Hi,
I have written an applet that uses Java3d and loads in a vrml file. I have
noticed that when I leave the page containing the applet memory does not
appear to be freeing up automatically. It seems that each time I reload the
applet, it takes up more memory, runs slower, and will eventually m
Hi Martin,
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>Date: Tue, 25 Apr 2000 20:58:24 +0100
>From: Martin Baker <[EMAIL PROTECTED]>
>Subject: [JAVA3D] Collision Behaviors
>To: [EMAIL PROTE
I would like to use a triangleArray (or ideally a triangle strip array) to
store my scene geometry. This will change slightly frame by frame with the
number of triangles/ strips not remaining constant.
Do I have to copy the entire array each time the triangle count
changes, into a new arra
I'm having trouble displaying points on a WinNT machine with a Wildcat 3510
graphics card.
My application assigns a PointArray to a Shape3D object. If I set my
Appearance-PointAttributes to a point size of 8 and antiailising to true,
the points show up as single pixels. If I turn antiailising fal
Could anyone help me confirm my understanding of Collision Behaviors as
below, or could you tell me about any tutorials that cover these issues)?
* By default the bounds used in collision testing are internally computed
each frame (unless overridden by Shape3D.setCollisionBound() or
Node.setBound
If you use +psi as + Z rotation, +tht as +Y rotation and +phi as +X rotation
then,
tht = asin(m02),
psi = -atan(m01/m00)
phi = -atan(m12/m22)
If you need other rotations, they can be derived in any order.
> Hope this helps.
>
> --
> From: Dean Keeler[SMTP:[EMAIL PROTECTED]]
> Re
Look at
http://pub.cs.tu-berlin.de/doc/java/jdk/api/java.awt.GraphicsConfiguration.html
Jacob
Augustin Gjini wrote:
>
> I see in lots of Java 3D program this piece of code
>
> GraphicsConfiguration config =
> SimpleUniverse.getPreferredConfiguration();
> c3D = new Canvas3D(config
When using the recommended method of initializing a Canvas3D object(rec
from the list I believe):
1 canvas = new
Canvas3D(GraphicsEnvironment.getLocalGraphicsEnvironment().
getDefaultScreenDevice().getDefaultConfiguration());
I get a canvas without double b
I see in lots of Java 3D program this piece of code
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
c3D = new Canvas3D(config);
Can anybody be able to explain me this ??
Thanks...
Hi Dean,
if you concatenate multiple transforms the code won't work.
For a matrix there exists more than one solution for the angles around X, Y, and
Z axis. One solution could be found a tuple of euler anlges, see:
http://users.ece.gatech.edu/~slabaugh/personal/research/euler/euler.html
I hope
Hi
I am trying to get the perspective parameters from the
view matrix used to generate the scene on my canvas.
When I use Canvas.getVworldToImagePlate()
the last row of the matrix is
0 0 0 1
I've reading up on my projective geometry over the
last week, and for a perspective transformation,
Could you send me a few lines code? (hmm)
Arne Halvorsen wrote:
> Keep your initial Transform3D objects, reset button action is to set that
> Transform3D to the TransformGroup node in question using its setTransform
> method.
>
> ArtMotion wrote:
>
> > My users are somethimes "funny" and move th
Hi,
I am trying (have been trying for a while) how to calculate the angular
values around X, Y, and Z from a Matrix3d object. I am trying to echo
positional data of a vrml object to the user. I get the Transform3D object
from the TransformGroup vrml node and then get the matrix3d object and the
Art,
A better way (in terms of UI) would be to create your own Key or Mouse
behavior that didn't allow the user to move objects outside of the visible
view. Before updating the behavior's T3D you can check that the translations
fall within predefined limits.
Sincerely,
Daniel Selman
[EMAIL PRO
hello
I've created a
Viewer-object, an AudioDevice and a ViewingPlatform and it
works.
A KeyNavigationBehavior
operate on the TransformGroup of the View-Branch, so i can walk through the 3D
world.
Then i have placed a PointSound in the middle
of the scene. The sound is playing.
When i c
Keep your initial Transform3D objects, reset button action is to set that
Transform3D to the TransformGroup node in question using its setTransform
method.
ArtMotion wrote:
> My users are somethimes "funny" and move the objects out of the view, so
> that they can't see it them anymore.
>
> Now I
can you send me a little example, that's incorporation it ? - I'm very new to
Java3D
Andrew Adrian wrote:
> There is a KeyNavigatorBehavior class built in to the Java3D API. the
> documentation is very good for it, and I think they mention it in the
> tutorial as well. The key map is a bit str
Can you send me a small example that's working with VRML Loader ?
I'm using Java3D 1.1.1 under Linux! Will it also run there?
Evan Drumwright wrote:
Chad, I'd
recommend you export in VRML97 format and use the VRML working group's
loader instead... Alternatively, you can export in .DXF format
My users are somethimes "funny" and move the objects out of the view, so
that they can't see it them anymore.
Now I would like the implement a "RESET"-Button. So that all objects are
restored (moved back) to the point were I created them first.
Please help me, I just have 1 (ONE) week left, to f
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