Picture Animation Picture Animation

Normally, one receives a single picture in response to a &PICTURE command. If, however, this command is issued from either the Static Process Menu or the Process Post-Processing Menu, an animation of the process will be plotted. For an animation, the number of frames can be controlled with the option:


Here, EVE_BEGIN is the first event for which a picture will be drawn, ESTOP is the last event for which a picture will be drawn, and EVE_INC is the increment at which pictures will be drawn between EVE_BEGIN and ESTOP. One can specify multiple sets of these three values, and pictures will be drawn according to each set. By default, all events in the process will be plotted. If this "goes by too fast", use this option with

     -EVENTS 0 9000 .1

which plots frames at .1 increments. If this is still too fast, change .1 to something smaller. Of course, increasing the increment will speed up the picture.

If one one has an animation, the option


will produce a movie. When this option is used, the movie will be written to the a file and then operation will return to normal. Here, M_TYPE is the format of the movie and it must be either: AVI or MPG. F_RATE, is the frame rate, and P_MULT is the "play multiple". This will result in a movie with frames between EVE_BEGIN and ESTOP (defined with the -EVENTS option discussed below) at

     P_MULT / F_RATE

second intervals. Notice that if P_MULT is .5, then the movie will be played at one half of the default speed. The defaults are to use a frame rate of 5, to play the entire process, and to use a play multiple of 1. If this is not smooth enough, you may want to increase the frame rate, but this will increase the time required to generate the movie. Finally, if you use M_TYPE of AVI, then Windows Media Player will not play it unless you have DviX codecs installed.