Microsoft KB Archive/223293

LM1: Estimating Animations’ Download Times.

PSS ID Number: Q223293 Article last modified on 05-20-1999

WINDOWS:1.0

WINDOWS

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The information in this article applies to:

 == Microsoft Liquid Motion for Windows 1.0 == 

= SUMMARY =

This article explains how to estimate the time that is required to download Liquid Motion animations.

= MORE INFORMATION =

When you publish an animation from Liquid Motion, two versions of the animation are created. One is used by Microsoft Internet Explorer 4.0 and later, which takes advantage of Internet Explorer’s DirectAnimation engine. The other version of the animation is a java-applet version which is played by other Java compatable browsers. Some of the files related to the DirectAnimation and java versions of animations are different, thus download times may vary for each version of an animation.

The approximate download time for each version of an animation can be calculated. To do this, divide the total size of the animation files used by the specific browser by the bit rate of a modem. Below is a list of files used by each version of an animation.

NOTE: For Java compatable browsers, the contents of the folder is downloaded only once as the “Liquid Motion Accelerator.” Otherwise, these files will be downloaded for each animation that is viewed.

Download Time Formula (expressed in seconds):

Total Size of Animation (bytes) ————————————– = Download Time (seconds) Modem Rate (bytes/sec)

Common Modem Rates (expressed in bytes):

28,800 bits/sec = 3600 bytes/sec 33,600 bits/sec = 4200 bytes/sec 56,000 bits/sec = 7000 bytes/sec

Example Calculation:

19,000 bytes ——————— = 5.27 sec 3600 bytes/sec

Additional query words: 1.0

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========================================================= Keywords : kbdta KbDirectX kbInternet Version : WINDOWS:1.0 Platform : WINDOWS ============================================================================= Copyright Microsoft Corporation 1999.