Hi,
If you keep a referance to your original coord array then you can simply change the
values in that array directly in the
updateData() method. It goes something like the 'kinda-code' snippet below. If you use
BY_REF correctly you shouldn't need to
set anything other than the values in your original arrays.
eg
double[] coords;
initGemo() {
coords = new duoble[2];
..
..
la = new LineArray(.. BY_REF ..);
ga.setCoords(0, coords);
}
updateData(..) {
coords[0] = 1245.123;
coords[1] = 1334.234;
}
Cheers,
Brad
greg baboolal wrote:
>
> Hi,
>
> After an intermittent 12-hr period I finally decided
> to put the monkey-typewriter-shakesphere theory to
> test and came up with a remedial solution, that is
>
> line.updateData( new GeometryUpdater() {
> public void updateData(Geometry g) {
> g = shape3D.getGeometry();
> LineArray tempLine = (LineArray) g;
> tempLine = lineArray( verts2 );
> shape3D.setGeometry( tempLine );
> }
> });
>
> Still amazed that I had to initiate a new LineArray
> but it beats the overhead of a branchGroup. If there
> is a cleaner way to have done this please enlighten
> me.
>
> Thanks,
> Greg.
>
> --- greg baboolal <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > Florin thanks for the observation, I have now
> > implemented the switch group.
> >
> > It seems to do the job, except there is one little
> > part of th app which I can't get right now:
> >
> > I create a LineArray shape initial only having 2
> > verts, the ball's current position, however I then
> > need to be able to update the LineArray with a new
> > set
> > of co-ordinates, at present i'm using:
> >
> > line.setValidVertexCount(verts.length);
> > line.setCoordinates( 0 , verts );
> >
> > where verts is the new array set.
> >
> > but I keep getting the following error:
> > initial vertex index + valid vertex count > vertex
> > count
> >
> > Can anyone help?
> >
> > Greg.
> >
> >
> >
> >
> >
> >
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