我想在highcharter
弹出窗口中包含leaflet
图。在this帖子的帮助下,Iam可以包含sparkline
图表。但是,由于我缺乏html技能,因此我不知道如何修改代码以与highcharter
一起使用。 This answer on SO(example from answer)正是我想要的。我只是不知道如何在R
中实施。
library(leaflet)
library(tidyverse)
library(htmlwidgets)
library(htmltools)
library(sparkline)
library(highcharter)
# Step 1 convert htmlwidget to character representation of HTML components
as.character.htmlwidget <- function(x, ...) {
htmltools::HTML(
htmltools:::as.character.shiny.tag.list(
htmlwidgets:::as.tags.htmlwidget(
x
),
...
)
)
}
add_deps <- function(dtbl, name, pkg = name) {
tagList(
dtbl,
htmlwidgets::getDependency(name, pkg)
)
}
这很好用:
leaflet() %>%
addTiles() %>%
addCircleMarkers(lat = 45.4, lng = 14.9,
popup = list(paste(as.character(sparkline(1:19))))) %>%
onRender(
"
function(el,x) {
this.on('popupopen', function() {HTMLWidgets.staticRender();})
}
") %>%
add_deps("sparkline") %>%
browsable()
不幸的是,它不仅将add_deps
更改为highcharter
leaflet() %>%
addTiles() %>%
addCircleMarkers(lat = 45.4, lng = 14.9,
popup = list(paste(as.character(
hchart(data.frame(x = 1:10, y = 1:10), type = "line", hcaes(x = x, y = y)) %>% hc_size(width = 300, height = 200)
))),
popupOptions = popupOptions(minWidth = 300, maxHeight = 200)) %>%
onRender(
"
function(el,x) {
this.on('popupopen', function() {HTMLWidgets.staticRender();})
}
") %>%
add_deps("highcharter") %>%
browsable()
我曾尝试修改'popupopen'函数,但未成功。
leaflet() %>%
addTiles() %>%
addCircleMarkers(lat = 45.4, lng = 14.9,
popup = list(paste(as.character(
hchart(data.frame(x = 1:10, y = 1:10), type = "line", hcaes(x = x, y = y)) %>% hc_size(width = 300, height = 200)
))),
popupOptions = popupOptions(minWidth = 300, maxHeight = 200)) %>%
onRender(
"
function(el,x) {
this.on('popupopen', function() {HTMLWidgets.staticRender();})
}
") %>%
add_deps("highchart", 'highcharter') %>%
browsable()
这是由于add_deps
功能:
add_deps <- function(dtbl, name, pkg = name) {
tagList(
dtbl,
htmlwidgets::getDependency(name, pkg)
)
}
如您所见,它在内部使用htmlwidgets::getDependency
。如果我们尝试使用leaflet
包:
library(htmlwidgets)
getDependency('leaflet')[1:3]
#> [[1]]
#> List of 10
#> $ name : chr "htmlwidgets"
#> $ version : chr "1.5.1"
#> $ src :List of 1
#> ..$ file: chr "/home/malditobarbudo/R/x86_64-pc-linux-gnu-library/3.6/htmlwidgets/www"
#> $ meta : NULL
#> $ script : chr "htmlwidgets.js"
#> $ stylesheet: NULL
#> $ head : NULL
#> $ attachment: NULL
#> $ package : NULL
#> $ all_files : logi TRUE
#> - attr(*, "class")= chr "html_dependency"
#>
#> [[2]]
#> List of 10
#> $ name : chr "jquery"
#> $ version : chr "1.12.4"
#> $ src :List of 1
#> ..$ file: chr "/home/malditobarbudo/R/x86_64-pc-linux-gnu-library/3.6/leaflet/htmlwidgets/lib/jquery"
#> $ meta : NULL
#> $ script : chr "jquery.min.js"
#> $ stylesheet: NULL
#> $ head : NULL
#> $ attachment: NULL
#> $ package : NULL
#> $ all_files : logi TRUE
#> - attr(*, "class")= chr "html_dependency"
#>
#> [[3]]
#> List of 10
#> $ name : chr "leaflet"
#> $ version : chr "1.3.1"
#> $ src :List of 1
#> ..$ file: chr "/home/malditobarbudo/R/x86_64-pc-linux-gnu-library/3.6/leaflet/htmlwidgets/lib/leaflet"
#> $ meta : NULL
#> $ script : chr "leaflet.js"
#> $ stylesheet: chr "leaflet.css"
#> $ head : NULL
#> $ attachment: NULL
#> $ package : NULL
#> $ all_files : logi TRUE
#> - attr(*, "class")= chr "html_dependency"
由reprex package(v0.3.0)在2019-12-05创建
我们可以看到它返回了leaflet
js依赖项列表(截断为前三个)。如果我们对highcharter
尝试相同的操作,它将不返回任何依赖关系(除了强制性的htmlwidgets依赖关系之外)
library(htmlwidgets)
getDependency('highcharter')
#> [[1]]
#> List of 10
#> $ name : chr "htmlwidgets"
#> $ version : chr "1.5.1"
#> $ src :List of 1
#> ..$ file: chr "/home/malditobarbudo/R/x86_64-pc-linux-gnu-library/3.6/htmlwidgets/www"
#> $ meta : NULL
#> $ script : chr "htmlwidgets.js"
#> $ stylesheet: NULL
#> $ head : NULL
#> $ attachment: NULL
#> $ package : NULL
#> $ all_files : logi TRUE
#> - attr(*, "class")= chr "html_dependency"
#>
#> [[2]]
#> NULL
由reprex package(v0.3.0)在2019-12-05创建
这是因为highcharter
是R软件包名称,而不是js库名称。您可以看list.files(system.file('htmlwidgets', package = 'highcharter'))
看到该库被称为highchart,因此在此使用正确的名称位:
{...} %>%
add_deps("highchart", 'highcharter') %>%
{...}
将解决问题;)