Method angle

src/main/java/com/volmit/adapt/util/Vector3d.java:184–189

Returns the angle in radians between this vector and the vector parameter; the return value is constrained to the range [0,PI]. @param v1 the other vector @return the angle in radians in the range [0,PI]

(Vector3d v1)

     * @return the angle in radians in the range [0,PI]
     */
    public final double angle(Vector3d v1) {
        double vDot = this.dot(v1) / (this.length() * v1.length());
        if (vDot < -1.0) vDot = -1.0;
        if (vDot > 1.0) vDot = 1.0;
        return Math.acos(vDot);
    }


}