R shiny 中的 networkD3 在 Chrome、Firefox 中无法正确显示，但在 Safari 中可以吗？

Question

这是应用程序代码：

require(shiny)
require(shinydashboard)
require(igraph)
require(networkD3)

ui = dashboardPage(
  dashboardHeader(title = "Test App"),
  dashboardSidebar(sidebarMenu(id = "tab",style = "position:fixed;",
                               menuItem("Networks", tabName = "nets", icon=icon("project-diagram"))
  )),
  dashboardBody(
    tags$script(HTML("$('body').addClass('fixed');")),
    tabItems(
      tabItem(tabName="nets", width=12,
              h2("Networks", align="center"),
              fluidRow(
                box(width = 12 ,title = "Network Display", status="info", solidHeader = TRUE, align="left",height="930px", collapsible=FALSE,
                    div(radioButtons(inputId = "RangeChoice",label = "Choose range of nodes:",
                                           choices = c("Few", "Some", "All"),selected = "Few"),style="display:center-align"),
                    forceNetworkOutput(outputId = "ptNetwork",height = "600px")) # box Network Display
              ) # fluidRow
      ) # tabItem nets
    ) # tabItems
  ) # dashboardBody
) # dashboardPage

server = function(input, output, session) {
  observeEvent(input$tab, {
    print(sprintf("%s tab is selected.", input$tab))
    if (input$tab == "nets") {
      # draw network
      output$ptNetwork=renderForceNetwork({
        x = matrix(rnorm(100*100), nrow=100, ncol=100)
        colnames(x) = 1:100
        ig = graph.adjacency(adjmatrix = x, mode="undirected", weighted=TRUE, add.colnames = list(attr="name"))
        mets=sample(V(ig)$name, 10)
        zmets=sample(V(ig)$name, 50)
        if ( input$RangeChoice == "Few"){
          e = delete.vertices(ig, v=V(ig)$name[-which(V(ig)$name %in% mets)])
          e = delete.vertices(e, V(e)[degree(e) == 0] )
        }else if(input$RangeChoice == "Some"){
          e = delete.vertices(ig, v=V(ig)$name[-which(V(ig)$name %in% zmets)])
          e = delete.vertices(e, V(e)[degree(e) == 0] )
        }else if(input$RangeChoice == "All"){
          e = ig
        }else{
          print("No Range Selected")
        }
        # assign groups and make ColourScale
        node_first = V(e)$name  %in% mets
        node_second = V(e)$name  %in% zmets
        node_both = node_first & node_second
        group=rep("Neither",length(V(e)$name))
        for (l in 1:length(V(e)$name)) {
          if (node_both[l]) { group[l] = "Both" } else if (node_first[l]) { group[l] = "First" } else if (node_second[l]) { group[l] = "Second" } else { group[l] = "Neither" }
        }
        names(group)=V(e)$name
        ColourScale <- 'd3.scaleOrdinal().domain(["First", "Second", "Both","Neither"]).range(["7554A3", "96C93C", "ECB602","#d3d3d3"]);'
        borderColor = rep("#d3d3d3",length(V(e)$name))
        #generate networkd3
        net_p=igraph_to_networkD3(e)
        net_p$nodes$group=sapply(as.character(net_p$nodes$name),function(x) group[x])
        net_p$nodes$nodesize=rep(1, length(net_p$nodes$name))
        linkColor_first=net_p$nodes$name[net_p$links$source+1] %in% mets & net_p$nodes$name[net_p$links$target+1] %in% mets
        linkColor_second=net_p$nodes$name[net_p$links$source+1] %in% zmets & net_p$nodes$name[net_p$links$target+1] %in% zmets
        linkColor_both = linkColor_first & linkColor_second
        linkColor = rep("lightgrey", length(linkColor_first))
        for (l in 1:length(linkColor)) {
          if (linkColor_both[l]) {
            linkColor[l] = "ECB602"
          } else if (linkColor_first[l]) {
            linkColor[l] = "7554A3"
          } else if (linkColor_second[l]) {
            linkColor[l] = "96C93C"
          } else {
            linkColor[l] = "lightgrey"
          }
        }
        net_p$links$color=linkColor
        
        ptNetwork=forceNetwork(Nodes = net_p$nodes, charge = -90, fontSize = 20, colourScale = JS(ColourScale),
                               Links = net_p$links,
                               linkColour = net_p$links$color,
                               Nodesize = 'nodesize',
                               Source = 'source', Target = 'target',NodeID = 'name',Group = 'group',Value = "value",zoom = T,
                               opacity = 0.9,
                               legend = T)
        ptNetwork
      })
    }  else {
      print("No tab selected")
    }
  })
}

shinyApp(ui, server)

这是推送到 shinyapps.io 的应用的 URL： https://lrthistlethwaite.shinyapps.io/Test-App/

如果您在 Chrome 或 Firefox 中查看，节点颜色、边缘无法正确显示。在 Safari 中，一切都完美无缺。请参阅下图了解它的外观。请注意，如果您运行 R 控制台本身的代码，则网络会在 R 查看器窗格中正确绘制，因此这是一个闪亮的 / Javascript 或 CSS 错误，而不是代码错误，大多数可能吗？

非常感谢任何帮助！

Answer 1

错误最终是为 ColourScale 和 linkColor 指定的所有十六进制都需要在十六进制代码之前有一个散列：

ColourScale <- 'd3.scaleOrdinal().domain(["First", "Second", "Both","Neither"]).range(["#7554A3", "#96C93C", "#ECB602","#d3d3d3"]);'

...
...
...

if (linkColor_both[l]) {
  linkColor[l] = "#ECB602"
} else if (linkColor_first[l]) {
  linkColor[l] = "#7554A3"
} else if (linkColor_second[l]) {
  linkColor[l] = "#96C93C"
} else {
  linkColor[l] = "lightgrey"
}

不确定为什么 Safari 接受没有散列的颜色，但 Chrome 和 Firefox 现在接受包含散列的节点颜色和边缘颜色。

R shiny 中的 networkD3 在 Chrome、Firefox 中无法正确显示，但在 Safari 中可以吗？

networkD3 in R shiny not displaying properly in Chrome, Firefox, but does in Safari?

javascript

css

r

shiny

networkd3