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Minicharts for dynamic {leaflet} maps
For a few years now, it has become easy to create interactive maps
with R thanks to the package leaflet
by the Rstudio team.
Nevertheless, it only provides only a few functions to create basic
shapes on a map, so the information that can be represented on a single
map is limited: if you have some data associated to some points, you can
only represent at most two variables by drawing circles and changing
their radius and color according to data.
leaflet.minicharts
is an R package that provides two
functions to add and update small charts on an interactive maps created
with the package leaflet
. These charts can be used to
represent as many variables as desired associated to geographical
points. Currently, three types of chart are supported: barcharts (the
default), pie charts and polar area charts (with two variants:
“polar-area” and “polar-radius”, where values are represented
respectively by the area or the radius of the slices).
Here are screenshots of sample outputs:
You can install the package from CRAN:
install.packages("leaflet.minicharts")
To see how simple it is to use this package, have a look at the package vignette.
Contributions to the library are welcome and can be submitted in the form of pull requests to this repository:
https://github.com/rte-antares-rpackage/leaflet.minicharts
This package contains some javascript code. To modify it requires
npm
and grunt
. First modify files in the
javascript
folder. Then in a terminal, run the following
commands:
cd javascript
npm install
grunt build
Copyright 2015-2018 RTE (France)
This Source Code is subject to the terms of the GNU General Public License, version 2 or any higher version. If a copy of the GPL-v2 was not distributed with this file, You can obtain one at https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.