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Javascript 在d3.js热图中绘制节点-需要指导_Javascript_D3.js_Nodes_Heatmap_Svg.js - Fatal编程技术网

Javascript 在d3.js热图中绘制节点-需要指导

Javascript 在d3.js热图中绘制节点-需要指导,javascript,d3.js,nodes,heatmap,svg.js,Javascript,D3.js,Nodes,Heatmap,Svg.js,我是d3.js实现的新手。需要帮助d3.js热图吗 我有一个要求: 显示每个记录之间差异的热图。根据记录严重性和概率类型: 所需图像: 数据: 在上面的输出图片中,您可以看到圆圈: 假设这些记录显示在图形上。 注释“//添加点或圆”后开始的代码。 记录数据示例: { "group":"Likely", "variable":"Significant", "value":79, "reco

我是d3.js实现的新手。需要帮助d3.js热图吗

我有一个要求: 显示每个记录之间差异的热图。根据记录严重性和概率类型:

所需图像: 数据: 在上面的输出图片中,您可以看到圆圈:

假设这些记录显示在图形上。 注释“//添加点或圆”后开始的代码。 记录数据示例:

{
"group":"Likely",
"variable":"Significant",
"value":79,
"record":"Retention of environmental safety records",
"color":"red"
}
这些记录的数据以可变的“点”表示,您可以在下面的代码中找到。我有三张唱片。但有两个圆圈重叠。 我做过热图设计。 合并:

热图: 连接散点图: 目前,我刚刚更新了数据:

我有两个问题:

  • 重叠点问题
  • 更新到svg后不显示工具提示
  • 详细信息:

    1。重叠点问题 这些记录的数据以可变的“点”表示,您可以在下面的代码中找到。我有三张唱片。但有两个圆圈重叠

    期望的输出是这样的:圆圈不应该重叠

    如果两条记录的数据相同,则应显示两条记录。我需要帮助来实现这一点。如有任何建议,我们将不胜感激

    **二,。工具提示问题:**

    我之前对工具提示有一个问题(它正在使用div标记),如下所示: 由于某些要求,我不得不在Html中使用svg标记,而不是Div标记。因为这必须在Salesforce的Lwc中实现

    Html从div更新为Svg,如下所示:

    更新后,, 除工具提示部分外,整个热图都在工作。 将工具提示部分更新为Svg,如下所示: 现在工具提示不起作用

    代码:

     <!-- Code from d3-graph-gallery.com -->
        <!DOCTYPE html>
        <meta charset="utf-8">
        
        <!-- Load d3.js -->
        <script src="https://d3js.org/d3.v5.js"></script>
        
        <!-- Create a div where the graph will take place -->
        <div id="my_dataviz">
     <svg
                    class="d3"
                    width={svgWidth}
                    height={svgHeight}
                    lwc:dom="manual"
                ></svg></div>
        
        <!-- Load color palettes -->
        
        
        <script>
        
        // set the dimensions and margins of the graph
        var margin = {top: 80, right: 25, bottom: 30, left: 100},
        width = 550 - margin.left - margin.right,
        height = 450 - margin.top - margin.bottom;
        
        // append the svg object to the body of the page
        var svg = d3.select(this.template.querySelector('svg.d3'))
        .append("svg")
          .attr("width", width + margin.left + margin.right)
          .attr("height", height + margin.top + margin.bottom)
        .append("g")
          .attr("transform",
                "translate(" + margin.left + "," + margin.top + ")");
        
        //Read the data
        var data = [{"group":"Rare","variable":"Insignificant","value":45,"color":"purple"},{"group":"Rare","variable":"Minimal","value":95,"color":"purple"},{"group":"Rare","variable":"Moderate","value":22,"color":"green"},{"group":"Rare","variable":"Significant","value":14,"color":"green"},{"group":"Rare","variable":"Catastrophic","value":59,"color":"yellow"},{"group":"Unlikely","variable":"Minimal","value":37,"color":"purple"},{"group":"Unlikely","variable":"Insignificant","value":37,"color":"purple"},{"group":"Unlikely","variable":"Moderate","value":81,"color":"green"},{"group":"Unlikely","variable":"Significant","value":79,"color":"yellow"},{"group":"Unlikely","variable":"Catastrophic","value":84,"color":"orange"},{"group":"Probable","variable":"Insignificant","value":96,"color":"purple"},{"group":"Probable","variable":"Minimal","value":37,"color":"green"},{"group":"Probable","variable":"Moderate","value":98,"color":"yellow"},{"group":"Probable","variable":"Significant","value":10,"color":"orange"},{"group":"Probable","variable":"Catastrophic","value":86,"color":"red"},{"group":"Likely","variable":"Insignificant","value":75,"color":"green"},{"group":"Likely","variable":"Minimal","value":18,"color":"yellow"},{"group":"Likely","variable":"Moderate","value":92,"color":"orange"},{"group":"Likely","variable":"Significant","value":43,"color":"red"},{"group":"Likely","variable":"Catastrophic","value":16,"color":"red"},{"group":"Almost Certain","variable":"Insignificant","value":44,"color":"green"},{"group":"Almost Certain","variable":"Minimal","value":29,"color":"yellow"},{"group":"Almost Certain","variable":"Moderate","value":58,"color":"orange"},{"group":"Almost Certain","variable":"Significant","value":55,"color":"red"},{"group":"Almost Certain","variable":"Catastrophic","value":65,"color":"red"}]; // Labels of row and columns -> unique identifier of the column called 'group' and 'variable'
          var myGroups = d3.map(data, function(d){return d.group;}).keys()
          var myVars = d3.map(data, function(d){return d.variable;}).keys()
        
          // Build X scales and axis:
          var x = d3.scaleBand()
            .range([ 0, width ])
            .domain(myGroups)
            .padding(0.05);
          svg.append("g")
            .style("font-size", 15)
            .attr("transform", "translate(0," + height + ")")
            .call(d3.axisBottom(x).tickSize(0))
            .select(".domain").remove()
        
          // Build Y scales and axis:
          var y = d3.scaleBand()
            .range([ height, 0 ])
            .domain(myVars)
            .padding(0.05);
          svg.append("g")
            .style("font-size", 15)
            .call(d3.axisLeft(y).tickSize(0))
            .select(".domain").remove()
        
          // Build color scale
          var myColor = d3.scaleSequential()
            .interpolator(d3.interpolateInferno)
            .domain([1,100])
        
          // create a tooltip
          var tooltip = d3.select("#my_dataviz")
            .append("div")
            .style("opacity", 0)
            .attr("class", "tooltip")
            .style("background-color", "white")
            .style("border", "solid")
            .style("border-width", "2px")
            .style("border-radius", "5px")
            .style("padding", "5px")
            .style("position","fixed")
        
          // Three function that change the tooltip when user hover / move / leave a cell
          var mouseover = function(d) {
            tooltip
              .style("opacity", 1)
            d3.select(this)
              .style("stroke", "black")
              .style("opacity", 1)
          }
          var mousemove = function(d) {
            tooltip
              .html("The exact value of<br>this cell is: " + d.value)
              .style("left", (d3.mouse(this)[0]+70) + "px")
              .style("top", (d3.mouse(this)[1]) + "px")
          }
          var mouseleave = function(d) {
            tooltip
              .style("opacity", 0)
            d3.select(this)
              .style("stroke", "none")
              .style("opacity", 0.8)
          }
        
          // add the squares
          svg.selectAll()
            .data(data, function(d) {return d.group+':'+d.variable;})
            .enter()
            .append("rect")
              .attr("x", function(d) { return x(d.group) })
              .attr("y", function(d) { return y(d.variable) })
              .attr("rx", 4)
              .attr("ry", 4)
              .attr("width", x.bandwidth() )
              .attr("height", y.bandwidth() )
              .style("fill", function(d) { return d.color } )
              .style("stroke-width", 4)
              .style("stroke", "none")
              .style("opacity", 0.8)
            .on("mouseover", mouseover)
            .on("mousemove", mousemove)
            .on("mouseleave", mouseleave)
            
          // Three function that change the tooltip when user hover / move / leave a cell
          var mouseover1 = function(d) {
            tooltip
              .style("opacity", 1)
            d3.select(this)
              .style("stroke", "black")
              .style("opacity", 1)
          }
          var mousemove1 = function(d) {
            tooltip
              .html("4. " + d.record)
              .style("left", (d3.mouse(this)[0]+90) + "px")
              .style("top", (d3.mouse(this)[1]) + "px")
          }
          var mouseleave1 = function(d) {
            tooltip
              .style("opacity", 0)
            d3.select(this)
              .style("stroke", "none")
              .style("opacity", 0.8)
          }
          
          //Add dots or circles     
            var dots = 
        [{"group":"Likely","variable":"Significant","value":79,"record":"Retention of environmental safety records","color":"red"},
        {"group":"Unlikely","variable":"Minimal","value":84,"record":"Risk of Fines from European Union GDPR due to data breach","color":"orange"},
        {"group":"Unlikely","variable":"Minimal","value":84,"record":"Risk Management Case record","color":"green"}];
             // Add the points
            svg
              .append("g")
              .selectAll("dot")
              .data(dots)
              .enter()
              .append("circle")
                .attr("class", "myCircle")
                .attr("cx", function(d) { return x(d.group) + x.bandwidth()/2 } )
                .attr("cy", function(d) { return y(d.variable)+ y.bandwidth()/2 } )
                .attr("r", 8)
                .attr("stroke", "#69b3a2")
                .attr("stroke-width", 3)
                .attr("fill", function(d) { return d.color })
                .on("mouseover", mouseover1)
                .on("mousemove", mousemove1)
                .on("mouseleave", mouseleave1)   
        //})
        
        
        // Add title to graph
        svg.append("text")
                .attr("x", 0)
                .attr("y", -50)
                .attr("text-anchor", "left")
                .style("font-size", "22px")
                .text("A  heatmap");
        
        // Add subtitle to graph
        svg.append("text")
                .attr("x", 0)
                .attr("y", -20)
                .attr("text-anchor", "left")
                .style("font-size", "14px")
                .style("fill", "grey")
                .style("max-width", 400)
                .text("A short description of the take-away message of this chart.");
        
        
        </script>
    
    
    //设置图形的尺寸和边距
    var margin={顶部:80,右侧:25,底部:30,左侧:100},
    宽度=550-margin.left-margin.right,
    高度=450-边距.顶部-边距.底部;
    //将svg对象附加到页面主体
    var svg=d3.select(this.template.querySelector('svg.d3'))
    .append(“svg”)
    .attr(“宽度”,宽度+边距。左侧+边距。右侧)
    .attr(“高度”,高度+边距。顶部+边距。底部)
    .附加(“g”)
    .attr(“转换”,
    “翻译(“+margin.left+”,“+margin.top+”);
    //读取数据
    var数据=[{“组”:“稀有”,“变量”:“无意义”,“值”:45,“颜色”:“紫色”},{“组”:“稀有”,“变量”:“最小”,“值”:95,“颜色”:“紫色”},{“组”:“稀有”,“变量”:“中等”,“值”:22,“颜色”:“绿色”},{“组”:“稀有”,“变量”:“有意义”,“值”:14,“颜色”:“绿色”},{“组”:“稀有”,“变量”:“灾难性”,“值”:59,“颜色”:“黄色”},{“组”:“不太可能”、“变量”:“最小”、“值”:37,“颜色”:“紫色”},{“组”:“不可能”、“变量”:“不重要”、“值”:37,“颜色”:“紫色”},{“组”:“不太可能”、“变量”:“中等”、“值”:81,“颜色”:“绿色”},{“组”:“不太可能”、“变量”:“显著”、“值”:79,“颜色”:“黄色”},{“组”:“不太可能”、“变量”:“灾难性”值:84,“颜色”:“橙色”},{“组”:“可能的”、“变量”:“不重要的”、“值”:96,“颜色”:“紫色”},{“组”:“可能的”、“变量”:“最小的”、“值”:37,“颜色”:“绿色”},{“组”:“可能的”、“变量”:“中等的”、“值”:98,“颜色”:“黄色”},{“组”:“可能的”、“变量”:“重要的”、“值”:10,“颜色”:“橙色”},{“组”:“可能的”、“变量”:灾难性“,”值“:”86,“颜色“,”红色“,”组“,”可能“,”变量“,”不重要“,”值“,”75,“颜色“,”组“,”可能“,”变量“,”最小“,”值“,”18,“颜色“,”黄色“,”组“,”可能“,”变量“,”橙色“,”组“,”可能“,”变量“,”重要“,”值“,”43,“颜色“,”红色“,”组“,”可能“,”变量“:”灾难性“,”值“:”16,“颜色“:”红色“,”组“:”几乎肯定“,”变量“,”无关紧要“,”值“:”44,“颜色“,”绿色“,”组“,”几乎肯定“,”变量“,”最小“,”值“,”29,“颜色“,”黄色“,”组“,”几乎肯定“,”变量“,”显著“,”值“,”55,“颜色“:”红色“}”,{“组”:“几乎确定”,“变量”:“灾难”,“值”:65,“颜色”:“红色”}];//行和列的标签->名为“组”和“变量”的列的唯一标识符
    var myGroups=d3.map(数据,函数(d){return d.group;}).keys()
    var myVars=d3.map(数据,函数(d){return d.variable;}).keys()
    //构建X比例和轴:
    var x=d3.scaleBand()
    .范围([0,宽度])
    .域(myGroups)
    .填充(0.05);
    svg.append(“g”)
    .style(“字体大小”,15)
    .attr(“变换”、“平移(0)”、“高度+”)
    .call(d3.axisBottom(x.tickSize(0))
    .select(“.domain”).remove()
    //构建Y比例和轴:
    变量y=d3.scaleBand()
    .范围([高度,0])
    .domain(myVars)
    .填充(0.05);
    svg.append(“g”)
    .style(“字体大小”,15)
    .call(d3.axisLeft(y.tickSize(0))
    .select(“.domain”).remove()
    //建立色标
    var myColor=d3.scaleSequential()
    .内插器(d3.内插inferno)
    .domain([1100])
    //创建工具提示
    var tooltip=d3。选择(“我的数据维”)
    .附加(“div”)
    .style(“不透明度”,0)
    .attr(“类”、“工具提示”)
    .style(“背景色”、“白色”)
    .style(“边框”、“实体”)
    .style(“边框宽度”、“2px”)
    .样式(“边框半径”、“5px”)
    .style(“填充”、“5px”)
    .样式(“位置”、“固定”)
    //三个函数,用于在用户悬停/移动/离开单元格时更改工具提示
    var mouseover=函数(d){
    工具提示
    .style(“不透明度”,1)
    d3.选择(本)
    .style(“笔划”、“黑色”)
    .style(“不透明度”,1)
    }
    
    .style("position","fixed")
    
    .attr("cx", function(d) { return x(d.group) + x.bandwidth()/2 } )