Initialize a Bokeh Google Map plot

Source: R/fig_gmap.R

Initialize a Bokeh Google Map plot

gmap(
  lat = 0,
  lng = 0,
  zoom = 0,
  api_key = NULL,
  map_type = "hybrid",
  map_style = NULL,
  width = 480,
  height = 480,
  title = NULL,
  xlab = NULL,
  ylab = NULL,
  xlim = NULL,
  ylim = NULL,
  padding_factor = 0.07,
  xgrid = FALSE,
  ygrid = FALSE,
  xaxes = FALSE,
  yaxes = FALSE,
  tools = c("pan", "wheel_zoom", "save"),
  theme = getOption("bokeh_theme")
)

Arguments

lat

latitude where the map should be centered
lng

longitude where the map should be centered
zoom

initial zoom level to use when displaying the map
api_key

Google Maps API key
map_type

map type to use for the plot - one of "hybrid", "satellite", "roadmap", "terrain"
map_style

a json string of a Google Maps style - see gmap_style
width

figure width in pixels
height

figure width in pixels
title

a title to display above the plot. - "title" is also the prefix for a set of Text Properties, so you can set the font for the title with the parameter text_font.
xlab

label for x axis
ylab

label for y axis
xlim

the extent of the plotting area in the x-dimension (will be computed automatically if not specified).
ylim

the extent of the plotting area in the y-dimension (will be computed automatically if not specified).
padding_factor

if limits are not specified, by what factor should the extents of the data be padded
xgrid

whether to draw x axis grid lines
ygrid

whether to draw y axis grid lines
xaxes

where to put x axis, or FALSE if no x axis ticks / labels
yaxes

where to put y axis, or FALSE if no y axis ticks / labels
tools

character vector of interactivity tools options (acceptable values are: "pan", "wheel_zoom", "box_zoom", "resize", "crosshair", "box_select", "lasso_select", "reset", "save", "help"). Additionally, tool functions can be called on a figure to specify more control - see the "See Also" section below for a list of tool functions. If NULL, the toolbar will not be drawn. If "" the toolbar will be drawn but no tools will be added by default.
theme

an rbokeh theme to use

Note

This can be used in the same way as figure, adding layers on top of the Google Map. There is an open issue documenting points appearing to sometimes be a few pixels off from their intended location. Google has its own terms of service for using Google Maps API and any use of rbokeh with Google Maps must be within Google's Terms of Service

See also

gmap_style

Examples

# \donttest{
# custom map style
gmap(lat = 40.74, lng = -73.95, zoom = 11,
  width = 600, height = 600,
  map_style = gmap_style("blue_water"))
# }
if (FALSE) {
gmap(title = "NYC taxi pickups January 2013",
  lat = 40.74, lng = -73.95, zoom = 11,
  map_type = "roadmap", width = 1000, height = 800) %>%
  ly_hexbin(nyctaxihex, alpha = 0.5,
    palette = "Spectral10", trans = log, inv = exp)
}