add_markers: Add markers.

In evolMap: Dynamic and Interactive Maps

Add markers.

Description

Add markers to the interactive map.

Usage

add_markers(map, data, latitude = NULL, longitude = NULL, name = NULL,
  label = NULL, image = NULL, color = NULL, shape = NULL, text = NULL,
  info = NULL, infoFrame = c("right","left"),
  start = NULL, end = NULL, period = NULL,
  markerCluster = FALSE, roundedIcons = TRUE, jitteredPoints = 0)

Arguments

map	an object of class evolMap.
data	a marker data frame with the locations and information to show in each marker. Its column names can be passed as parameters to the arguments of the function.
latitude	name of the column with the latitude coordinates for each marker (first column by default).
longitude	name of the column with the longitude coordinates for each marker (second column by default).
name	name of the column with names in the marker data frame.
label	name of the column with labels in the marker data frame.
image	name of the column with the path to marker image files in the marker data frame.
color	name of the column with color variable in the marker data frame.
shape	name of the column with shape variable in the marker data frame.
text	name of the column with texts in the marker data frame. This information will be shown as a popup.
info	name of the column with information to display in a panel in the marker data frame.
infoFrame	Panel (right or left) where the information is to be displayed The left panel is only available if a description is provided with add_description.
start	name of the column with the start time of a period in the marker data frame.
end	name of the column with the end time of a period in the marker data frame.
period	name of the column with the period name in the marker data frame.
markerCluster	enable joining of nearby markers when zooming out.
roundedIcons	display markers with rounded borders.
jitteredPoints	add an amount of noise to markers to avoid overlapping.

Value

Object of class evolMap.

Author(s)

Modesto Escobar [e-mail], Department of Sociology and Communication, University of Salamanca, Carlos Prieto [e-mail], and David Barrios [e-mail], Bioinformatics Service, University of Salamanca.

Examples

# load data
data(sociologists)
data(locations)

# load pictures
sociologists$picture <- system.file("extdata", sociologists$picture,
  package="evolMap")

# join locations
sociologists$latitude <- locations[,1]
sociologists$longitude <- locations[,2]

# create map
map <- create_map()
map <- add_markers(map, sociologists,
  latitude = "latitude", longitude = "longitude",
  label = "label", image = "picture",
  start = "birth", end = "death")


# plot map
plot(map)

evolMap documentation built on March 31, 2023, 9:30 p.m.