Please refer to Getting Started guide for installation procedure, etc.
NOTE: DigiFlow is supplied as a self-extracting archive. This should be downloaded and run from the directory in which you wish DigiFlow to be installed. (This can be anywhere in your file system, but it is recommended that you use a standard location such as C:\Program Files\DigiFlow\.) See Getting Started for full details.
From version 3.3, DigiFlow is available in two flavours: DigiFlow and iDigiFlow. The prefix “i” on the latter indicates a version of DigiFlow built using an Intel compiler for the latest generation of Intel processors. It is recommended that for older machines you continue to use the standard DigiFlow version (without the “i” prefix).
Unlike most software, we aim to bring you improvements in DigiFlow at the earliest opportunity, although the official version number will be updated only when there are sufficient differences. Instead, DigiFlow is distinguished by the build date. The self-extracting executable is named based on the date as DigiFlow_yyyymmdd.exe (or iDigiFlow_yyyymmdd.exe), where yyyymmdd is the date (in year/month/day format) of the build. You can use the Help\About screen to determine the date of the DigiFlow build you are using. Those with commercial and site licences can configure DigiFlow to automatically check for and download new builds as they are released.
iDigiFlow_20110704.exe Fixes a minor problem with DigiFlow adding itself to the system PATH whereby DigiFlow’s path sometimes had a spurious trailing space.
iDigiFlow_20110616.exe This new release of is available in two different forms: DigiFlow.exe and iDigiFlow.exe.
The standard DigiFlow.exe is built using the Compaq Visual Fortran compiler that has been employed since version 1.0. This remains the version of choice for older systems, especially those running Windows 2000 or Windows XP.
The new iDigiFlow.exe is built using the Intel Visual Fortran compiler (the "i" here means "Intel", not some desire for an Apple produce). This version works better with 64 bit Windows 7 and has a much smaller memory footprint. However, it will not operate on many older machines and there are almost certainly a few unresolved issues.
DigiFlow_20110616.exe contains the standard DigiFlow.exe.
iDigiFlow_20110616.exe contains the 'new' iDigiFlow.exe.
The two versions of DigiFlow have been given different names so that they can reside on the same system more comfortably. However, they MUST be installed into different folders. Under most circumstances it will be necessary to manually add the installation directory to the Windows PATH if you have two versions of DigiFlow installed.
Note that automated updates are not yet available for iDigiFlow.exe.
DigiFlow_20100702.exe Maintenance release including some minor enhancements, improved Windows 7 installation procedure and bug fixes. See release notes for further details.
DigiFlow_20100113.exe Further enhancements to dfcConsole. New and enhanced dfc functions. Minor bug fixes. See release notes for further details. Note: if you are using a BitFlow framegrabber, then it is strongly recommended that you upgrade to v5.30 of their driver.
DigiFlow_20090527.exe Significant enhancements to dfcConsole. New dfc functions. Support for BitFlow SDK5.2. See release notes for further details.
DigiFlow_20090206.exe Problem with the creation of the LicenceRequest.dat file fixed. Splash image restored. See release notes for further details.
DigiFlow_20090107.exe Minor enhancements, including new variant on pattern matching algorithm used in PIV and Synthetic Schlieren. Fixes bug with Slave and Recipes. See release notes for further details.
DigiFlow_20080624.exe This build fixes a further glitch in the installation for new installs. Additionally, the build has some further modest speed improvements for dfc loops and adds a variety of new dfc functions (including further enhancement to camera control, drawings and calculation of power spectra), some new recipes, and further improvements to \psfrag support. It also cures a bug relating to the assignment of array spans of the form a[:,j,:]. See release notes for further details.
DigiFlow_20080608.exe This build fixes a glitch in the process of requesting licences for new installations in DigiFlow_20080528.exe. It also offers some slight performance improvements in the dfc interpreter. See release notes for further details.
DigiFlow_20080528.exe Major update of DigiFlow, featuring enhanced functionality, smaller memory footprint, improved interpreter efficiency and many new interpreter functions. Key new features include a reduced memory footprint and support for the /3GB boot.ini startup option, support for avi files, improved generation of psfrag compatible eps files, density perturbation calculation as part of synthetic schlieren, reduced noise for piv with very small velocities, further support for colour images including images from cameras with Bayer colour mosaic filters. Substantial improvements in the dfc interpreter include improved performance, particularly after compile(..), a new reverse polish language interpreter, the introduction of index arrays, and many new functions ranging from a generalised multigrid solver to new camera control functions. DigiFlow now supports version 5.00 of the BitFlow SDK. This will allow the use of the newer Karbon and Neon framegrabbers. Support for zlib, FreeImage and GhostScript libraries has also been brought up to date. See release notes for further details.
DigiFlow_20071128.exe Various minor bug fixes, improvements and additions. See release notes for further details.
DigiFlow_20071107.exe Various improvements and additions. Reduced memory footprint for PIV and Synthetic Schlieren. See release notes for further details.
DigiFlow_20070918.exe New ‘Close’ button on most dialogs, and capture region for live video. Many performance enhancements and fixes of minor bugs. Greater consistency for PIV and Synthetic Schlieren calculations. See release notes for further details.
DigiFlow_20070510.exe Major update of DigiFlow, featuring improved performance, parallel processing (commercial version only), expanded macro language, and improved crash handling. See release notes for further details. Note that the distribution method has changed from zip files to self-extracting executables.
DigiFlow_31Oct2006.zip Problem fixed with particle identification in PTV subsystem. New LaTeX-like formatting of text in plots and drawings. See release notes for further details.
DigiFlow_16Oct2006.zip Various enhancements. New version of FreeImage incorporated. New dfc functions. See release notes for further details. New ‘Site Licence’ option available.
DigiFlow_9May2006.zip New Slave Process tool. New dfc functions, including camera_grab(..). Bug fix with synthetic schlieren geometry. See release notes for further details.
DigiFlow_5Apr2006.zip Support for BitFlow SDK4.50 and support for R64 and R64e framegrabbers. Support for RS232 serial interface for CameraLink cameras. New Optical Flow feature. See release notes for further details.
DigiFlow_5Dec2005.zip New weighted time average and ensemble mean processing. New “Compact” output option for PIV and Synthetic Schlieren. New dfc filtering and drawing functions. New ability to generate Encapsulated PostScript of vector graphics. Minor bug fixes. See release notes for details.
DigiFlow_3Aug2005.zip Minor bug fixes. New ‘plot’ family of dfc functions for simplified plotting of basic graphs. See release notes for details.
DigiFlow_23Jun2005.zip A number of new features and dfc functions, plus minor bug fixes. See release notes for details.
DigiFlow_31Mar2005.zip Minor bug fixes when dealing with super-large images and post-processing of velocity fields. New dfc functions for finding power spectra using Maximum Entropy Method.
DigiFlow_16Feb2005.zip Introduction of Commercial Licences to cover more advanced features than can be accessed under the Free Licence available for the beta release; Free Licences continue to be available to non-commercial users. Significant enhancements in a number of areas. New, advanced algorithms for pattern matching available in the commercial version.
Click here for details of old versions of DigiFlow.