Google Charts has overlay functionality that allows you to put an image over a plot at a specified position. Is this possible in the googleVis
package or do I need to edit the chart html
ad hoc to include an overlay?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):
问题:
回答1:
You can add an overlay to a Google map using my googleway
package.
To use Google Maps you need a valid API key
library(googleway)
map_key <- 'your_api_key'
google_map(key = map_key) %>%
add_overlay(north = 40.773941,south = 40.712216, east = -74.12544, west = -74.22655,
overlay_url = "https://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg")