在VTK下彩球蝶形插值-Under the colored balls in the VTK butterfly interpolation ~~~~~~~~~

计算球谐函数图形，对球谐函数图形进行仿真-Graphic computing spherical harmonics, the spherical harmonic function graphics simulation

能够实现彩球线性插值，同时，在鼠标交互下实现运转，显示图形结果。-Ball can achieve linear interpolation, while achieving operating under mouse interaction, display graphical results.