The study shows that the tension spline function can adjust the coefficients automatically in terms of the node generating in the isoline tracking process, which resolves the intractable intersecting problem of the adjacent isoline smoothing.

• 经过研究可知，张力样条函数可根据追踪等值线过程中节点的疏密程度自动调整张力系数，解决了光滑部近等值线时相交这一个棘手的问题。