U.S. Dept of Commerce/NOAA/PMEL/EPIC 

 EPIC Data Selection 

Here is another example of combining new Java applets with existing, proven technology, i.e. HTML forms and CGI scripts.

The EPIC Data Selection applet provides an interface to on-line databases on this server. As a matter of fact, all this applet does is launching an existing CGI script by a simple HTTP/GET command. The script then searches our databases and starts the EPIC Web Browser.

The more interactive nature of applets (compared to HTML forms) allows for a more convenient selection of the required parameters by the user. Compare this applet to our forms-based selection pages which can be found here!

This applet consists of 10(+1) classes resulting in ~37K of bytecode, not including any classes from the epic.geophys and epic.awt_extensions of which it makes extensive use.

Java is a relatively new technology. The (correct!) implementation of Java on all possible platforms will require a long time still. Expect to experience quirks with this (and other) applet(s). For a list of known problems with this applet read this document.

epic Java Class Packages

• epic.geophys (Documentation coming soon)
  This package contains classes for objects such as Latitude, Longitude, Map Descriptors, etc.
• epic.awt_extensions (Documentation coming soon)
  Defines more specialized objects based on the Java AWT.

Databases and associated interfaces were designed and implemented by Willa Zhu, NOAA/PMEL/EPIC.

For a non-Java, HTML forms based interface to oceanographic profiles on this server go here.

About Java Efforts of the EPIC and TAO Groups

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