plot_slope: Plot slope data for a 3d linestring with base R graphics

In ITSLeeds/slopes: Calculate Slopes of Roads, Rivers and Trajectories

Plot slope data for a 3d linestring with base R graphics

Description

Plot slope data for a 3d linestring with base R graphics

Usage

plot_slope(
  route_xyz,
  lonlat = sf::st_is_longlat(route_xyz),
  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 = seq(from = 3, to = length(brks) * 2 - 2),
  ncol = 4,
  ...
)

Arguments

route_xyz	An sf linestring with x, y and z coordinates, representing a route or other linear object.
lonlat	Are the routes provided in longitude/latitude coordinates? By default, value is from the CRS of the routes (sf::st_is_longlat(routes)).
fill	Should the profile be filled? TRUE by default
horiz	Should the legend be horizontal (FALSE by default)
pal	Color palette to use, colorspace::diverging_hcl by default.
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, grDevices::rgb(1, 1, 1, 0.8) by default.
title	Title of the legend, NULL by default.
brks	Breaks in colour palette to show. c(1, 3, 6, 10, 20, 40, 100) by default.
seq_brks	Sequence of breaks to show in legend. Includes negative numbers and omits zero by default
ncol	Number of columns in legend, 4 by default.
...	Additional parameters to pass to legend

Value

A plot showing the elevation profile associated with a linestring.

Examples

plot_slope(lisbon_route_3d)
route_xyz = lisbon_road_segment_3d
plot_slope(route_xyz)
plot_slope(route_xyz, brks = c(1, 2, 4, 8, 16, 30))
plot_slope(route_xyz, s = 5:8)

ITSLeeds/slopes documentation built on Oct. 13, 2024, 3:54 a.m.