> From: Jesse Thompson <[EMAIL PROTECTED]>
>
>
> I am trying to generate a set of normals for a TriangleStripArray (TSA)
> object. I'm trying to use the NormalGenerator, so I need to pass the
> coordinates on to a GeometryInfo object. In order to do this, (please
> correct me if I'm wrong) I believe I have to get the coordinates from the
> TSA to a Point3f[]. I am intializing the Point3f[] with
>
> Point3f[] temp = new Point3f[tsa.getVertexCount()];
>
> and then
>
> tsa.getCoordinates(0,temp); // the 0 indicates where to start in the tsa
>
> I am getting a NullPointerException at:
>
> at javax.media.j3d.GeometryArrayRetained.getCoordinates
>
> Which corresponds to the tsa.getCoordinates() call above.
>
> Does anybody know how I can get these TSA coordinates over to the
> GeometryInfo object?
You have initialized the Point3f[] array, but not it's contents. Try allocating
a Point3f for each entry in the array and see if that works:
for (int i = 0; i < temp.length; i++) {
temp[i] = new Point3f();
}
tsa.getCoordinates(0, temp);
Doug Gehringer
Sun Microsystems
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