Package: slopes
Title: Calculate Slopes of Roads, Rivers and Trajectories
Version: 2.0.0
Authors@R: c(
    person("Robin", "Lovelace", email = "rob00x@gmail.com", role = c("aut", "cre", "cph"),
      comment = c(ORCID = "0000-0001-5679-6536")),
    person("Rosa", "Félix", email = "rosamfelix@tecnico.ulisboa.pt", role = c("aut"), 
      comment = c(ORCID = "0000-0002-5642-6006")),
    person("Joey", "Talbot", email = "j.d.talbot@leeds.ac.uk", role = c("aut"), 
      comment = c(ORCID = "0000-0002-6520-4560")),
    person("Gonçalo", "Matos", email = "goncaloafmatos@tecnico.ulisboa.pt", role = c("aut"),
      comment = c(ORCID = "0009-0001-3489-1732")),
    person("Dan", "Olner", role = c("rev"), comment = "Dan reviewed the package for rOpenSci, see https://github.com/ropensci/software-review/issues/420#issuecomment-857662657 "),
    person("Andy", "Teucher", role = c("rev"), comment = "Andy reviewed the package for rOpenSci, see https://github.com/ropensci/software-review/issues/420#issuecomment-858231647 ")
  )
Description: Calculates the slope (longitudinal gradient or steepness)
        of linear geographic features such as roads (for more details,
        see Ariza-López et al. (2019) <doi:10.1038/s41597-019-0147-x>)
        and rivers (for more details, see Cohen et al. (2018)
        <doi:10.1016/j.jhydrol.2018.06.066>). It can use local Digital
        Elevation Model (DEM) data or download DEM data via the
        'ceramic' package. The package also provides functions to add
        elevation data to linestrings and visualize elevation profiles.
License: GPL-3
URL: https://github.com/ropensci/slopes/,
        https://docs.ropensci.org/slopes/
BugReports: https://github.com/ropensci/slopes/issues
Encoding: UTF-8
LazyData: true
Roxygen: list(markdown = TRUE)
Imports: sf, terra, methods, pbapply, geodist, colorspace
Depends: R (>= 2.10)
Suggests: knitr, rmarkdown, ceramic, bookdown, covr, testthat,
        osmextract, stplanr, dplyr, tmap, leaflet, bench, rlang
Config/Needs/website: generics
VignetteBuilder: knitr
Config/testthat/edition: 3
Config/roxygen2/version: 8.0.0
Config/pak/sysreqs: libabsl-dev cmake libgdal-dev gdal-bin libgeos-dev
        libssl-dev libproj-dev libsqlite3-dev libudunits2-dev
Repository: https://ropensci.r-universe.dev
Date/Publication: 2026-06-25 18:15:04 UTC
RemoteUrl: https://github.com/ropensci/slopes
RemoteRef: master
RemoteSha: a50419a7198c9bfed27049c172e2b14ce0b5c7a9
NeedsCompilation: no
Packaged: 2026-06-25 19:57:26 UTC; root
Author: Robin Lovelace [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0001-5679-6536>),
  Rosa Félix [aut] (ORCID: <https://orcid.org/0000-0002-5642-6006>),
  Joey Talbot [aut] (ORCID: <https://orcid.org/0000-0002-6520-4560>),
  Gonçalo Matos [aut] (ORCID: <https://orcid.org/0009-0001-3489-1732>),
  Dan Olner [rev] (Dan reviewed the package for rOpenSci, see
    https://github.com/ropensci/software-review/issues/420#issuecomment-857662657),
  Andy Teucher [rev] (Andy reviewed the package for rOpenSci, see
    https://github.com/ropensci/software-review/issues/420#issuecomment-858231647)
Maintainer: Robin Lovelace <rob00x@gmail.com>