MATLAB SIMULINK 3D ANIMATION - S Guida Utente Scaricare il pdf (Pagina 264)

7 Viewing Virtual Worlds

7-44

quality numbers result in lower video quality and smaller file sizes. You need to

specify an identification string of a codec that your system supports.

• None — Prevents any compression for the animation file.

Disable the navigation panel. The navigation panel appears at the bottom of the

virtual scene view. You might want to turn off this panel for a cleaner view of the

virtual scene. Choose View > Navigation Panel > None.

You can re-enable the Navigation Panel (for example, choose View > Navigation

Panel > Halfbar) after you are finished recording the .avi file.

Click OK.

After you define an animation file, you can record animations. See “Start and Stop

Animation Recording” on page 7-40. If you want to record animations on a schedule,

see “Schedule Files for Recording” on page 7-44.

Schedule Files for Recording

This topic describes how to schedule the recording of an animation using the MATLAB

interface for a virtual world that is associated with a Simulink model. In this case, the

timing in an animation file derives from the simulation time. One second of the recorded

animation time corresponds to one second of Simulink time. To schedule the recording of

an animation file, you preset the simulation time interval during which the animation

recording occurs. This procedure uses the vrplanets example. It assumes that you have

already configured the recording parameters for an animation file.

In the MATLAB Command Window, type the model name. For example:

vrplanets

The Simulink model is displayed. Also, by default, the Simulink 3D Animation

viewer for that model is loaded and becomes active. If the viewer is not displayed,

double-click the VR Sink block in the Simulink model.

From the Recording menu, choose Capture and Recording Parameters.

The Capture and Recording Parameters dialog box is displayed. In the Recording

section, this dialog box contains the Record mode list. Note that the Record mode

list is enabled only if you also select either or both of the Record to VRML and

Record to AVI check boxes.

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MATLAB SIMULINK 3D ANIMATION - S Guida Utente Pagina 264