java+geotools实现河流分段+垂线段
利用动态分段技术进行河流一维水质扩散模拟
geotools split line by a distance:https://stackoverflow.com/questions/33549915/how-to-split-linestring-into-parts-every-x-meters-with-java-jts(How to split linestring into parts every x meters with java JTS)
https://github.com/geotools/geotools/blob/main/modules/unsupported/process-geometry/src/main/java/org/geotools/process/geometry/GeometryFunctions.java