3D Plot fails

[bjs]

Hi, When I run this in a notebook:

u, v = var('u,v')
fx = u*v
fy = u
fz = v^2
P = parametric_plot3d([fx, fy, fz], (u, -1, 1), (v, -1, 1),
frame=False, color="yellow")
show(P)

I get the error message:

You do not have Java applets enabled in your web browser, or your
browser is blocking this applet.
Check the warning message from your browser and/or enable Java applets
in
your web browser preferences, or install the Java Runtime Environment
from www.java.com

I'm using Firefox 3.0.1 and have Java and Javascript enabled in
preferences. I have Sun Java 6 Runtime installed and I am running sage
3.0.5 under Ubuntu 8.04.

Can anyone suggest what I am missing?

[William Stein]

I have no clue.

Just one comment -- if you do

show(P, viewer='tachyon')

at least you'll see a 3d plot, though you can't dynamically rotate it...

[John Cremona]

I have had the same error message on a machine running ubuntu 8.04 and
firefox 3.0.1 and all java stuff turned on. There is no "warning
message from your browser" that I can see.

John

2008/8/7 William Stein <wst...@gmail.com>:

[Robert Bradshaw]

I wouldn't be surprised if it's a Firefox 3 security issue. Did you
get any messages about certificates? Did you ever click "accept
once?" Of course it could be something totally different.

- Robert

[bjs]

I've had no warnings or errors or any other notifications from firefox
and I have not accepted any certificates lately. Is there a simple way
of checking that Java is working in firefox? I'm thinking of a
possible install script error re paths or something of that nature.

On Aug 7, 6:16 pm, Robert Bradshaw <rober...@math.washington.edu>
wrote:

[Robert Bradshaw]

On Aug 7, 2008, at 9:57 PM, bjs wrote:

> I've had no warnings or errors or any other notifications from firefox
> and I have not accepted any certificates lately. Is there a simple way
> of checking that Java is working in firefox? I'm thinking of a
> possible install script error re paths or something of that nature.

Google for "example applet" I'm sure that will turn up an example you
could try.

[bjs]

Thanks, I've found a java test at http://www.java.com/en/download/help/testvm.xml
which reports that my jre is not running so this is a java/firefox/
Ubuntu problem not a sage problem. I have posted a question on the
Ubuntu support site and I will post again if and when I find a
solution since I am not the only one with the problem. But thanks
again

On Aug 8, 6:12 am, Robert Bradshaw <rober...@math.washington.edu>

[David Joyner]

I have a similar setup (hardy heron, etc) and use openjdk with no
problems

wdj@hera:~$ java -version
java version "1.6.0"
OpenJDK Runtime Environment (build 1.6.0-b09)
OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)

You probably have sun-java5-jdk, etc. If you want to try openjdk, type
sudo apt-cache search openjdk
and it should tell you which deb files to install using
sudo apt-get install ...

[John Cremona]

2008/8/8 David Joyner <wdjo...@gmail.com>:

>
> I have a similar setup (hardy heron, etc) and use openjdk with no
> problems
>
> wdj@hera:~$ java -version
> java version "1.6.0"
> OpenJDK Runtime Environment (build 1.6.0-b09)
> OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)

I just installed that (earlier I installed the sun one but it didn't
work in firefox). But -- after restarting firefox -- it still doesn't
work.

David, is your firefox this one:

Gecko/2008072820 Firefox/3.0.1 ?

John

[David Joyner]

On Fri, Aug 8, 2008 at 7:46 AM, John Cremona <john.c...@gmail.com> wrote:
>
> 2008/8/8 David Joyner <wdjo...@gmail.com>:
>>
>> I have a similar setup (hardy heron, etc) and use openjdk with no
>> problems
>>
>> wdj@hera:~$ java -version
>> java version "1.6.0"
>> OpenJDK Runtime Environment (build 1.6.0-b09)
>> OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)
>
> I just installed that (earlier I installed the sun one but it didn't
> work in firefox). But -- after restarting firefox -- it still doesn't
> work.
>
> David, is your firefox this one:
>
> Gecko/2008072820 Firefox/3.0.1 ?

Yes:

Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.1) Gecko/2008072820
Firefox/3.0.1

I should have added though, I almost always only use the command line.

I just now tried this with the notebook and just got a grey box with
no plot below the cell with the
plot 3d commands.

[John Cremona]

2008/8/8 David Joyner <wdjo...@gmail.com>:

>
> On Fri, Aug 8, 2008 at 7:46 AM, John Cremona <john.c...@gmail.com> wrote:
>>
>> 2008/8/8 David Joyner <wdjo...@gmail.com>:
>>>
>>> I have a similar setup (hardy heron, etc) and use openjdk with no
>>> problems
>>>
>>> wdj@hera:~$ java -version
>>> java version "1.6.0"
>>> OpenJDK Runtime Environment (build 1.6.0-b09)
>>> OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)
>>
>> I just installed that (earlier I installed the sun one but it didn't
>> work in firefox). But -- after restarting firefox -- it still doesn't
>> work.
>>
>> David, is your firefox this one:
>>
>> Gecko/2008072820 Firefox/3.0.1 ?
>
> Yes:
>
> Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.1) Gecko/2008072820
> Firefox/3.0.1
>

Same as mine except US -> GB and no _64.

>
> I should have added though, I almost always only use the command line.
>
> I just now tried this with the notebook and just got a grey box with
> no plot below the cell with the
> plot 3d commands.

OK, so that's consistent. I can also display things like

show(sage.plot.plot3d.shapes.Torus(3,1), figsize=6, aspect_ratio=[1,1,1])

from the command line but not the notebook.

John