我可以将index.html和ui.r用于我的r闪亮界面吗？

Question

在谈到这个就如何建立你的闪亮的应用程序完全在HTML,我想知道是否有任何方式使用结合这种方法与使用传统的ui.r方法.

原因:这种使用D3和R Shiny的方法似乎需要将所有D3代码放入index.html文件中.但我也想要一些交互性(selectInputs,dateRangeInputs,多个标签等).有什么建议？

Answer 1

您可以使用标签向您的帐户添加自定义HTML ui.R.

对于更复杂的输出,您可以在使用带ui.R和的应用程序时构建自定义闪亮输出server.R.此页面包含有关如何为任何代码执行此操作的信息.

这是使用您发布的D3示例中的javascript代码的示例.该应用程序只是生成绘图,我添加了一个selectInput位置,您可以选择它绘制的数据来显示事物如何集成.所有的javascript代码都是由mbostock完成的.(可以在这里找到).

我添加了闪亮的绑定部分并更改了几行以使其适应应用程序,我在上面对更改进行了评论,以便您可以跟踪它们.

ui.R

library(shiny)

shinyUI(
  fluidPage(singleton(tags$head(
    #adds the d3 library needed to draw the plot
    tags$script(src="http://d3js.org/d3.v3.min.js"),

    #the js script holding the code to make the custom output
    tags$script(src="HierarchicalEdgeBundling.js"),

    #the stylesheet, paste all that was between the <style> tags from your example in the graph_style.css file
    tags$link(rel = "stylesheet", type = "text/css", href = "graph_style.css")
  )),
    mainPanel(

      #this select input allows the user to choose json files in the www directory
      selectInput("data_files", "JSON files:" ,  as.matrix(list.files(path="www",pattern="json"))),

      #this div will hold the final graph
      div(id="graph", class="HierarchicalEdgeBundling")
    )        
  )
)

server.R

shinyServer(function(input, output, session) {

  #output to the graph div
  output$graph <- reactive({
    #get the selected file
    input$data_files
  })
})

HierarchicalEdgeBundling.js

//shiny output binding
var binding = new Shiny.OutputBinding();

binding.find = function(scope) {
        return $(scope).find(".HierarchicalEdgeBundling");
};



binding.renderValue = function(el, data) {
//empty the div so that it removes the graph when you change data
  $(el).empty()

if(data!=null){
  var diameter = 960,
      radius = diameter / 2,
      innerRadius = radius - 120;

  var cluster = d3.layout.cluster()
      .size([360, innerRadius])
      .sort(null)
      .value(function(d) { return d.size; });

  var bundle = d3.layout.bundle();

  var line = d3.svg.line.radial()
      .interpolate("bundle")
      .tension(.85)
      .radius(function(d) { return d.y; })
      .angle(function(d) { return d.x / 180 * Math.PI; });

  //select the div that has the same id as the el id 
  var svg = d3.select("#" + $(el).attr('id')).append("svg")
      .attr("width", diameter+300)
      .attr("height", diameter+300)
    .append("g")
      .attr("transform", "translate(" + radius + "," + radius + ")");

  var link = svg.append("g").selectAll(".link"),
      node = svg.append("g").selectAll(".node");

  //add the data from the user input
  d3.json(data, function(error, classes) {
    var nodes = cluster.nodes(packageHierarchy(classes)),
        links = packageImports(nodes);

    link = link
        .data(bundle(links))
      .enter().append("path")
        .each(function(d) { d.source = d[0], d.target = d[d.length - 1]; })
        .attr("class", "link")
        .attr("d", line);

    node = node
        .data(nodes.filter(function(n) { return !n.children; }))
      .enter().append("text")
        .attr("class", "node")
        .attr("dy", ".31em")
        .attr("transform", function(d) { return "rotate(" + (d.x - 90) + ")translate(" + (d.y + 8) + ",0)" + (d.x < 180 ? "" : "rotate(180)"); })
        .style("text-anchor", function(d) { return d.x < 180 ? "start" : "end"; })
        .text(function(d) { return d.key; })
        .on("mouseover", mouseovered)
        .on("mouseout", mouseouted);
  });

  function mouseovered(d) {
    node
        .each(function(n) { n.target = n.source = false; });

    link
        .classed("link--target", function(l) { if (l.target === d) return l.source.source = true; })
        .classed("link--source", function(l) { if (l.source === d) return l.target.target = true; })
      .filter(function(l) { return l.target === d || l.source === d; })
        .each(function() { this.parentNode.appendChild(this); });

    node
        .classed("node--target", function(n) { return n.target; })
        .classed("node--source", function(n) { return n.source; });
  }

  function mouseouted(d) {
    link
        .classed("link--target", false)
        .classed("link--source", false);

    node
        .classed("node--target", false)
        .classed("node--source", false);
  }

  d3.select(self.frameElement).style("height", diameter + "px");

  // Lazily construct the package hierarchy from class names.
  function packageHierarchy(classes) {
    var map = {};

    function find(name, data) {
      var node = map[name], i;
      if (!node) {
        node = map[name] = data || {name: name, children: []};
        if (name.length) {
          node.parent = find(name.substring(0, i = name.lastIndexOf(".")));
          node.parent.children.push(node);
          node.key = name.substring(i + 1);
        }
      }
      return node;
    }

    classes.forEach(function(d) {
      find(d.name, d);
    });

    return map[""];
  }

  // Return a list of imports for the given array of nodes.
  function packageImports(nodes) {
    var map = {},
        imports = [];

    // Compute a map from name to node.
    nodes.forEach(function(d) {
      map[d.name] = d;
    });

    // For each import, construct a link from the source to target node.
    nodes.forEach(function(d) {
      if (d.imports) d.imports.forEach(function(i) {
        imports.push({source: map[d.name], target: map[i]});
      });
    });

    return imports;
  }
}
};

//register the output binding
Shiny.outputBindings.register(binding, "HierarchicalEdgeBundling");

为了使应用程序工作,你需要创建一个www在同一目录文件夹作为ui.R和server.R,并把其中的HierarchicalEdgeBundling.js文件,发现CSS 这里的graph_style.css文件,和JSON数据文件(例如data1.json或data2.json).