拎了个梨🍐🍈#.rs.restartR()require(sfnetworks)rm(list=ls());gc()st_network_join()#基于节点几何相等的两个空间网络连接library(sf,quietly=TRUE)node1=st_point(c(0,0))node2=st_point(c(1,0))node3=st_point(c(1,1))node4=st_point(c...
e2,e3))pts=net%>%st_bbox()%>%st_as_sfc()%>%st_sample(10,type="random")%>%st_set_crs(3857)%>%st_cast('POINT')# Blend points into the network.# --> By default tolerance is set to Inf# --> Meaning that all points get blendedb1=st_network_blend(net,pts...
"nodes")[121]+st_sfc(st_point(c(-10,100)))st_crs(p2)=st_crs(net)paths=st_network_paths(net,from=p1,to=p2)paths#> # A tibble: 1 x 2#> node_paths edge_paths#> <list> <list>#> 1 <int [33]> <int [32]>node_path<-paths%>%slice(1)%>%pull...
st_network_cost(net,from=c(495,121),to=c(495,121))#> [,1] [,2]#> [1,] 0.000 2094.555#> [2,] 2094.555 0.000# Providing nodes as spatial points.# Points that don't equal a node will be snapped to their nearest node.p1=st_geometry(net,"nodes")[495]+st_sfc(st_point(c(50...