cyclestreets_route      A journey from CycleStreets.net
dem_lisbon_raster       Elevation in central Lisbon, Portugal
elevation_add           Take a linestring and add a third (z) dimension
                        to its coordinates
elevation_extract       Extract elevations from coordinates
elevation_get           Get elevation data from hosted maptile services
lisbon_road_network     Road segments in Lisbon
lisbon_road_segment     A road segment in Lisbon, Portugal
lisbon_route            A route composed of a single linestring in
                        Lisbon, Portugal
magnolia_xy             Road segments in Magnolia, Seattle
plot_dz                 Plot a digital elevation profile based on xyz
                        data
plot_slope              Plot slope data for a 3d linestring with base R
                        graphics
sequential_dist         Calculate the sequential distances between
                        sequential coordinate pairs
slope_matrix            Calculate the gradient of line segments from a
                        3D matrix of coordinates
slope_raster            Calculate the gradient of line segments from a
                        raster dataset
slope_vector            Calculate the gradient of line segments from
                        distance and elevation vectors
slope_xyz               Extract slopes from xyz data frame or sf
                        objects
z_value                 Calculate summary values for 'Z' elevation
                        attributes
