Title: Filtering Matrix for Flow Mapping
Authors@R: c(person("Sylvain", "Blondeau", email = "blondeau.sylvain@yahoo.fr",role = c("aut","cre")),
person("Francoise", "Bahoken", email = "francoise.bahoken@ifsttar.fr", role = "aut"))
Description: Functions to prepare and filter an origin-destination matrix for thematic flow mapping purposes.
This comes after Bahoken, Francoise (2016), Mapping flow matrix a contribution, PhD in Geography - Territorial sciences. See Bahoken (2017) <doi:10.4000/netcom.2565>.
Suggests: knitr, rmarkdown, testthat, cartography
Imports: dplyr, g.data, graphics, ggplot2, maptools, plotly, rgdal,

person("Francoise", "Bahoken", email = "francoise.bahoken@univ-eiffel.fr", role = "aut"))
rgeos, reshape2, rlang, sf, sp, utils, igraph

Imports: dplyr, graphics, ggplot2, maptools, plotly, rgeos, reshape2,

Authors@R: person("Sebastian", "Jeworutzki", email = "sebastian.jeworutzki@ruhr-uni-bochum.de", role = c("aut", "cre"))
Description: Construct a continuous area cartogram by a rubber sheet distortion algorithm.

person("Sebastian", "Jeworutzki", email = "sebastian.jeworutzki@ruhr-uni-bochum.de", role = c("aut", "cre")),
person("Timothee", "Giraud", role = "ctb"),
person("Nicolas", "Lambert", role = "ctb"),
person("Roger", "Bivand", role = c("cph"), email = "Roger.Bivand@nhh.no"),
person("Edzer", "Pebesma", role = "cph"))
Description: Construct continuous and non-contiguous area cartograms.
Author: Sebastian Jeworutzki [aut, cre],

person("Sebastian", "Jeworutzki", email = "sebastian.jeworutzki@ruhr-uni-bochum.de", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-2671-5253")),
person("Edzer", "Pebesma", role = "cph"),
person("Jakub", "Nowosad", email = "nowosad.jakub@gmail.com", role = "ctb", comment = c(ORCID = "0000-0002-1057-3721"))

Imports: rgeos, sp, methods, sf, packcircles

comment = "Author of core C code for gsm and gn procedures"))
Description: Procedures for making continuous cartogram. Procedures available are:
flow based cartogram (Gastner & Newman (2004) <doi:10.1073/pnas.0400280101>),
fast flow based cartogram (Gastner, Seguy & More (2018) <doi:10.1073/pnas.1712674115>),
rubber band based cartogram (Dougenik et al. (1985)
SystemRequirements: FFTW (>=3.3.1); possible package: fftw-devel (rpm),
Author: Pierre-Andre Cornillon [aut, cre],
Flow-Based-Cartograms [cph] (Author of core C code for gsm and gn