VC结合VTK来绘制样条曲线SPLIEN并输出相应点的坐标。-VC combination of VTK to draw spline curves SPLIEN and output the coordinates of corresponding points.

在OpenGL环境下反求B样条曲线的控制顶点，并以此画出B样条曲线。其中，将数据点加入输出点列之中。-Give B-spline curve s control points in OpenGL and the program can draw the new B-splien curve.