How to use PHOTON
- If PHOTON is open, and you wish to escape from
it, type the character e.
- If PHOTON is open and you wish to activate commands
which may be in the Q1 file, type use Q1.
1. The two PHOTONS
In addition to the VR-Viewer, PHOENICS has two further modules for the
graphical display of flow fields. They are:
Both programs can be launched from the 'Run module' page; and opportunities
for running them are also provided on the page which appears when any case has
been run from within the 'Input-File Library' page.
PHOTON dates from the early years of PHOENICS, before the Windows
operating system even existed; and it is a still the module which
some users prefer to use.
The latter came into existence more recently. As its name suggests, its
main role is to enable users to do by way of Windows-style
mouse-clicks and dialog boxes what most users of PHOTON do by entering typed
commands (although PHOTON does also possess a menu mode of operation,
activated simply by entering 'm' at the keyboard ).
WinPHOTON can also accept typed commands; but, as well as having a
more-modern-looking menu system, it also has several functions
which PHOTON, and indeed even the VR-Viewer, do not possess.
Among these are:
- enabling users to display new variables, derived from the usual
ones by way of interactively supplied formulae;
- tabulating numerical values of user-selected varaiables at
- permitting users to declare and use integer, real or character
variables for use in macros, i.e. the so-called 'use' files which
contain a succession of PHOTON commands.
2. Help and Tutorials
Both programs contain Help and Tutorials which can be turned to at any
time during the operation of the program. Beginners are
advised to study at
least the first few items of these.
the tutorial is started by first activating the menu mode,
and then mouse-clicking 'Set-uP' followed by 'Tutorial'.
The WinPHOTON tutorial is activated via the 'Help' button.
3. Other sources of information
Click here for the PHOENICS Encyclopaedia article on PHOTON
For a full account of WinPHOTON, click the 'about PHOENICS' button at
the top of the Commander window, and then the WinPHOTON button which
appears on the left.