activatr
(pronounced like the word “activator”) is a library for
parsing GPX files into a standard format, and then manipulating and
visualizing those files.
You can install the released version of activatr from CRAN with:
install.packages("activatr")
And the development version from GitHub with:
# install.packages("devtools")
devtools::install_github("dschafer/activatr")
library(activatr)
activatr
contains function to parse, analyze, and display GPX
activities. The most basic thing you can do is parse a GPX file into a
tibble:
# Get the running_example.gpx file included with this package.
filename <- system.file(
"extdata",
"running_example.gpx.gz",
package = "activatr"
)
df <- parse_gpx(filename)
| lat | lon | ele | time | |---------:|----------:|-----:|:--------------------| | 37.80405 | -122.4267 | 17.0 | 2018-11-03 14:24:45 | | 37.80406 | -122.4267 | 16.8 | 2018-11-03 14:24:46 | | 37.80408 | -122.4266 | 17.0 | 2018-11-03 14:24:48 | | 37.80409 | -122.4266 | 17.0 | 2018-11-03 14:24:49 | | 37.80409 | -122.4265 | 17.2 | 2018-11-03 14:24:50 |
Once we have that data, we can visualize it atop a map:
library(ggmap)
library(ggplot2)
ggmap::ggmap(get_ggmap_from_df(df)) +
theme_void() +
geom_path(aes(x = lon, y = lat), linewidth = 1, data = df, color = "red")
For more details on how to use the package, check out
vignette("activatr")
.
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