利用Voronoi Polygons tool 製作台灣地區雨量站的多邊形法

Voronoi polygons is a systematic way to divide spaces into a number of regions using a set of points specified at the beginning.

For each point there will be a corresponding region that consists of the points closer to that points than any other. These regions are called voronoi cells.

Voronoi polygons are useful in that they allow mappers to visually see the distribution of points through shapes.

更多的定義可以參考Wiki click here.

目前接一個案子，要將雨量累積透過徐昇式法製作成Counter Area，但比較不同的是，要將好發土石流流域加入計算，所以更為複雜，仍需要更多的校驗，但目前的製作是要做為政府機關決策使用，加油吧