Re: [x3d-public] Using TimeSensor+PositionInterpolator with SAI

[Bradley Vender <bradley.vender@ndsu.edu>]

I decided to work through the bug case to see what was going on, and 
what's happening is that there is a set1Value call on 'addChildren'. 
The current set1Value methods are implemented to perform in the same 
manner that user code would:
  1.  read the old field value
  2.  change one or more values
  3.  issue a setValue call
which fails when the underlying field is not readable.

Are the multivalued field manipulators supposed to be able to perform 
such heroic modifications of inputonly fields?

--Brad Vender

Alan Hudson wrote:
> Tahir Emre KALAYCI wrote:
>
> > Hi all,
> > I m sending an example i am working on it. I got some problems+questions
> > about it.
> >
> > Here is what i am trying to do:
> > Example X3D contains a cube and this cube has moving animation.
> > with help of SAI i want to change route of the cube. Unfortunately some
> > problems arise:
> > 1)Cant i add more coordinates than i defined in the X3D file ? (for 
> > example
> > this X3D has 3 route coordinates (PositionInterpolator:PosInt) and i 
> > want to
> > increase this to 5 but for third and fourth coordinates throws
> > ArrayIndexOutOfBoundsException)
> > 2)Why this animation doesnt work on Xj3D?
> >
> > I hope i could explain.
> >
> > Best regards.
> Your first issue is with the startTime.  Do not make it -1.  Xj3D is not 
> rendering that correctly.
>
> A bug report has been filed for this:
>
> http://bugzilla.xj3d.org/show_bug.cgi?id=197
>
> > Notes:
> >
> > > From Spec:
> >
> > " The *keyValue* field shall contain exactly as many values as in the
> > *key*field."
> > So i am trying to change key field too, but same exception occurs.
> >
> > Note 2: Atachment contains a simple X3D and Java class
> The out of bounds issue is a known problem with this release.
>
> http://bugzilla.xj3d.org/show_bug.cgi?id=192
>
> You can work around this problem by using a setValue call to replace the 
> whole array instead of trying to grow it with set1Value.

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