我试图像这样在圣何塞上放置网格:
您可以使用以下代码直观地制作网格:
ca_cities = tigris::places(state = "CA") #using tigris package to get shape file of all CA cities
sj = ca_cities[ca_cities$NAME == "San Jose",] #specifying to San Jose
UTM_ZONE = "10" #the UTM zone for San Jose, will be used to convert the proj4string of sj into UTM
main_sj = sj@polygons[[1]]@Polygons[[5]] #the portion of the shape file I focus on. This is the boundary of san jose
#converting the main_sj polygon into a spatialpolygondataframe using the sp package
tst_ps …Run Code Online (Sandbox Code Playgroud)