Graphical facilities in MX, unlike P1X, are relatively new and in fact do little more than duplicate facilities already in P1X (see 11.6.7.2). Essentially two options are available:
1) Frequency Distributions.
2) Trip Length Distributions
plus a parameters sub-menu that services both. Users who require more sophisticated graphical displays are advised to dump the matrix/matrices into, e.g. EXCEL (10.15) and use the facilities there. (But please advise DVV of any display forms that you would regard as essential and/or specific to transport planners.)
The trip length distribution (TFD) option is only available if you have two or more matrices including the internal matrix; one defines the “trips” and the other the “costs” although there are no checks whether or not the matrices you select are indeed trips and costs. (Recall that cost matrices are generally obtained using SATLOOK; see 15.27). It is also possible to print trip length distributions from two different input trip matrices simultaneously (in which case at least two external .ufm files plus a different internal matrix are required).
See also 10.9.3 for non-graphical methods to calculate TFDs.
MX can plot either to the screen or to other external devices defined in GRAF.DAT. The screen image may also be dumped to a bitmap file (11.3.5) by entering ‘X’ when the image is on the screen.