The mathematical theory and merit of tension spline function in rainfall isoline smoothing were also introduced.
介绍了张力样条函数的数学原理及其在等值线光滑应用上的优点.
The system can complete not only basic database management, figure display and query but isoline form function.
该系统在完成了基本数据管理、图形显示及查询功能之外,还实现了等值线生成功能,大大简化了过去为分析矿化度、阴、阳离子分布等水化学规律而作的等值线绘制工作;
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