| java.lang.Object com.sun.j3d.utils.behaviors.interpolators.CubicSplineSegment
CubicSplineSegment | public class CubicSplineSegment (Code) | | The CubicSplineSegment class creates the representation of a
TCB (Kochanek-Bartels Spline). This class takes 4 key frames as
its input (using TCBKeyFrame). If interpolating between the ith
and (i+1)th key frame then the four key frames that need to
be specified are the (i-1)th, ith, (i+1)th
and (i+2)th keyframes in order. The CubicSegmentClass
then pre-computes the hermite interpolation basis coefficients if the
(i+1)th frame has the linear flag set to zero. These are used to
calculate the interpolated position, scale and quaternions when they
requested by the user using the getInterpolated* methods. If the the
(i+1)th frame's linear flag is set to 1 then the class uses
linear interpolation to calculate the interpolated position, sccale and
quaternions it returns through the getInterpolated* methods.
since: Java3D 1.1 |
Method Summary | |
public float | computeLength(float u) Computes the length of the curve at a given point between
key frames.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. | public void | getInterpolatedPosition(float u, Point3f newPos) Computes the interpolated position along the curve at a given point
between key frames and returns a Point3f with the interpolated
x, y, and z scale components. | public void | getInterpolatedPositionVector(float u, Vector3f newPos) Computes the interpolated position along the curve at a given point
between key frames and returns a Vector3f with the interpolated
x, y, and z scale components. | public void | getInterpolatedQuaternion(float u, Quat4f newQuat) Computes the interpolated quaternion along the curve at
a given point between key frames. | public void | getInterpolatedScale(float u, Point3f newScale) Computes the interpolated scale along the curve at a given point
between key frames and returns a Point3f with the interpolated
x, y, and z scale components. | public float | getInterpolatedValue(float u) Computes the ratio of the length of the spline from the ith
key frame to the position specified by u to the length of the entire
spline segment from the ith key frame to the (i+1)
th key frame. |
c0c1c2c3 | Point3f c0c1c2c3(Code) | | |
e0e1e2e3 | Point3f e0e1e2e3(Code) | | |
modCoeff | final static double modCoeff(Code) | | |
modRoot | final static double modRoot(Code) | | |
one_minus_b_in | float one_minus_b_in(Code) | | |
one_minus_b_out | float one_minus_b_out(Code) | | |
one_minus_c_in | float one_minus_c_in(Code) | | |
one_minus_c_out | float one_minus_c_out(Code) | | |
one_minus_t_in | float one_minus_t_in(Code) | | |
one_minus_t_out | float one_minus_t_out(Code) | | |
one_plus_b_in | float one_plus_b_in(Code) | | |
one_plus_b_out | float one_plus_b_out(Code) | | |
one_plus_c_in | float one_plus_c_in(Code) | | |
one_plus_c_out | float one_plus_c_out(Code) | | |
CubicSplineSegment | CubicSplineSegment()(Code) | | Default constructor
|
CubicSplineSegment | CubicSplineSegment(TCBKeyFrame kf0, TCBKeyFrame kf1, TCBKeyFrame kf2, TCBKeyFrame kf3)(Code) | | Creates a cubic spline segment between two key frames using the
key frames provided. If creating a spline between the ith frame and
the (i+1)th frame then send down the (i - 1)th,
ith , (i+1)th and the (i+2)th key
frames.
Parameters: kf0 - (i - 1)th Key Frame Parameters: kf1 - ith Key Frame Parameters: kf2 - (i + 1)th Key Frame Parameters: kf3 - (i + 2)th Key Frame |
computeLength | public float computeLength(float u)(Code) | | Computes the length of the curve at a given point between
key frames.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. |
getInterpolatedPosition | public void getInterpolatedPosition(float u, Point3f newPos)(Code) | | Computes the interpolated position along the curve at a given point
between key frames and returns a Point3f with the interpolated
x, y, and z scale components. This routine uses linear
interpolation if the (i+1)th key frame's linear
value is equal to 1.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. Parameters: newPos - returns the interpolated x,y,z position in a Point3f |
getInterpolatedPositionVector | public void getInterpolatedPositionVector(float u, Vector3f newPos)(Code) | | Computes the interpolated position along the curve at a given point
between key frames and returns a Vector3f with the interpolated
x, y, and z scale components. This routine uses linear
interpolation if the (i+1)th key frame's linear
value is equal to 1.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. Parameters: newPos - returns the interpolated x,y,z position in a Vector3f. |
getInterpolatedQuaternion | public void getInterpolatedQuaternion(float u, Quat4f newQuat)(Code) | | Computes the interpolated quaternion along the curve at
a given point between key frames. This routine uses linear
interpolation if the (i+1)th key frame's linear
value is equal to 1.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. Parameters: newQuat - returns the value of the interpolated quaternion |
getInterpolatedScale | public void getInterpolatedScale(float u, Point3f newScale)(Code) | | Computes the interpolated scale along the curve at a given point
between key frames and returns a Point3f with the interpolated
x, y, and z scale components. This routine uses linear
interpolation if the (i+1)th key frame's linear
value is equal to 1.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. Parameters: newScale - returns the interpolated x,y,z scale value in a Point3f |
getInterpolatedValue | public float getInterpolatedValue(float u)(Code) | | Computes the ratio of the length of the spline from the ith
key frame to the position specified by u to the length of the entire
spline segment from the ith key frame to the (i+1)
th key frame. When the (i+1)th key frame's linear
value is equal to 1, this is meaninful otherwise it should return u.
Parameters: u - specifies the point between keyframes where 0 <= u <= 1. the interpolated ratio |
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