plot_dz {slopes} | R Documentation |
Plot a digital elevation profile based on xyz data
Description
Plot a digital elevation profile based on xyz data
Usage
plot_dz(
d,
z,
fill = TRUE,
horiz = FALSE,
pal = colorspace::diverging_hcl,
...,
legend_position = "top",
col = "black",
cex = 0.9,
bg = grDevices::rgb(1, 1, 1, 0.8),
title = "Slope colors (percentage gradient)",
brks = c(3, 6, 10, 20, 40, 100),
seq_brks = NULL,
ncol = 4
)
Arguments
d |
Cumulative distance |
z |
Elevations at points across a linestring |
fill |
Should the profile be filled? |
horiz |
Should the legend be horizontal ( |
pal |
Color palette to use, |
... |
Additional parameters to pass to legend |
legend_position |
The legend position. One of "bottomright", "bottom", "bottomleft", "left", "topleft", "top" (the default), "topright", "right" and "center". |
col |
Line colour, black by default |
cex |
Legend size, 0.9 by default |
bg |
Legend background colour, |
title |
Title of the legend, "Slope colors (percentage gradient)" by default. |
brks |
Breaks in colour palette to show.
|
seq_brks |
Sequence of breaks to show in legend.
By default this is calculated from |
ncol |
Number of columns in legend, 4 by default. |
Details
This function is called by plot_slope()
but can be used directly.
Value
A plot is created on the current graphics device.
Examples
library(sf)
route_xyz = lisbon_road_segment_3d
m = st_coordinates(route_xyz)
d = cumsum(sequential_dist(m, lonlat = FALSE))
d = c(0, d)
z = m[, 3]
plot_dz(d, z, brks = c(3, 6, 10, 20, 40, 100))