Plot a river
plot.Rd
Plots a river
object
Usage
# S4 method for river,numeric
plot(x, y, type, ...)
# S4 method for numeric,river
plot(x, y, type, ...)
# S4 method for river,missing
plot(x, type, ...)
Arguments
- x
A
river
object (or a numeric vector ify
is ariver
).- y
A numeric vector to be displayed (or a river if
x
is a numeric vector). It is equivalent totheme
indraw_subcatchments_OCN
anddraw_thematic_OCN
. Ify
is specified, the river must have been aggregated. See details.- type
Optional argument. If
type = "SC"
ortype = "subcatchments"
,draw_subcatchments_OCN
is used (provided that theriver
object is aggregated); iftype = "elev2D"
,draw_elev2D_OCN
is used; iftype = "contour"
,draw_contour_OCN
is used (provided that theriver
object contains theCM
field as produced bylandscape_OCN
orextract_river
); alternatively,draw_thematic_OCN
is used.- ...
Arguments passed to the plotting functions
draw_simple_OCN
,draw_contour_OCN
,draw_thematic_OCN
. See details.
Details
This is an interface to the plotting functions draw_simple_OCN
, draw_elev2D_OCN
, draw_contour_OCN
, draw_subcatchments_OCN
,
draw_thematic_OCN
. If the river
object does not have an elevation field (i.e., it has been generated
by create_OCN
or create_general_contour_OCN
, but landscape_OCN
has not
been run), the plotting function used is draw_simple_OCN
. If the elevation field is present, but the river
has not been aggregated (via aggregate_OCN
or aggregate_river
), the default plotting function used is
draw_contour_OCN
. If the river has been aggregated, draw_subcatchments_OCN
or draw_thematic_OCN
are used depending on type
.
Elevation maps can be produced with type = "elev2D"
, regardless of whether the river has been aggregated.
Adding scale bar and north arrow. Scale bar and north arrow can be added via terra
's functions sbar
and north
, respectively.
However, note that arguments d
and xy
must be specified by the user (because no rast
object is plotted). See example.
Examples
set.seed(1)
OCN <- OCN_20
plot(OCN) # equivalent to draw_simple_OCN
OCN <- landscape_OCN(OCN)
plot(OCN) # equivalent to draw_contour_OCN
plot(OCN, type = "elev2D") # equivalent to draw_elev2D_OCN
OCN <- aggregate_OCN(OCN, thrA = 4)
plot(OCN) # equivalent to draw_thematic_OCN (with no theme specified)
plot(OCN, OCN$AG$A) # equivalent to draw_thematic_OCN (with theme specified)
plot(OCN, type = "contour") # equivalent to draw_contour_OCN
plot(OCN, type = "SC") # equivalent to draw_subcatchments_OCN (with no theme specified)
plot(OCN, OCN$AG$A, type = "SC") # equivalent to draw_subcatchments_OCN (with theme specified)
# now add scale bar and north arrow
library(terra)
# sbar() # this would throw an error
# north()# this would throw an error
sbar(d=1, xy=c(min(OCN$FD$X), min(OCN$FD$Y)-1)) # this works
north(d=1, xy=c(max(OCN$FD$X)+1, max(OCN$FD$Y))) # this works