Here's a very interesting message that Frank Krause posted to
visad-list@xxxxxxxxxxxxx that somehow did not get forwarded to
visad@xxxxxxxxxxxxxxxx.
> From: IN%"fkrause@xxxxxxxxx"
> To: dsoleno <dsoleno@xxxxxxxxxxxxx>
> Subject: Re: application versus applet
> CC: visad-list@xxxxxxxxxxxxx
> Lines: 215
> Time: 1-JUL-1998 09:39:32.51
> Folder: NEWMAIL
> Replied: No
>
> First off all: Yes, it is possible to display a VisAD graph as an
> applet! But sometimes netscape reacts unstable.
>
> I followed the tips of David S. Soleno and here is a possible result.
>
> Thanks again,
>
>
> Frank Krause
>
>
> //////////////////////////////////////////////
> //////////////////////////////////////////////
> //////////////////////////////////////////////
> //////////////////////////////////////////////
>
> The java file:
>
>
> // import needed classes
>
> import visad.*;
> import visad.java3d.DisplayImplJ3D;
> import java.rmi.RemoteException;
> import java.math.*;
> import java.awt.*;
> import java.awt.event.*;
> import java.awt.swing.*;
>
>
> public class ScatterApplet extends java.applet.Applet
> {
> DisplayImpl displayApplet;
>
> public void init ()
> {
> this.setLayout ( new BorderLayout() );
>
> try
> {
> // construct scatter plot Displays
>
> displayApplet = new DisplayImplJ3D( "image display for applet" );
>
>
> ...
>
> .................. filling the display with data here ............
>
> ...
>
>
>
> // create JPanel in Applet
>
> JPanel panel = new JPanel();
> panel.setLayout( new BoxLayout( panel, BoxLayout.Y_AXIS ) );
> panel.setAlignmentY( JPanel.TOP_ALIGNMENT );
> panel.setAlignmentX( JPanel.LEFT_ALIGNMENT );
>
> // add display to JPanel
>
> panel.add( displayApplet.getComponent() );
>
> this.add( "Center", panel );
>
> this.setSize( 400, 300 );
> this.setVisible( true );
>
> } // try
> catch ( Exception e )
> {
> showStatus( new String( e.getMessage() ) );
> }
> }
> }
>
> //////////////////////////////////////////////
> //////////////////////////////////////////////
> //////////////////////////////////////////////
> //////////////////////////////////////////////
>
> The html file: it was converted by the HTML converter. It only works
> for netscape. Internet Explorer needs other commands.
>
>
> <HTML>
> <title>
> Graph
> </title>
> <BODY>
> <!--"CONVERTED_APPLET"-->
> <!-- CONVERTER VERSION 1.0 -->
> <EMBED type="application/x-java-applet" java_CODE
> "ScatterApplet.class" java_CODEBASE = . java_ARCHIVE = "visad.jar" WIDTH
> = 400 HEIGHT = 300
>
> pluginspage="http://java.sun.com/products/plugin/1.1/plugin-install.html";><NOEMBED>
>
> </NOEMBED></EMBED>
>
> <!--
> <APPLET CODE = "ScatterApplet.class" CODEBASE = . ARCHIVE = "visad.jar"
> WIDTH = 400 HEIGHT = 300 >
>
>
> </APPLET>
> -->
> <!--"END_CONVERTED_APPLET"-->
>
> </BODY>
> </HTML>
>
>
>
>
> dsoleno wrote:
>
> > You can run JDK 1.2 beta 3 applets in browsers if you configure your
> > browser to use the corresponding JRE 1.2 beta 3 downloadable from
> > Sun's Developer Connection (you have to register first) instead of the
> > browser's default one. Try looking at Sun's White Paper for general
> > information on the compile and runtime environments as well as a whole
> > host of other topics.
> >
> > A word of warning before you begin. The use of RMI in applets is
> > complicated. By default having an applet contact a host other than the
> > one that served the applet class file raises an Exception from the
> > AppletSecurityManager.
> > Netscape Security Issues is a good source of information for
> > Communicator woes and workarounds.
> > Internet Explorer presents additional challanges. First you would
> > need to download the RMI package that Microsoft refuses to ship with
> > IE. If you do a search of their site using "RMI" or "Java RMI" you
> > can find several places where they explain why they don't include RMI
> > by default and that they do make it available for download from their
> > site for anyone who is interested in using it. What you won't find is
> > where on their site it is available unless you were insightful enough
> > to know that the magic search phrase is "RMI.zip". In any case the
> > link above will take you to the ftp site. After you have done this
> > you will still need to overcome their SecurityManager issues just as
> > in Netscape. The MS Java page is a good place to start looking for
> > more information.
> >
> > In the end you may find it easier to install Sun's Java plug-in and
> > use its console application to configure your browser's JRE.
> >
> > About six months ago the company I worked for looked into writing
> > sophisticated RMI enabled applets. After six weeks of research we
> > postponed the project until such time that we deemed there to be
> > better support for RMI based applets by the manufacturers. It could
> > be that it's an easy task these days, expecially with the Java plug-in
> > now available.
> >
> > I know I haven't addressed all the concerns you have but hopefully the
> > sites above will lead you to the answers you need. Let the mailing
> > list know how it works out for you. Maybe it's time my company starts
> > looking at applets again as well.
> >
> >
> >
> > --
> > David S. Soleno
> > Software Developer
> > SciberNet, Inc.
> > Tel: (619) 824-0840>
> > Fax: (619) 824-0846
> > e-mail: dsoleno@xxxxxxxxxxxxx
> >
>
>
> --
>
> ------------------------------------------------------------------
> | |
> | |
> | Frank Krause Tel: ++49-40-56081 254 |
> | Fax: ++49-40-56081 222 |
> | EVOTEC BioSystems GmbH e-mail: fkrause@xxxxxxxxx |
> | Schnackenburgallee 114 |
> | D-22525 Hamburg http://www.evotec.de |
> | Germany |
> | |
> | |
> ------------------------------------------------------------------
Bill Hibbard
whibbard@xxxxxxxxxxxxx
