//create the Interpolator by default interpolate //between (My space web page) x =
//create the Interpolator by default interpolate //between x = 0 and x = 1 Interpolator interpolator = new PositionInterpolator ( alpha, tg ); RotationInterpolator The RotationInterpolatorcan be used to linearly interpolate between two sets of axis angle rotations. The RotationInterpolatormodifies a TransformGroup, which will in turn affect the position of all its child Nodes. The TransformGroupmust have the ALLOW_TRANSFORM_WRITEcapability set. //create the Interpolator by default interpolate //between Y angle = 0 and Y angle = 2p Interpolator interpolator = new RotationInterpolator ( alpha, tg ); ScaleInterpolator The ScaleInterpolatorcan be used to linearly interpolate between two scale values for an axis. The ScaleInterpolatormodifies a TransformGroup, which will in turn affect the position of all its child Nodes. The TransformGroupmust have the ALLOW_TRANSFORM_WRITEcapability set. //create the Interpolator by default interpolate //between a uniform scale of 0 and 1 Interpolator interpolator = new ScaleInterpolator ( alpha, tg ); TransparencyInterpolator The TransparencyInterpolatorcan be used to linearly interpolate between two transparency values. The TransparencyInterpolatormodifies an Appearance s TransparencyAttributes. The TransparencyAttributesmust have the ALLOW_VALUE_WRITEcapability set. //create the TransparencyAttributes TransparencyAttributes transparency = new TransparencyAttributes(); //set the required capability bit transparency.setCapability( TransparencyAttributes.ALLOW_VALUE_WRITE ); //set the transparency mode transparency.setTransparencyMode( TransparencyAttributes.NICEST ); //assign the transparency to an Appearance app.setTransparencyAttributes( transparency ); //create the interpolator and interpolate //between 0 (opaque) and 0.8. Interpolator interpolator = new TransparencyInterpolator( alpha, app.getTransparencyAttributes(), RotPosScalePathInterpolator The RotPosScalePathInterpolatoris the most flexible of all the PathInterpolators. As its name suggests, it allows the rotation, position, and scale of a TransformGroupto be modified. Rotations, positions, and scales are specified at a series of Alpha values (or knots). The rotation, position, and scale defines a pose that, along with the time information, allows the Interpolatorto linearly interpolate between poses based on the Alpha value and the defined knots. 201
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