This software has evolved from fisheries research conducted at the
Pacific Biological Station (PBS) in 'Nanaimo', British Columbia, Canada. It
extends the R language to include two-dimensional plotting features similar
to those commonly available in a Geographic Information System (GIS).
Embedded C code speeds algorithms from computational geometry, such as
finding polygons that contain specified point events or converting between
longitude-latitude and Universal Transverse Mercator (UTM) coordinates.
Additionally, we include 'C++' code developed by Angus Johnson for the
'Clipper' library, data for a global shoreline, and other data sets in the
public domain. Under the user's R library directory '.libPaths()',
specifically in './PBSmapping/doc', a complete user's guide is offered and
should be consulted to use package functions effectively.

Jon T. Schnute [aut],
Nicholas Boers [aut],
Rowan Haigh [aut, cre],
Alex Couture-Beil [ctb],
Denis Chabot [ctb],
Chris Grandin [ctb],
Angus Johnson [ctb],
Paul Wessel [ctb],
Franklin Antonio [ctb],
Nicholas J. Lewin-Koh [ctb],
Roger Bivand [ctb]

c(
person(c("Jon", "T."), "Schnute", role = "aut", email = "schnutej@shaw.ca"),
person("Nicholas", "Boers", role = "aut", email = "boersn@macewan.ca"),
person("Rowan", "Haigh", role = c("aut", "cre"), email = "rowan.haigh@dfo-mpo.gc.ca"),
person("Alex", "Couture-Beil", role = "ctb"),
person("Denis", "Chabot", role = "ctb", email = "denis.chabot@dfo-mpo.gc.ca"),
person("Chris", "Grandin", role = "ctb", email = "chris.grandin@dfo-mpo.gc.ca"),
person("Angus", "Johnson", role = "ctb"),
person("Paul", "Wessel", role = "ctb"),
person("Franklin", "Antonio", role = "ctb"),
person(c("Nicholas", "J."), "Lewin-Koh", role = "ctb"),
person("Roger", "Bivand", role = "ctb"))

Jon T. Schnute <SchnuteJ@pac.dfo-mpo.gc.ca>,
Alex Couture-Beil <alex@mofo.ca>, and
Rowan Haigh <HaighR@pac.dfo-mpo.gc.ca>
PBS Modelling provides software to facilitate the design,
testing, and operation of computer models. It focuses particularly on
tools that make it easy to construct and edit a customized graphical
user interface (GUI). Although it depends heavily on the R interface
to the Tcl/Tk package, a user does not need to know Tcl/Tk. The
package contains examples that illustrate models built with other R
packages, including PBS Mapping, odesolve, and BRugs. It also serves
as a convenient prototype for building new R packages, along with
instructions and batch files to facilitate that process. The root
library directory of PBSmodelling includes a complete user guide
PBSmodelling-UG.pdf. To use this package effectively, please consult
the guide.