Hi,
Can anyone tell me if its possible to implement drag and drop on a Canvas3D object? I
would like to drag and drop an object defined by me that stores image pixel
information onto a canvas to be rendered as a 3D image.
Thanks
Vijay
_
Hi,
I am note quite sure I understand you question but I will attempt an answer anyway.
1) You can distinguish between too spherses based on there position as you said. If
you want to add your own information about
how each sphere is dfferent you can user the user data member of the Node class.
Dear Jason, dear list,
From: "Jason Cheatham"
> I am writing in regards to your UML response that you
> submitted to the Java3d email list in which you gave
> the link:
> http://www.oisoft.com/produkte/together/index.htm
> for the Together 'Community Edition'.
>
> I've explored the site and tried
Alan,
This is a caching bug, j3d caches some scenegraph info. in
BranchGroup for scene traversing pusposes such as picking. The caching
mechanism gets a bit complicated when it is under SharedGroup; changes
from a 1-D to a 2-D problem. This bug caches, incorrectly, the amount of
info. in
Hi,
I have a problem. I have 2 virtual universes on 2 separate Canvas3D objects side by
side in 1 application window. I can access the canvases and scenegraph objects by
calling brainCanvas[0], objRoot[0] etc.
I want the two objects on the 2 seperate virtual universes to rotate at the same tim
> Date: Mon, 15 Jul 2002 15:58:48 -0400
> From: David Yazel <[EMAIL PROTECTED]>
>
> The only problem I see is that if I clip "inward" then to create a hole I
> would need two inward facing planes. wouldn't that cause both to to clip in
> opposite directions to infinity, thus clipping ever
Chien Yang wrote:
>Joerg,
>
>FYI. The bug is in BranchGroup under SharedGroup. Due to this bug,
>the use of BranchGroup under a SharedGroup should only be so if it is
>necessary, such as the need to detach/attach dynamically.
>In your test program, you've created a n-level deep su
I remember seeing some utility code from Sun for clipping triangles. I just
can't seme to find it. Does anyone know where that is?
Dave Yazel
- Original Message -
From: "Mauricio Vives" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, July 15, 2002 4:51 PM
Subject: Re: [JAVA3D]
Joerg,
FYI. The bug is in BranchGroup under SharedGroup. Due to this bug,
the use of BranchGroup under a SharedGroup should only be so if it is
necessary, such as the need to detach/attach dynamically.
In your test program, you've created a n-level deep sub-graph,
with a BranchGro
Title: RE: [JAVA3D] Model clipping
Dave,
It would indeed be tricky to use clipping planes to create holes, and it may not actually be possible. As you already noticed, you end up clipping everything if you use standard clipping planes to try to create a hole. Java 3D uses clipping plane su
Title: RE: [JAVA3D] Performance Experience
Thanks! I'll try it today.
- Original Message -
From:
Smith,
Daniel
To: [EMAIL PROTECTED]
Sent: Monday, July 15, 2002 8:44 AM
Subject: Re: [JAVA3D] Performance
Experience
Add this as a custom behavior:
import ja
>On Mon, 15 Jul 2002 12:38:08 -0700, Mark Hood <[EMAIL PROTECTED]> wrote:
>You should be able to define the direction of the clip plane normal outward to
>create holes if you like. The model clip planes are affected by a bounds or
>bounding leaf as well as hierarchical scope. The clipping is pe
Thanks Mark!
The only problem I see is that if I clip "inward" then to create a hole I
would need two inward facing planes. wouldn't that cause both to to clip in
opposite directions to infinity, thus clipping everything?
Dave Yazel
- Original Message -
From: "Mark Hood" <[EMAIL PROTEC
> Date: Mon, 15 Jul 2002 12:38:08 -0700
> From: Mark Hood <[EMAIL PROTECTED]>
>
> In this representation the vector (A, B, C) is the normal to the plane. If
> you extend this normal from the origin and go a distance D from the origin
> backwards along the normal direction you'll get a poi
> Date: Mon, 15 Jul 2002 14:48:53 -0400
> From: David Yazel <[EMAIL PROTECTED]>
>
> I never got a response on this, so I thought I would resend it. Also, can
> anyone explain the Vector4d that defines the clipping planes, or does anyone
> have examples of how this works?
The Vector4d x,
I never got a response on this, so I thought I would resend it. Also, can
anyone explain the Vector4d that defines the clipping planes, or does anyone
have examples of how this works?
Thanks,
David Yazel
- Original Message -
From: "David Yazel" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED
I have not played much with the graphics 2d system in Java3d. When I tried
it 2 years ago it wasn't working very well.
We do all our overlays with 3d geometry and have been pretty happy with it.
Here is an example:
http://www.magicosm.net/screenshots/cosm740.jpg
I think the j3d.org has an over
Hello,
Well I'd like to know if there is an easy way (and fast) to know if a given point is
behind a given object from camera position
I'd like to draw dashed lines for invisible borders when an object is front of an other
Thanks
===
It'll depend what you want it to do?
VR covers a lot of ground from simple PC with shutter glasses (~£2,000)
to SGI monster with head tracking headset and data glove (~£20,000) to
even a virtual cave with a stack of rendering boxes and projectors
(~£200,000).
Reason you don't see prices much is
Hi,
Well, it seems that lots of people are interested to overlay the canvas 3D, so I'd
like to know which system is actually working best (and if possible with j3d 1.2.1
)
At this time I use a graphics 2D to draw rextangles , lines , text , ... and I'd like
to overlay the canvas3D with th
Hi
That's funny I don't have a change in speed but in visuals, I suddenly
get interesting artifacts while upgrading from 1.3b2 to 1.3. Seems like
Z-fighting but I'm not sure.
But anyway hail to SUN for releasing J3D1.3final before August :)
My sincere thanks,
J.D.
--
Explore SRT with the hel
The Java 3D Frequently Asked Questions list for Monday July 15 2002
This is a posting of topics covered in the Java 3D FAQ. The answers
to these questions are kept at:
http://www.j3d.org/faq
Please consult this list and the web site before asking questions on the
mailing list.
If ther
Hi Karl !
In 1998 FakeSpace (www.fakespace.com) offers a VR Workbech (IWB 50) for 60K
$ . In my opinion a VR Workbench costs currently 40K $ (without the
rendering system). Barcu (http://www.barco.com/projection_systems/) and TAN
(www.tan.de) also offers Workbenches.
SGI's Onyx and Onyx2 are use
Hello All,
Can somebody sends a small demo example of how to do serialization in Java3d api (even
small code snippet will work). Also, how to get details about
com.sun.utils.scenegraph.io package.
Thanks
Ashish
===
To un
Title: RE: [JAVA3D] Performance Experience
Add this as a custom behavior:
import java.util.*;
import javax.media.j3d.*;
/** A behavior to calculate the framerate (number of Frames Per Second)
*
* @author Corysia Taware [EMAIL PROTECTED]
* @version $Revision$
*/
public final class Fram
Hi,
I'm trying to get a rough idea of the sort of price
you'd expect to pay for VR equipment, high-end of the
market(ish).
I've looked all over, but none of the websites like to
say. I was wondering what kinda price for a VR
workbench, and the hardware that would go with it, an
estimate, abou
Hi There,
Is there a way to get FPS measurements with j3D 1.2.1 ?
Thanks,
Zoran
- Original Message -
From: "Chien Yang" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, June 21, 2002 10:47 AM
Subject: Re: [JAVA3D] Performance Experience
In Java 3D 1.3 beta, we did ship with
The least you can do is to give your votes for bug 4458337.
Pasi
-Original Message-
From: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]On Behalf Of ian mayo
Sent: 9. heinäkuuta 2002 9:34
To: [EMAIL PROTECTED]
Subject: [JAVA3D] Java3d failing under JDK1.4, Windows NT
Hi all
Just had to said thanks for the eye seperation info,
it worked a treat!
I'll find another problem soon though, but thanks for
now!
cheers
KP
--- Jack Gundrum <[EMAIL PROTECTED]> wrote: > You need to
set the eye separation smaller;
>
> PhysicalBody myBody =
> u.getViewer().getPhysicalBody();
>
Hi,
I am doing picking on IndexedGeometryArray geometries and I would like to
get the index of the vertex I picked. In the PickIntersection class, the
getClosestVertexIndex method return the index for the intersection primitive
(triangle), not for the GeometryArray.
I need this index to get the ve
Hello
A little question : how could you get informations about a wrl file
under Java3D.
For exemple, the position of the object, its size, etc, etc ?
Thanks for your answers.
David Bourgais
===
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