Globale linker
Book 1
- Chapter 1
- Chapter 2
- Chapter 3
- Chapter 4
- Chapter 5
- Chapter 6
- Chapter 7
- Chapter 8
- Chapter 9
- Chapter 10
- Chapter 11
- Chapter 12
- Chapter 13
- Chapter 14
- Chapter 15
- Chapter 16/17
- Chapter 18/19
- Chapter 20
- Chapter 21
- Chapter 22/23
Book 2
Ch.6 Multimedia
With multimedia, today's designers are limited by two major factors that inhibit rapid technology adoption: bandwidth and browser support.
Animation is an important component that distinguishes the web from other media. The most common types of basic animation are:
- Animated GIFS
A compilation of still images that is set into motion at a designated sequence, speed and repetition. - Rollovers
Are actions that are triggered by passing the mouse over designated areas of the web page. - Flash
Offers rich content while conserving bandwidth. Vector based.
NB! Avoid scrolling text whether it is used in Java applets, marquees or the browser status bar. Critical information should not scroll because the user will probably pay little attention to it.
Audio comes in two flavors:
- Downloaded
The entire audio file is downloaded and then played on the clients machine.
NB! Do not embed sound files in an HTML file. The only acceptable form of embedded audio is in Flash files. - Streamed
As soon as the connection is made to the streaming audio server, a small buffer is created, and the audio file begins to play. Real Networks RealPlayer can deliver streamed media.
Audio file formats:
- .aiff (Mac)
- .au (Unix)
- .mid (MIDI, creates music algorithms)
- .mov (Quick Time, support both audio and video)
- .wav (Windows)
- .swf (Showkwave/Flash)
- .mp3
User interaction is best defined in:
- interest
- activity
- resolution
Java is not suited for animation as the entire file has to be downloaded before it can run. Java applets have no streaming capabilities.
Flash is what is best for use with animation in webpages as it is relatively small in size and have streaming capabilities.
