mark_inside_polygon: Mark coordinates within a polygon

In psyosphere: Analyse GPS Data

Description

A column will be created that indicates whether a coordinate lies within a polygon or not. See also point.in.polygon.

Usage

mark_inside_polygon(
  tracks, polygon, bind = TRUE, drop = TRUE, cname = "in_polygon"
)

Arguments

tracks	psyo. Data frame with tracks.
polygon	list. A list with the column lon (numeric) and lat (numeric).
bind	logical. Return the distance as list (FALSE) or add it to tracks (TRUE).
drop	logical. If TRUE and only one observation is returned drop the data frame and collapse the return value to a vector.
cname	character. The name of the new column.

Value

psyo

Credit

If you use 'psyosphere' for commercial use or research, please support us by include one off the following references:

• MIT license: "psyosphere" by B. Ziepert, E. G. Ufkes & P. W. de Vries from https://CRAN.R-project.org/package=psyosphere

• APA: Ziepert, B., Ufkes, E., & de Vries, P. W. (2018). psyosphere: Analyse GPS Data. Retrieved from https://CRAN.R-project.org/package=psyosphere

• APA: Vries, P., Ziepert, B., & Ufkes, E. (2016). "De psychologie van bewegingen GPS-technologie voor de analyse van natuurlijk gedrag." Tijdschrift voor Human Factors 2: 11-15.

Author(s)

Benjamin Ziepert. Please send feedback to: [e-mail].

See Also

point.in.polygon

Examples

## Not run: \dontrun{
# Create polygon
lon <- c(4.92, 4.93, 4.93, 4.92, 4.92)
lat <- c(52.311, 52.311, 52.308, 52.308, 52.311)
poly <- data.frame(lon, lat)
remove(lon, lat)

# Get data
data(psyo)

# Plot polygon and data
plot <- plot_tracks(psyo, t_id = "")
plot <- plot_polygon(poly, plot = plot)
plot

# Mark coordinates within plygon
psyo <- mark_inside_polygon(psyo, poly)

# Plot inside polygon in different color
in_poly <- psyo[ psyo[,"in_polygon"] != 0,]
in_poly[,"dot_color"] <- "red"
plot_tracks(in_poly, plot = plot)
}
## End(Not run)

psyosphere documentation built on July 2, 2020, 12:08 a.m.