# --------------------------------------------
# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "slopes" in publications use:'
type: software
license: GPL-3.0-only
title: 'slopes: Calculate Slopes of Roads, Rivers and Trajectories'
version: 1.0.1
doi: 10.32614/CRAN.package.slopes
identifiers:
- type: url
  value: https://docs.ropensci.org/slopes/
abstract: Calculates the slope (longitudinal gradient or steepness) of linear geographic
  features such as roads (for more details, see Ariza-López et al. (2019) <https://doi.org/10.1038/s41597-019-0147-x>)
  and rivers (for more details, see Cohen et al. (2018) <https://doi.org/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.
authors:
- family-names: Lovelace
  given-names: Robin
  email: rob00x@gmail.com
  orcid: https://orcid.org/0000-0001-5679-6536
- family-names: Félix
  given-names: Rosa
  email: rosamfelix@tecnico.ulisboa.pt
  orcid: https://orcid.org/0000-0002-5642-6006
- family-names: Talbot
  given-names: Joey
  email: j.d.talbot@leeds.ac.uk
  orcid: https://orcid.org/0000-0002-6520-4560
- family-names: Matos
  given-names: Gonçalo
  email: goncaloafmatos@tecnico.ulisboa.pt
  orcid: https://orcid.org/0009-0001-3489-1732
repository: https://cranhaven.r-universe.dev
repository-code: https://github.com/ropensci/slopes
commit: ad636fd12b403a28c3bb84799b4e85a7025ecd3e
url: https://github.com/ropensci/slopes/
date-released: '2026-05-24'
contact:
- family-names: Lovelace
  given-names: Robin
  email: rob00x@gmail.com
  orcid: https://orcid.org/0000-0001-5679-6536