Review of Visualisation Systems
Apart from the creation of image formats, as detailed above, the only other standard module for creating output files from dx is the export module. This exports data from Data Explorer but only produces dx formatted or bin files (dx is the default, needs to have the text "dx" or "bin" in the "format" entry of the control panel). The bin format is only recommended on IBM POWER Visualization Systems. With "dx" format additional modifiers apply:
5.2.3 Animation/Video Creation
The primary tool used for the creation of Animation sequences is the sequencer - this can be found under the category "Special". Given a min, max and step value (passed from other modules or set explicitly), this basically creates a sequence of integers. Although like more advanced animation utilities, the sequence can be played forwards, backwards, set to a particular value, paused, or set to loop (either to the last then jump back to the first or bounce forwards then backwards). The default interface resembles a simple VCR control panel, see Figure 11
To set the values used by the sequencer, an additional control panel needs to be opened. By selecting the box containing "...", the panel shown in Figure 12 becomes visible.
On its own this module is not particularly useful for general purpose animations, but in combination with others can become a powerful animation aid. For example, when used with the transformation tool Compute it can produce a sequence of float values that could modify camera position, or with the interactor Selector could cycle through time series data. Several networks exist in the standard example directory, /usr/lpp/dx/samples/programs, to illustrate this. Only one sequencer is allowed in a network, but more experienced users can build networks such that this produces side by side animations.
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Graphics Multimedia Virtual Environments Visualisation Contents