in Preferences dialog
• added Help|Threads dialog for trouble-shooting
• added MTS videos to recognized types
• added ability to create multiple calibration tools
• restored requirement that calibration points and offset origins be marked by the user.
• fixed bug preventing loading of files with paths containing non-ASCII characters

Version 4.60 (released 28 Nov 2011)

• improved autotracker with key frames, better GIU, underlying support for non-PointMass tracks

Version 4.50 (released 26 Aug 2011)

• added OSP digital library browser
• added open url dialog
• added export video clip dialog

Version 4.05 (released 28 May 2011)

• added perspective and rotate video filters
• added protractor and read-only tape measure tracks

Version 4.00 (released 28 Feb 2011)

• added Xuggle video engine
• created installers for Windows, OSX and Linux

Version 3.10 (released 14 Jan 2010)

• added Open Recent item to File menu
• added Clone item to Tracks menu

Version 3.00 (released Dec 2009)

• new GUI with non-track items on toolbar, track items on new trackbar
• added memory management