how to transform about an axis a rotation using Matrix3DTransformation ?

[lookang]

Hi prof!
according to
http://fem.um.es/Javadoc/OSP_EJS/org/opensourcephysics/numerics/Matrix3DTransformation.html#setOrigin%28double[]%29

i can transform a rotation about an axis of my choice say x,y,z = 0,1,0 meaning y-axis.

i added the codes

i changed i to j for the syntax creating italics in the words
for(int j=0;j<n; j++){

  rotations[j] = Matrix3DTransformation.rotationY(theta[j]);
}

the result is not what i wanted.

the sphere i added are rotating about it own axis, i want them rotate the coordinate system X,Y,Z


i wish to make the sphere move as if they were connected to the rectangle shapes
like in the video
http://www.nationalstemcentre.org.uk/elibrary/resource/2096/wave-machine/

no one seems to know as i have posted here a few days back.
http://www.compadre.org/osp/bulletinboard/TDetails.cfm?FID=59&TID=2227&ViewType=2#PID51631

any ideas?
thanks!

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[Fu-Kwun Hwang]

There is a Rotate property for Tex3d GUI element.

Matrix3DTransformation can be  used to transform a know shape object.
To transform the text , information about text is required-however, it is not available.

May be there are some new function in java3D which is possible to do this. However, I do not know.
May be you can ask Paco directly. Sorry! :-(

[lookang]

done!