VRML - Vrml: java applet

Author

Vrml: java applet

Bill Angel

2003-12-04, 12:58 pm

"Andrea" <andreaxxx78@interfree.it> wrote in message news:bmea3h$m3h11$1@ID-208100.news.uni-berlin.de...

quote:

> Hi.
> First of all: I'm a newbie in vrml and in java both!
>
> I'm trying to interface an applet (Java) with a vrml browser (the final
> scope is to start and stop an animation via the applet).
>
> I wrote this applet (a very simple applet, I tryed this for understanding
> how to "referentiate" a vrml browser):

quote:

> The problem is that opening the page (with IE 6 and Cortona client) I get
> this error:
> java.lang.NoClassDefFoundError: com/ms/activeX/ActiveXControl
> at java.lang.ClassLoader.defineClass0(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
> at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:148)
> at
> sun.plugin.security.PluginClassLoader.findClass(PluginClassLoader.java:168)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:114)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
> at vrml.eai.BrowserFactory.getBrowser(BrowserFactory.java)
> at vrml.external.Browser.getBrowser(Browser.java)
> at testAW.start(testAW.java:27)
> at sun.applet.AppletPanel.run(AppletPanel.java:371)
> at java.lang.Thread.run(Thread.java:536)
>
> It can't find the "com/ms/activeX/ActiveXControl" class... (Is this true?)
> This class seems to be a Microsoft class...
> Why this applet needs a Microsoft class?
>
> Anyone can help me understanding how to solve this problem?
>
> Thanks a lot.
> Bye.
>
>

Your java traceback listing indicates that you are
attempting to utilize Sun's Java VM plugin to run the VRML Java EAI
Applet. The VRML EAI Applet code won't work with the Sun plugin.

I assume that you are utilizing the Windows XP operating system?
If so, you will need to install the Microsoft Java VM to utilize the VRML EAI.

Several places where I believe that you can still get this VM are:

www.bigblackglasses.com/staff/downloads/msjavx86.exe

ftp://ftp.intergraph.com/ingr/pub/o...al/msjavx86.exe

Just download the file and run it to install the Microsoft Java VM.
You will then need to reboot your machine.

--- Bill Angel
Silver Spring, Maryland

Andrea

2003-12-04, 12:58 pm

> Your java traceback listing indicates that you are

quote:

> attempting to utilize Sun's Java VM plugin to run the VRML Java EAI

Applet.
Yep, that's right...

quote:

> The VRML EAI Applet code won't work with the Sun plugin.

Ops!

quote:

>
> I assume that you are utilizing the Windows XP operating system?

No, I'm using Win2000

quote:

> If so, you will need to install the Microsoft Java VM to utilize the VRML

EAI.
I've yet installed it.

I tryed using Ms Java VM but It doesn't seem work (the error is the same).
And with Mozilla? I need to do it with IE and Mozilla to... Is there any
solution?

Thanks.

Bill Angel

2003-12-04, 12:58 pm

"Andrea" <andreaxxx78@interfree.it> wrote in message news:bn0o4b$dq1$1@newsreader.mailgate.org...

quote:

> I tryed using Ms Java VM but It doesn't seem work (the error is the same).
> And with Mozilla? I need to do it with IE and Mozilla to... Is there any
> solution?
>
> Thanks.

Hi Andrea:

If you have installed the MS Java VM, and you are getting the same error,
then check the following:

On the Tools menu in Internet Explorer, click Internet Options.

Click the Advanced tab.

Make sure that all the Microsoft VM options are enabled (check boxes are checked)
Make sure that the Java (Sun) option is disabled (checkbox is NOT checked)

Restart Internet Explorer

To confirm that your setup is running correctly, you could try running the following
VRML Java EAI example:

http://www2.dc.net/wtangel/VrmlExam...ionControl.html

Hope this helps,

--- Bill Angel

Andrea

2003-12-04, 12:58 pm

Well... The example you indicate me run... (I can't understand: why
yesterday it doesn't run??? maybe I forgot to reboot my pc!)

But I saw EAI is only IE compatible... It doesn't run with Mozilla or
Netscape!

Is there any equivalent tecnology running with both IE and Mozilla?

Thanks.

Andrea

2003-12-04, 12:58 pm

PS: I need to implement the functionality I explained you in my last message
titled "VRML controlled via JavaScript function in HTML" and I need to do it
in IE and Mozilla to!

Thanks.

miraShamiera

2004-09-19, 12:01 am

hi...

i have same problem with andre... Can i get the example source to test either my connection EAI can work?... i try to download the example lin: [http://www2.dc.net/wtangel/VrmlExam...ionControl.html]
but failed(the page eeror link)... can i get the latest link ....Please