嗨，我有4000点的特征，我正在寻找一种方法来单独计算贡献面积。这些代表大陆城市供水系统的排水管。因此，重叠的多边形是，每个点的分水岭的独立计算是我所寻找的。分水岭工具本身给我提供了错误的答案，我尝试用一个小模型来接近，我已经粘贴在下面。csv实际上是包含一个ID号和坐标的4000个街道排水沟的列表。我在运行这个模型时遇到的问题是，在每次迭代中，所有4000个点都被打断了(我认为)，而且文件每次都被覆盖。我正在寻找的是一种方法来运行4000次以下的“for循环”:1)从列表中只选择一个点2)只快照一个点到1米距离内高度累积的单元格3)计算一个点的贡献面积4)存储贡献面积的值在一个列表或.shp与ID，这样我就可以确定哪个排水有什么贡献面积。如果循环将所有多边形或值存储在一个列表或shp中，这样我就没有4000个单独的文件了，这也非常方便。我使用的是ArcMap 10.8.1桌面应用程序。有办法做到这一点吗? I have been browsing around the forum for a while and could not find anything. I also contacted reddit with no luck. All help is much appreciated as I have spent many hours trying to figure this out. I am new to ArcMap and just recently noticed the model builder. Other input on methods such as toolboxes to acheive my goal is also much appreciated. Wish you all a good day. Hopefully I am in the right thread. Kind regards, Frustrated master student
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