Has anybody also have problems with Billboards
that rotate a
text3d about a point. I wrote a progam with a tg.
at this tg I add a Sphere and
a text3d object. the text3d object has an
billboard that rotate the text object
about a point to the position of the view.
When I zoom behind the spehre or translate the
scene with the standard
mouse behaviors too fast, the scene begins to
flicker and the text3d object runs off.
could anyoune help??
code for making text3d with
billboard
--------------------------------------------------------------------------------------
�
public TransformGroup makeText(String text, int
textSize)
{
font3d = new Font3D(new Font("Helvetica",
Font.PLAIN, textSize), new FontExtrusion());
tg = new
TransformGroup();
tg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
billboard
= new
Billboard(tg);
billboard.setAlignmentMode(Billboard.ROTATE_ABOUT_POINT);
BoundingSphere
bounds = new BoundingSphere( new Point3d( 0.0, 0.0, 0.0 ), 5000.0
);
billboard.setSchedulingBounds(bounds);
Text3D
textGeom = new Text3D(font3d, text, new Point3f(0.0f, 7.0f,
0.0f),Text3D.ALIGN_CENTER, Text3D.PATH_RIGHT);
Shape3D
textShape = new Shape3D(textGeom);
Appearance
ap = new Appearance();
ColoringAttributes ca = new
ColoringAttributes(Constants.TEXT_COLOR,
ColoringAttributes.NICEST);
textShape.setAppearance(ap);
textShape.setPickable(false);
tg.addChild(textShape);
tg.addChild(billboard);
return
tg;
}
