Oops,
> Also, to truly override finalize of the Java native classes,
> finalize must be declared protected, not private as I formerly stated or
> public as in Karsten's code.
thanks for the correction. Lazyness is always awkward.
> protected void finalize() throws Throwable {
> // your cod
Hi
I think its because Primitive keeps track of the individual Shape3Ds that
make it up. That way when a transform is applied, Primitive applys it to its
child Shape3Ds. When you detach a part of the primitive it objects and
refuses to work until the removed parts are reattached.
For what you wan
Looks good! I would only add that we did address the issue of cards that
share the z-buffer between the left and right eyes. We added a property
j3d.sharedstereozbuffer. Setting this to true will force Java 3D
to clear the Z-buffer between renderings of the left and right eyes.
By default this p
Kenneth SEE wrote:
> Do you know how I can convert a text file, which whole a set of points with
> x,y,z coordinates, to a VRML file?
This will have to be custom code as I don't know the format of the file.
These sorts of tasks are much simpler to do using your own knowledge so
that you get the
Here is an implementation of Raster labels (attached). It is basically Text2D
modified to used a Raster instead of a texture mapped polygon.
There are currently no plans to add raster text to the Java 3D utilities, but a
raster text utility may be considered if there is interest. I'd like to he
Dan Petersen wrote:
>
> The FAQ needs to be updated.
That's my problem. The internal version of the FAQ has not yet made it
to the outside world. If you can read through all the XML, this is the
current page contents:
General Stereo Setup
You've probably called setStereoEnable() in you
Daniel,
The view is jumping to look at the center of rotation, which by default
is (0, 0, 0). Try changing your center of rotation.
andrea
"Römer, Daniel" wrote:
>
> Hi,
>
> I have a problem with the OrbitBehavior class.
>
> For that I created a simple scene with a colorcube.
> Now I added th
Hi,
I have a problem with the OrbitBehavior class.
For that I created a simple scene with a colorcube.
Now I added the OrbitBehavior and I translated the viewer position to
somewhere
else. But after clicking with the mouse the cube jumps back to center.
This only effects the translation in X a
The indexify() method uses a hash table, so the two Objects would
have to have the same hashCode() to get the same index. The
Classes being used are the Vecmath classes Point3f, Color3f, etc.
Looking at the hashCode() implementation for those classes, there
is no tolerance - the two Objects' x, y
Oops! Big mistake!
Of course if I had actually referred to my working code, I would have
recalled the super.finalize() call and the throwable declaration...
Any text or FAQ can explain finalize and it's use more clearly. Sorry
for my mistake!
However, I think the following would be better th
There are known problems with our installer and the 1.4 Beta VM. Is
that what you are using? If so, This is bug 4464766. You can keep
tabs on the status of the bug here:
http://developer.java.sun.com/developer/bugParade
If you're not using 1.4, check the size of the executable file to
make
There are known problems with our installer and the 1.4 Beta VM. Is
that what you are using? If so, This is bug 4464766. You can keep
tabs on the status of the bug here:
http://developer.java.sun.com/developer/bugParade
If you're not using 1.4, check the size of the executable file to
make
Oouch,
> private void finalize() {
> System.out.println("BranchGroup finalized");
> }
>
this is definitely not the way to do it. This is a AntiPattern in Java!!!
When overriding finalize make sure you use this construct
public void finalize() java.lang.Throwable {
// this is very
Well, I thank you for answering in such a great number.
I finaly chose what some of you suggested, wich is
using the JOptionPane. It works more than well enough
in addition to offering many options and saving a lot
of trouble. I recommend it!
Thanks a lot.
Frank B.
Find the best deals on the w
I have to admit it is confusing. It is not documented that I can find. I
spent about 5 hours on Sun's site trying to answer this same question
before. There is no real way to *really* close a window. Hide it and kill
the reference is about the only way that I have found. I did see some code
t
Ehlo Frank!
> Could someone help me getting rid of this stupid
> problem please?
How about trying this.hide(). But you should actually find these
sort of information in the JAVA2 API Documentation or in the JAVA2
Tutorial (GUI with Swing Chapter)
EOF,
J.D.
--
Realtime Raytracer in JAVA
(http:/
Dear All,
I am running my JApplet in Netscape using the JRE plugin. On
clicking a button I want to open up NetMeeting.
This is what I am doing.
--
Runtime r = Runtime.getRuntime();
try
{
> You need two TransformGroups like this:
>
>TG1 -- TG2 -- [Objects]
>
> Apply translations to TG1, and apply rotations to TG2. Doing so you will
>achieve what you're looking for, I think ;)
>
> Vïctor
Thanks!!! Works a treat and kind of makes sence. :)
As I guessed this slows thin
Hi all, I have a Java 3D application (as you probably supposed). I use
JNI to use a native viewer. The problems comes whenever I close the
native viewer. Though my application goes on, I lost keyboard focus. I
am not able to gain focus again, does anybody has a clue? My
initialization code looks
Have your thought about using a JOptionPane? I think it's better if you
only want a warning message to show. Something like this has all the
buttons and closing methods built in:
JOptionPane.showConfirmDialog(ParentFrame, warnMessage, "Warning",
JOptionPane.YES_NO_OPTION );
There are also show
You need two TransformGroups like this:
TG1 -- TG2 -- [Objects]
Apply translations to TG1, and apply rotations to TG2. Doing so you will
achieve what you're looking for, I think ;)
Vïctor
Jason Taylor ha escrito:
> Futher investigation
>
> It seems that by default all rot
Frank,
You might consider using the JOptionPane class. For example:
JOptionPane.showMessageDialog(parent, "Your message here");
Quick and easy. There are even options to specify which buttons and icons
are present.
Todd
-Original Message-
From: Frank Bellegarde [mailto:[EMAIL PROTECT
Futher investigation
It seems that by default all rotations are around 0,0,0 on the Y axis,
how do I apply a rotation to a TransformGroup that is not located at
0,0,0 so that the object it contains stays where it was and spins
around?
I tried this but ended up with objects moving to 0,0,0 an
Ok, I know this isn't Java3d but it is easier to get
an answer around here 'cause there's a lot more of
people. I've added a JDialog containing a warning that
popup when the user mess with something. I've since
then been trying to make a button inside it close the
damned thing but I can't seem to
When switching to fullscreen-mode (or maximizing the window)
Java3D always complains about not having enough hardware memory
and switches to software mode.
How much Hardware Memory does Java3D need ?
Turning of double buffering didn't work, I just got a blank window ;-(
Peter
=
Lorena,
A
large number of sample programs should have been included when you installed
Java3D. Look under JDK1.3/demo/java3d/.
-Todd
-Original Message-From: Lorena
[mailto:[EMAIL PROTECTED]]Sent: Sunday, July 15, 2001 10:15
PMTo: [EMAIL PROTECTED]Subject: [JAVA3D]
newbie
The FAQ needs to be updated.
If your graphics card supports stereo through either the standard
OpenGL or D3D API then you can get stereo through Java 3D.
Several people are running PC cards in stereo mode.
Dan Petersen
Java 3D Team
Sun Microsystems
> Delivered-To: [EMAIL PROTECTED]
> MIME-Versi
>Can you use openGL and accomplish the same level of control you enjoy
with
>Java3D?
I've not read anything on openGL programming but I would suspect that
there is a lot of specific rendering/geometry tasks that you can't do in
Java3D but you can in openGL. But as openGL is a graphic language you
Hi Gerard
> << As with any lower level approach to programming it is harder to get
> things started but when you get it going there is almost no limit to
> what you can do with it as you have complete control! >>
>
> Can you use openGL and accomplish the same level of control you enjoy with
> Jav
Hi
While looking at the source code of the Util class Box
I found an interesting class called GeomBuffer. But I
couldn't find any info about it in the JAVADOCs. But
to me it looks like a public class otherwise Box couldn't
use it.
EOF,
J.D.
--
Jmark2k+1 (http://www.antiflash.net/jmark)
Test th
Greg:
Note my wording: "You can force the garbage collection _somewhat_ by
calling System.gc()."
Garbage collection in Java seems to be slow at best, but if objects have
no references remaining and you set them to null, you are likely to get
garbage collection and _if_ garbage collection occurs
Greg Munt wrote:
> System.gc is not guaranteed to do ANYTHING.
Yes it is. It is guaranteed that the VM will make its best efforts to
reduce the amount of currently allocated memory that has no references
to it. If it has no free references to collect, then it will not appear
to do anything, but
Hi,
I have a scene with 300 objects and thought I'd try adding some
Interpolators to spice it up. I managed a color one okay as I can
generate a single material object and associate it with multiple shapes,
just had to slow the cycle so that mouse responce was okay. But I wanted
to try a rotation
This is just not true. Garbage collection is never guaranteed to happen.
Ever. (This means that finalizers are never guaranteed to run, ever.)
System.gc is not guaranteed to do ANYTHING. For this reason, I fail to see
the point of its existence, actually.
-Original Message-
From: Christop
You can try a trial version of the program "OptimizeIt", which will
allow you to track the number of instances of each type of object while
your program is running, and the amount of memory they take up. This
program helped me out a lot last week. Just search for OptimizeIt on
any shareware site
I can think of two reasons why there would be a difference
between an applet and an application in your case.
First, applets do not have access to files on the hard
disk unless you specifically specify that permission. If you run it in
appletviewer, it might give you file access without spe
Estaré fuera del 16/7 al 29/7.
I'll be out of office from 16/7 to 29/7
-
Daniel Moscoso Rivas
emagine Iberia Consulting and Technology, S.A.
Hi,
I've got a lot of objects and each of them has a label created
with a OrientedShape3D. The text of the label could be created
either by a Text3D object or by rectangle with a texture where
the texture is rendered 'online' via a BufferedImage. I would
simply draw the label text into the image.
hi all!
Does anyone know if there is a possibility to do a transformation at a
PickRay Object?
The problem is that there is no difference between picking at the root
branchgroup or a later attached transformgroup!
As shown in the following source code I do picking from a starting point
to one d
>I have seen your message. I am also going to work on a project of
using
>VRML, Java3D and Java EAI. Would you give me some journal or paper
about
>using the JAVA EAI and why you feel it is not good? I would like to
get some
>more details before I move to Java 3D.
>
>Many thanks,
>Kenneth
I'm no
Hi EveryOne:
By browsing the stereo viewing page on the Java3D FAQ, I found the
following information:
1. General Stereo Setup
First, be aware that in the current release of Java 3D, stereo is only
supported on Sun workstations. PCs with stereo hardware will be able to use
stereo in the ne
On some systems I had to run it twice to get the installAnywhere to work
(e.g. on my athlon with win98). First time it would just hang with a blank
dialog box and I had to kill it off.
Second time no problems.
Chris
Wilson Wen wrote:
> I jsut downloaded (twice) the java 3d for Windows
> (.exe
I jsut downloaded (twice) the java 3d for Windows
(.exe files) from sun web site but have trouble to
install on my Toshiba Tecra notebook (P3 733 with
256MB memory running Windows 2000 SP2). When I run the
.exe, only an InstallAnyWhere dialogue box came out
but nothing else. Then the installation
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