Just a tip about applet loading 3D models, not related to policies:
To load a wrl model your client will need also a VRMLLoader, as vrml97.jar
some workrounds:
* pack your classes with a vrml loader;
* use Java3D embedded support to OBJ, instead;

If someone has more ideias  please share with us ;-)

Alessandro

----- Original Message -----
From: "Silvio Simone" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 31, 2003 5:35 PM
Subject: Re: [JAVA3D] VrmlLoader and applet!


> For savtey issue you cannot load/save files from an applet
> You should have two "java.policy" files on your HD. Here You should give
> additional permission rights
>
> Example File location:
> c:\java\jre\lib\security\java.policy
> c:\programs\java\jre1.4.1\lib\security\java.policy
>
> adding this line will work, but is very insecure:
> permission java.util.PropertyPermission "<ALL_FILES>", "read";
>
> for a complet documentation: search the web.
>
>
> ----- Original Message -----
> From: "Cassia Trojahn dos Santos" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, July 31, 2003 11:07 AM
> Subject: [JAVA3D] VrmlLoader and applet!
>
>
> > Hello,
> >
> > I'm trying load a vrml file in an applet, with VrmlLoader. But, I got
the
> following
> > exception:
> > exception: java.security.AccessControlException: access denied
> > (java.lang.RuntimePermission createClassLoader)
> > Do you had this problem before? How to handle it?
> > Following my fragment code:
> >          protected URL getURL(String filename)
> >           {
> >                 URL codeBase = getCodeBase();
> >                 URL url = null;
> >                 try
> >                 {     url = new URL(codeBase, filename);    }
> >                 catch (java.net.MalformedURLException e)
> >                 {     System.err.println("Erro");
> >                       return null;
> >                 }
> >                 return url;
> >             }
> >                 ............
> >                 arquivoAmbiente = getURL("ambiente.wrl");
> >                  .............
> >                 VrmlLoader loader = new VrmlLoader();
> >                  bg.setCapability(Group.ALLOW_CHILDREN_EXTEND);
> >              addKbdNavig(universe,bg);
> >              try
> >              {   s =  loader.load(arquivo);   }
> >              catch (FileNotFoundException e) { }
> >              catch (ParsingErrorException e) { }
> >              catch (IncorrectFormatException e) { }
> >                 ...........
> > Please, help-me!
> > Thanks a lot.
> >
> >
>
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