D3.js 的氣泡demo

時間 2019-11-19
原文原文鏈接
d3.js 的cdn地址
<script src="https://cdn.bootcss.com/d3/5.9.2/d3.js"></script>
<script src="https://cdn.bootcss.com/d3/5.9.2/d3.min.js"></script> 

<body>
    <svg width="960" height="960" font-family="sans-serif" font-size="14" text-anchor="middle" style="border: 1px solid red;"></svg>
</body>
<script>
    console.log(d3) ;
    console.log(d3.version);
    var data_1 = [
        {"name":"自動化運維1","count":50 ,"color_type":"1"},   
        {"name":"自動化運維1","count":100,"color_type":"2"},
        {"name":"自動化運維1","count":150,"color_type":"3"},
        {"name":"自動化運維1","count":50 ,"color_type":"1"},  
        {"name":"自動化運維1","count":100,"color_type":"2"},
        {"name":"自動化運維1","count":150,"color_type":"3"},  //這裏的三種顏色類型，對應三個徑向漸變對象
    ]
    function initCircle(data){
       //清空做圖區域
       d3.select("svg").selectAll("g").remove();
       //給svg對象賦寬高的屬性
       var svg = d3.select("svg"),
           width = +svg.attr("width"),
           height = +svg.attr("height");
       var format = d3.format(",d");
      //var color = d3.scaleOrdinal(d3.schemeCategory20c);
      // var color = ["#CCFF00","#FF0033","#336699","#33FF66","#669966","#66CCFF","#99CCFF","#CCCCCC"];//自定義顏色
       var pack = d3.pack()
               .size([width, height])
               .padding(5);
       var num,pid;
        var root = d3.hierarchy({children: data})
                .sum(function(d) { return d.count; })
                .each(function(d) {
                   if(d.parent == null) {num = d.value};
                   if (id = d.data.name){
                       var id
                       d.id = id;
                       d.class = id;
                       pid = num/(d.value);
                       d.colorPick = pid>100?5:(pid>50?4:(pid>10?3:(pid>2?2:1)));
                       console.log(d.colorPick);
                   }
               });
           var node = svg.selectAll(".node")
                   .data(pack(root).leaves())
                   .enter().append("g")
                   .attr("class", "nodeddd")
                   .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
           node.append("circle")
                   .attr("id", function(d) { return d.id; })
                   .attr("r", function(d) { 
                        console.log(d);
                       return d.r; })
                   .style("fill",function(d){
                       if(d.data.color_type == "1"){
                            //定義一個id爲radialGradient_green的徑向漸變對象 d3.js 還有一個線性漸變對象，用法相似。。
                            var defs = svg.append("defs");  
                            var a = d3.rgb(10,15,56,0);
                            var b = d3.rgb(255,104,0,1);    //綠色

                            // var a = d3.rgb(0,255,0,0);
                            // var b = d3.rgb(0,255,0,1);   //綠色
                            var radialGradient_green = defs.append("radialGradient")
                                                .attr("id","radialGradient_green")
                                                .attr("x1","0%")
                                                .attr("y1","0%")
                                                .attr("x2","0%")
                                                .attr("y2","0%");
                            var stop1 = radialGradient_green.append("stop")
                                        .attr("offset","0%")
                                        .style("stop-color",a.toString());
                        
                            var stop2 = radialGradient_green.append("stop")
                            .attr("offset","100%")
                            .style("stop-color",b.toString());
                            return "url(#" + radialGradient_green.attr("id") + ")" ;
                       }
                       else if(d.data.color_type == "2"){
                              //定義一個id爲radialGradient_green的徑向漸變對象
                            var defs = svg.append("defs");  
                            var a = d3.rgb(10,15,56,0);
                            var b = d3.rgb(255,255,0,1);    //綠色

                            // var a = d3.rgb(0,255,0,0);
                            // var b = d3.rgb(0,255,0,1);   //綠色
                            var radialGradient_red = defs.append("radialGradient")
                                                .attr("id","radialGradient_red")
                                                .attr("x1","0%")
                                                .attr("y1","0%")
                                                .attr("x2","0%")
                                                .attr("y2","0%");
                            var stop1 = radialGradient_red.append("stop")
                                        .attr("offset","0%")
                                        .style("stop-color",a.toString());
                        
                            var stop2 = radialGradient_red.append("stop")
                            .attr("offset","100%")
                            .style("stop-color",b.toString());
                            return "url(#" + radialGradient_red.attr("id") + ")" ;
                       }
                       else if(d.data.color_type == "3"){
                              //定義一個id爲radialGradient_green的徑向漸變對象
                            var defs = svg.append("defs");  
                            var a = d3.rgb(10,15,56,0);
                            var b = d3.rgb(128,216,133,1);  //綠色

                            // var a = d3.rgb(0,255,0,0);
                            // var b = d3.rgb(0,255,0,1);   //綠色
                            var radialGradient_blue = defs.append("radialGradient")
                                                .attr("id","radialGradient_blue")
                                                .attr("x1","0%")
                                                .attr("y1","0%")
                                                .attr("x2","0%")
                                                .attr("y2","0%");
                            var stop1 = radialGradient_blue.append("stop")
                                        .attr("offset","0%")
                                        .style("stop-color",a.toString());
                        
                            var stop2 = radialGradient_blue.append("stop")
                            .attr("offset","100%")
                            .style("stop-color",b.toString());
                            return "url(#" + radialGradient_blue.attr("id") + ")" ;
                       }
                       });
                   //function(d) { return color[d.colorPick];}
                   //"url(#" + linearGradient.attr("linearColor") + ")"
           node.append("clipPath")
                   .attr("id", function(d) { return "clip-" + d.id; })
                   .append("use")
                   .attr("xlink:href", function(d) { return "#" + d.id; });
            
           node.append("text")
                   .attr("clip-path", function(d) { return "url(#clip-" + d.id + ")"; })
                   .selectAll("tspan")
                   .data(function(d){
                       var arr = new Array();
                       arr.push(d.class);
                       arr.push(d.data.count);
                       return arr;//圓內顯示內容
                   })
                   .enter().append("tspan")
                   .attr("x", 0)
                   .attr("y", function(d, i, nodes) { return 25 + (i - nodes.length / 2 - 0.5) * 20; })
                   .text(function(d) { return d; })
                   .style("fill","#FFF");

            node.append("title")
                   .text(function(d) { return d.id + "\n" + format(d.value); });
            node.on("click",function(d){
               // clickBubble(d.id);//自定義點擊事件
            })
   }
   initCircle(data_1);
</script>
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