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Mechanical APDL Basic Analysis Guide - Ansys

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• ANMODE (Utility Menu> PlotCtrls> Animate> Mode Shape) produces an animated sequence of a<br />

deformed mode shape in POST1. Before using ANMODE, you must execute a command that contains<br />

deformation.<br />

• ANMRES (Utility Menu>PlotCtrls>Animate>Animate Over Results) produces an animation of results<br />

over multiple results files in an explicit dynamic structural analysis or fluid flow analysis with remeshing<br />

in POST1.<br />

• ANTIME (Utility Menu> PlotCtrls> Animate> Over Time) produces an animated sequence of a contoured<br />

deformed shape varying over time in POST1. Before using this macro, you must execute a display<br />

command that contains deformation, contouring, or both and you must have a solution containing<br />

time variance.<br />

ANDYNA, while still supported by ANSYS, has been replaced by the ANDATA macro.<br />

17.4. Capturing Animated Display Sequences Off-Line<br />

In this procedure, you produce graphics images one at a time, photographing or video-recording them<br />

frame by frame. Among this technique's advantages is the fact that when you capture an animated sequence<br />

one frame at a time, there is generally no limit on its complexity, and performance does not degrade with<br />

increasing numbers of entities.<br />

In general, producing high-quality graphics video recordings is a job for multimedia experts with specialized<br />

equipment. Capturing a sequence of individual frames on video requires three separate pieces of equipment:<br />

• A device that produces a television-style video signal (accomplished through the use of an add-in board,<br />

a separate encoder, or a scan converter).<br />

• A frame controller to control the video recorder as it captures the individual frames. The frame controller<br />

receives both the television video signal and a computer input (such as serial RS-232), and sends instructions<br />

to capture the frames.<br />

• A frame-controllable video recorder (which differs considerably from a home VCR).<br />

In addition to specialized hardware requirements, some custom software is also needed for video recording.<br />

The /SYS command in ANSYS provides the programming interface between the ANSYS program and these<br />

special systems, allowing video system commands to be integrated into your ANSYS session.<br />

Another hardware solution for animation is capturing single frames onto film, using a device known as a<br />

film recorder. As with video frame-capture equipment, images are saved onto film under software control.<br />

The best of these devices can be expensive, and custom programming may be involved in using them.<br />

A relatively low-cost approach to film recording involves the use of a stationary camera shooting individual<br />

frames from a graphics display. These frames are then processed as the individual frames of a film. The resources<br />

of photographic technicians are often required to turn still images into acceptable-quality moving<br />

film.<br />

17.5. The Stand Alone ANIMATE Program<br />

When you create animations in UNIX, they are stored as ANIM files. This format is not supported outside of<br />

ANSYS. You can use the ANIMATE Program (ANIMATE.exe) to conveniently play back your ANIM files on<br />

the PC. The ANIMATE program runs on the PC, even if you do not have ANSYS installed. You can also use<br />

the ANIMATE program to convert your ANIM files to an AVI format. The AVI animation file format is supported<br />

by a number of Windows applications, including Windows Media Player. ANIMATE is especially useful for<br />

creating portable files that can be exchanged via the internet, since the AVI file format is significantly smaller<br />

than the ANIM format.<br />

Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information<br />

of ANSYS, Inc. and its subsidiaries and affiliates.<br />

17.5.The Stand Alone ANIMATE Program<br />

269

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