.projNowhere

This is used in various places when converting <code>agentMatrix</code> objects to
<code>SpatialPoints</code> for use with functions, such as <code><a rd-options="raster" href="/link/buffer?package=NetLogoR&version=0.3.9&to=raster" data-mini-rdoc="raster::buffer">buffer</a></code>.
None of these functions results in any real geospatial information being conserved,
other than distance and angle calculations. Buffering still occurs on the
unit-less World. This is therefore a way to allow <code>sp</code> and <code>raster</code>
functions to work as if a cell in the World was equal to 1 m. The resulting
answers will be converted back to units of "cells", not "m".
The <code>CRS()</code> operation is relatively time consuming.
Having a single object usable throughout is much faster.

internal

Build and run spatially explicit
agent-based models using only the R platform. 'NetLogoR' follows the same
framework as the 'NetLogo' software
(Wilensky, 1999 <http://ccl.northwestern.edu/netlogo/>) and is a translation
in R of the structure and functions of 'NetLogo'.
'NetLogoR' provides new R classes to define model agents and functions to
implement spatially explicit agent-based models in the R environment.
This package allows benefiting of the fast and easy coding phase from the
highly developed 'NetLogo' framework, coupled with the versatility, power
and massive resources of the R software.
Examples of three models (Ants <http://ccl.northwestern.edu/netlogo/models/Ants>,
Butterfly (Railsback and Grimm, 2012) and Wolf-Sheep-Predation
<http://ccl.northwestern.edu/netlogo/models/WolfSheepPredation>) written using
'NetLogoR' are available. The 'NetLogo' code of the original version of these
models is provided alongside.
A programming guide inspired from the 'NetLogo' Programming Guide
(<https://ccl.northwestern.edu/netlogo/docs/programming.html>) and a dictionary
of 'NetLogo' primitives (<https://ccl.northwestern.edu/netlogo/docs/dictionary.html>)
equivalences are also available.
NOTE: To increment 'time', these functions can use a for loop or can be
integrated with a discrete event simulator, such as 'SpaDES'
(<https://cran.r-project.org/package=SpaDES>).
The suggested package 'fastshp' can be installed with
'install.packages("fastshp", repos = "https://rforge.net", type = "source")'.

Eliot J B

NetLogoR

Build and Run Spatially Explicit Agent-Based Models

Sarah Bauduin

Eliot J B McIntire

Alex M Chubaty

Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources Canada 

.projNowhere function

An object of class <code>CRS</code> of length 1.

Format

This is used in various places when converting <code>agentMatrix</code> objects to
<code>SpatialPoints</code> for use with functions, such as <code><a rd-options='raster' href='buffer'>buffer</a></code>.
None of these functions results in any real geospatial information being conserved,
other than distance and angle calculations. Buffering still occurs on the
unit-less World. This is therefore a way to allow <code>sp</code> and <code>raster</code>
functions to work as if a cell in the World was equal to 1 m. The resulting
answers will be converted back to units of "cells", not "m".
The <code>CRS()</code> operation is relatively time consuming.
Having a single object usable throughout is much faster.

.projNowhere: Internal CRS usage

Description

Usage

Arguments

Format