Creating dynamic sequences

GDDM-PGF V2R1.3 OPS User's Guide

Creating dynamic sequences

GDDM-PGF V2R1.3 OPS User's Guide
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OPS contains a number of commands to produce dynamic, or even animated, sequences.

Dynamic means that the picture changes under control of the user or presenter, typically by making new objects (text or drawing) appear when the user scrolls forward in the presentation.

In an animated sequence, the picture changes without any interaction from the user or presenter. Typically, objects change their shape (as they do in cartoons).

Your ability to provide animated sequences depends on the type of terminal in use. On a PS type (such as a 3279), the screen is presented in a single step (or a few steps, depending on the buffer size), so the user does not see the order in which the objects are placed, and animation is quite effective. On a vector-type screen (such as a 3192 G), the picture is drawn line by line, so the user can clearly see how the picture is created, reducing its value as an animation.

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