在Shiny for R中设置Dygraph的交互模型 [英] Setting the interaction model of a Dygraph in Shiny for R
问题描述
我希望添加在 http://dygraphs.com/gallery/#上看到的自定义交互g/interaction (位于自定义交互模型"下)进入我的Shiny Web应用程序.
I am looking to add the custom interaction seen at http://dygraphs.com/gallery/#g/interaction under "Custom interaction model" into my Shiny web app.
据我了解，这需要在页面上附加一些JS并在图形上设置交互模型:
As far as I understand it, this requires attaching some JS to the page and setting the interaction model on the graph:
interactionModel : {
'mousedown' : downV3,
'mousemove' : moveV3,
'mouseup' : upV3,
'click' : clickV3,
'dblclick' : dblClickV3,
'mousewheel' : scrollV3
}
interactionModel : {
'mousedown' : downV3,
'mousemove' : moveV3,
'mouseup' : upV3,
'click' : clickV3,
'dblclick' : dblClickV3,
'mousewheel' : scrollV3
}
但是，在R侧的dyOptions函数中，似乎没有将interactionModel列为参数.
However, interactionModel does not seem to be listed as a parameter in the dyOptions function on the R side.
是否可以解决此问题?
更新:
查看dyOptions的来源，似乎可以直接修改选项:
Looking at the source for dyOptions, it seems that options can be modified directly:
g <- dyGraph(series)
g$x$attr$option <- "Value"
但是，在此处设置interactionModel似乎无效.
However, setting the interactionModel here does not seem to work.
请参阅: https://github.com/rstudio/dygraphs/blob/master/R/options.R
更新:
您确实可以使用以下选项设置选项:
You can indeed set the options using:
g$x$attrs$option <- "Value" # Note that it is "attrs", not "attr"
这可用于关闭交互模式:
This can be used to switch off the interaction mode:
graph$x$attrs$interactionModel <- "{}"
剩下的问题是通过JSON将JS函数引用传递给页面.
The remaining problem is passing JS function references via JSON to the page.
推荐答案
您可以使用JS函数通过JSON将JavaScript传递给客户端.
You can use the JS function to pass JavaScript over JSON to the client.
在ui.R中:
tags$head(tags$script(src="interaction.js"))
在server.R中:
In server.R:
g <- dygraph(series(), main = "Graph", xlab = "Date", ylab = "Amount") %>%
dySeries(label = "X")
g$x$attrs$interactionModel <- list(
mousedown = JS("downV3"),
mousemove = JS("moveV3"),
mouseup = JS("upV3"),
click = JS("clickV3"),
dblclick = JS("dblClickV3"),
mousewheel = JS("scrollV3"))
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