The point interpolation is mainly used to deal with natural geography data and the areal interpolation is usually used to solve the interpolation problem of social economic statistic data.
点内插主要用于自然地理数据的插值，而面内插则主要用于社会经济统计数据的插值问题。
Using the areal weighting interpolation and inverse distance weighted averaging, a spatial distribution model of GDP is established in this paper.
文章采用栅格数据模型，运用面积权重法和反距离加权法对GDP值进行了空间拓展。
Point interpolation algorithm is of important significance in analysis of rain-gauge station distribution, calculation of areal precipitation, and planning for rain-gauge net.
确定雨量站网密度是水文站网规划中的一个重要问题。
Point interpolation algorithm is of important significance in analysis of rain-gauge station distribution, calculation of areal precipitation, and planning for rain-gauge net.
确定雨量站网密度是水文站网规划中的一个重要问题。
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