terra (version 1.9-11)

plet: Plot with leaflet

Description

Plot a SpatRaster(Collection) or SpatVector(s) to make an interactive leaflet map that is displayed in your browser.

The arguments of plet are similar to those of plot, making it easier to use leaflet (if you also use plot).

Usage

# S4 method for SpatRaster
plet(x, y=1, col, alpha=0.8, main=names(x), 
	tiles=c("Streets", "Esri.WorldImagery", "OpenTopoMap"), 
	wrap=TRUE, maxcell=500000, stretch=NULL, legend="bottomright", 
	shared=FALSE, panel=FALSE, collapse=TRUE, type=NULL, breaks=NULL,
	breakby="eqint", range=NULL, fill_range=FALSE, map=NULL, ...) 

# S4 method for SpatRasterCollection
plet(x, col, alpha=0.8, main=names(x), 
	tiles=c("Streets", "Esri.WorldImagery", "OpenTopoMap"), 
	wrap=TRUE, maxcell=500000, stretch=NULL, legend="bottomright", type=NULL, 
	breaks=NULL, breakby="eqint", range=NULL, fill_range=FALSE, map=NULL, ...)

# S4 method for SpatVector
plet(x, y="", col, main=y, cex=1, 
	lwd=2, lty=NULL, border="black", alpha=c(0.3, 1), popup=TRUE, label=FALSE,
	split=FALSE, tiles=c("Streets", "Esri.WorldImagery", "OpenTopoMap"), 
	wrap=TRUE, legend="bottomright", collapse=FALSE, type=NULL, breaks=NULL,
	breakby="eqint", sort=TRUE, reverse=FALSE, map=NULL, fill=NULL, ...)

# S4 method for SpatVectorCollection
plet(x, y="", col, main=y, cex=1, 
	lwd=2, lty=NULL, border="black", alpha=c(0.3, 1), popup=TRUE, label=FALSE, 
	tiles=c("Streets", "Esri.WorldImagery", "OpenTopoMap"), 
	wrap=TRUE, legend="bottomright", collapse=FALSE, type=NULL, breaks=NULL, 
	breakby="eqint", sort=TRUE, reverse=FALSE, map=NULL, fill=NULL, ...)

# S4 method for leaflet
lines(x, y, col, lwd=2, lty=NULL, alpha=1, 
	label=NULL, popup=FALSE,...)
# S4 method for leaflet
points(x, y, col, border=col, cex=1, lwd=2, lty=NULL, 
	alpha=c(.3, 1), label=1:nrow(y), popup=FALSE, ...)
# S4 method for leaflet
polys(x, y, col, lwd=2, lty=NULL, 
	border="black", alpha=c(0.3, 1), popup=TRUE, label=NULL, fill=NULL, ...)

See Also

plot

Examples

if (FALSE) {
if (require(leaflet) && (packageVersion("leaflet") > "2.1.1")) {

v <- vect(system.file("ex/lux.shp", package="terra"))
p <- spatSample(as.polygons(v, ext=T), 30)
values(p) = data.frame(id=11:40, name=sample(letters, 30, replace=TRUE))

m <- plet(v, "NAME_1", tiles="", border="blue")
m <- points(m, p, col="red", cex=2, popup=T)
lines(m, v, lwd=1, col="white")

plet(v, "NAME_1", split=TRUE, alpha=.2) |> 
  points(p, col="white", border="red", cex=12, popup=TRUE, lwd=3, lty="1 4",
   	clusterOptions = leaflet::markerClusterOptions())

s <- svc(v, p)
names(s) <- c("the polys", "set of points")
plet(s, col=c("red", "blue"), lwd=1)


r <- rast(system.file("ex/elev.tif", package="terra"))
plet(r, main="Hi\nthere", tiles=NULL) |> lines(v, lwd=1)

plet(r, tiles="OpenTopoMap") |> lines(v, lwd=2, col="blue")

x <- c(r, 50*classify(r, 5))
names(x) <- c("first", "second")

# each their own legend
plet(x, 1:2, collapse=FALSE) |> lines(v, lwd=2, col="blue", lty="5,5")

# shared legend
plet(x, 1:2, shared=TRUE, collapse=FALSE) |> lines(v, lwd=2, col="blue")

}}