join: Merge two spatial 'slendr' objects into one

joinR Documentation

Merge two spatial slendr objects into one


Merge two spatial slendr objects into one


join(x, y, name = NULL)



Object of the class slendr


Object of the class slendr


Optional name of the resulting geographic region. If missing, name will be constructed from the function arguments.


Object of the class slendr_region which encodes a standard spatial object of the class sf with several additional attributes (most importantly a corresponding slendr_map object, if applicable).


# create a blank abstract world 1000x1000 distance units in size
blank_map <- world(xrange = c(0, 1000), yrange = c(0, 1000), landscape = "blank")

# it is possible to construct custom landscapes (islands, corridors, etc.)
island1 <- region("island1", polygon = list(c(10, 30), c(50, 30), c(40, 50), c(0, 40)))
island2 <- region("island2", polygon = list(c(60, 60), c(80, 40), c(100, 60), c(80, 80)))
island3 <- region("island3", center = c(20, 80), radius = 10)
archipelago <- island1 %>% join(island2) %>% join(island3)

custom_map <- world(xrange = c(1, 100), c(1, 100), landscape = archipelago)

# real Earth landscapes can be defined using freely-available Natural Earth
# project data and with the possibility to specify an appropriate Coordinate
# Reference System, such as this example of a map of Europe

real_map <- world(xrange = c(-15, 40), yrange = c(30, 60), crs = "EPSG:3035")

slendr documentation built on June 22, 2024, 6:56 p.m.