Javascript 如何使用d3plus.TextBox()模块进行SVG换行和自动字体大小缩放(在D3.js层次结构树上)

Javascript 如何使用d3plus.TextBox()模块进行SVG换行和自动字体大小缩放(在D3.js层次结构树上),javascript,d3.js,d3plus,Javascript,D3.js,D3plus,我正在尝试使用d3plus文本的文本框模块进行SVG文本框换行和自动字体大小缩放。我在这里遵循使用说明 更新根目录树后,我正在使用类似于这样的功能(如github中推荐的): new d3plus.TextBox() .data(d3.select("text#rectResize")) .fontSize(16) .width(200) .x(function(d, i) { return i * 250; })

我正在尝试使用d3plus文本的文本框模块进行SVG文本框换行和自动字体大小缩放。我在这里遵循使用说明

更新根目录树后,我正在使用类似于这样的功能(如github中推荐的):

    new d3plus.TextBox()
      .data(d3.select("text#rectResize"))
      .fontSize(16)
      .width(200)
      .x(function(d, i) { return i * 250; })
      .render();
        
但我遇到以下错误消息的问题:

d3plus-text.v0.10.full.min.js:7 Uncaught (in promise) TypeError: this._data.reduce is not a function
at i.a (d3plus-text.v0.10.full.min.js:7)
at test6.html:86
我到处寻找,但还是没能成功。在此方面的任何帮助都将不胜感激

PS:我知道我可以使用MikeBoostics包装功能,你可以看到我在下面的代码中使用了一些编辑,它可以工作。但我仍然想学习如何使用d3plus.TextBox,因为它看起来更优雅,并且提供了额外的功能

下面是我脚本的较短版本。你可以摆弄它


.节点圆{
填充:#FFF;
行程:#009BE4;
笔画宽度:2px;
}
.节点文本{
字体:12px无衬线;
}
.链接{
填充:无;
行程:555;
笔画宽度:2px;
笔划不透明度:0.3;
}
常数circleSize=8
//设置图表的尺寸和边距
var margin={顶部:20,右侧:90,底部:30,左侧:90},
宽度=900-边距。左侧-边距。右侧,
高度=900-边距.顶部-边距.底部;
//声明树布局并指定大小
var treemap=d3.tree().size([height,width]);
//加载外部数据
var flatData=[
{“name”:“这是一个非常长的顶级名称”,“parent”:null},
{“名称”:“这是一个很长的2A级名称”,“父级”:“这是一个很长的顶级名称”},
{“名称”:“这是一个非常长的2B级名称”,“父级”:“这是一个非常长的顶级名称”},
{“名字”:“这是一个非常长的名字,代表一个孩子”,“父母”:“这是一个非常长的名字,代表2A级”},
{“名字”:“这是一个非常长的名字,代表一个”,“父母”:“这是一个非常长的名字,代表2A级”}
];
//正确分配空值
flatData.forEach(函数(d){
如果(d.parent==“null”){d.parent=null};
}); 
//将平面数据转换为层次结构
var treeData=d3.stratify()
.id(函数(d){返回d.name;})
.parentId(函数(d){返回d.parent;})
(平面数据);
//为每个节点指定名称
treeData.每个(功能(d){
d、 name=d.data.name;
}); 
//将svg对象附加到页面主体
//将“组”元素附加到“svg”
//将“组”元素移动到左上角
var svg=d3.选择(“正文”).追加(“svg”)
.attr(“宽度”,宽度+边距。右侧+边距。左侧)
.attr(“高度”,高度+边距。顶部+边距。底部)
.附加(“g”)
.attr(“转换”、“转换”
+margin.left+”,“+margin.top+”);
var i=0,
持续时间=500,
根;
//指定父对象、子对象、高度和深度
root=d3.hierarchy(treeData,函数(d){返回d.children;});
root.x0=高度/2;
root.y0=0;
//在第二层之后崩溃
根。子。forEach(塌陷);
更新(根);
新的d3plus.TextBox()
.数据(d3.选择(“文本#矩形调整”))
.fontSize(16)
.宽度(200)
.x(函数(d,i){返回i*250;})
.render();
//换行文字-不是优雅的换行文字方式
函数wrap2(文本、宽度){
text.each(函数(){
变量文本=d3。选择(此),
//words=text.text().split(/\s+/).reverse(),为了防止剪切非中断空格,替换为下面的
words=text.text().split(/[\f\n\r\t\v]+/).reverse(),
单词
行=[],
行号=0,
线宽=1.2,//ems
y=text.attr(“y”),
x=text.attr(“x”),
dy=parseFloat(text.attr(“dy”)),
tspan=text.text(null).append(“tspan”).attr(“x”,x).attr(“y”,y).attr(“dy”,dy+“em”);
while(word=words.pop()){
行。推(字);
tspan.text(line.join(“”));
if(tspan.node().getComputedTextLength()>width){
line.pop();
tspan.text(line.join(“”));
行=[字];
tspan=text.append(“tspan”).attr(“x”,x).attr(“y”,y).attr(“dy”,lineHeight+“em”).text(word);
}
}
//找到相应的rect和reszie
d3.选择(this.parentNode.children[0]).attr('height',19*(lineNumber+1));
});
}
//折叠节点及其所有子节点
功能崩溃(d){
如果(d.儿童){
d、 _children=d.children
d、 _儿童。forEach(崩溃)
d、 children=null
}
}
函数更新(源){
//为节点指定x和y位置
var treeData=树映射(根);
//计算新的树布局。
var nodes=treeData.subjects(),
links=treeData.subjects().slice(1);
//为固定深度进行规格化。
节点。forEac
    <!DOCTYPE html>
<meta charset="UTF-8">
<!-- load the d3.js library --> 
<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="https://d3plus.org/js/d3plus-text.v0.10.full.min.js"></script>

<style>
    .node circle {
      fill: #FFF;
      stroke: #009BE4;
      stroke-width: 2px;
    }
    .node text {
      font: 12px sans-serif;
    }
    .link {
      fill: none;
      stroke: #555;
      stroke-width: 2px;
      stroke-opacity: 0.3;
    }
</style>

<body>
    <script>
        const circleSize = 8
        
        // Set the dimensions and margins of the diagram
        var margin = {top: 20, right: 90, bottom: 30, left: 90},
            width = 900 - margin.left - margin.right,
            height = 900 - margin.top - margin.bottom;
            
        // declares a tree layout and assigns the size
        var treemap = d3.tree().size([height, width]);
        
        // load the external data
        var flatData = [
            {"name": "This is a very long name for the top level", "parent": null},
            {"name": "This is a very long name for Level 2A", "parent": "This is a very long name for the top level" },
            {"name": "This is a very long name for Level 2B", "parent": "This is a very long name for the top level" },
            {"name": "This is a very long name for Son of A", "parent": "This is a very long name for Level 2A" },
            {"name": "This is a very long name for Daughter of A", "parent": "This is a very long name for Level 2A" }
            ];
            
            
            // assign null correctly
            flatData.forEach(function(d) {
                if (d.parent == "null") { d.parent = null};
                }); 
                
            // convert the flat data into a hierarchy
            var treeData = d3.stratify()
                .id(function(d) { return d.name; })
                .parentId(function(d) { return d.parent; })
                (flatData);
            
            
            // assign the name to each node
            treeData.each(function(d) {
            d.name = d.data.name;
            }); 
            
            // append the svg object to the body of the page
            // appends a 'group' element to 'svg'
            // moves the 'group' element to the top left margin
            var svg = d3.select("body").append("svg")
                .attr("width", width + margin.right + margin.left)
                .attr("height", height + margin.top + margin.bottom)
                .append("g")
                .attr("transform", "translate("
                      + margin.left + "," + margin.top + ")");

            var i = 0,
            duration = 500,
            root;
            
            // Assigns parent, children, height, depth
            root = d3.hierarchy(treeData, function(d) { return d.children; });
            root.x0 = height / 2;
            root.y0 = 0;

            // Collapse after the second level
            root.children.forEach(collapse);
            update(root);
            
            new d3plus.TextBox()
              .data(d3.select("text#rectResize"))
              .fontSize(16)
              .width(200)
              .x(function(d, i) { return i * 250; })
              .render();
            
            // wrap text - not elegant way to wrap text         
            function wrap2(text, width) {
              text.each(function() {
                var text = d3.select(this),
                  // words = text.text().split(/\s+/).reverse(), In order to prevent cutting through non-breaking spaces, replaced by below
                  words = text.text().split(/[ \f\n\r\t\v]+/).reverse(),
                  word,
                  line = [],
                  lineNumber = 0,
                  lineHeight = 1.2, // ems
                  y = text.attr("y"),
                  x = text.attr("x"),
                  dy = parseFloat(text.attr("dy")),
                  tspan = text.text(null).append("tspan").attr("x", x).attr("y", y).attr("dy", dy + "em");
                while (word = words.pop()) {
                  line.push(word);
                  tspan.text(line.join(" "));
                  if (tspan.node().getComputedTextLength() > width) {
                    line.pop();
                    tspan.text(line.join(" "));
                    line = [word];
                    tspan = text.append("tspan").attr("x", x).attr("y", y).attr("dy", lineHeight + "em").text(word);
                  }
                }
                // find corresponding rect and reszie
                d3.select(this.parentNode.children[0]).attr('height', 19 * (lineNumber+1));
              });
            }


            // Collapse the node and all it's children
            function collapse(d) {
              if(d.children) {
                d._children = d.children
                d._children.forEach(collapse)
                d.children = null
              }
            }

            function update(source) {
              // Assigns the x and y position for the nodes
              var treeData = treemap(root);

              // Compute the new tree layout.
              var nodes = treeData.descendants(),
                  links = treeData.descendants().slice(1);

              // Normalize for fixed-depth.
              nodes.forEach(function(d){ d.y = d.depth * 180});

              // ****************** Nodes section ***************************

              // Update the nodes...
              var node = svg.selectAll('g.node')
                  .data(nodes, function(d) {return d.id || (d.id = ++i); });

              // Enter any new modes at the parent's previous position.
              var nodeEnter = node.enter().append('g')
                  .attr('class', 'node')
                  .attr("transform", function(d) {
                    return "translate(" + source.y0 + "," + source.x0 + ")";
                })
                .on('click', click);

              // Add Circle for the nodes
              nodeEnter.append('circle')
                  .attr('class', 'node')
                  .attr('r', 1e-6)
                  .style("fill", function(d) {
                      return d._children ? "lightsteelblue" : "#fff";
                  });

              // Add labels for the nodes
              nodeEnter.append('text')
                  .attr("id", "rectResize")
                  .attr("dy", "0em")
                  /* .attr("x", d => d.children ? -15 : 15) */
                  // .attr("text-anchor", d => d.children ? "end" : "start")
                  .attr("x", function(d) {
                      return d.children || d._children ? -15 : 15;
                  })
                  .attr("text-anchor", function(d) {
                      return d.children || d._children ? "end" : "start";
                  })
                  .text(function(d) { return d.data.name; })
                  .style("fill-opacity", 1)
                  // .call(wrap, 150)
                  .clone(true).lower()
                  .attr("stroke", "white");
              
              // UPDATE
              var nodeUpdate = nodeEnter.merge(node);

              // Transition to the proper position for the node
              nodeUpdate.transition()
                .duration(duration)
                .attr("transform", function(d) { 
                    return "translate(" + d.y + "," + d.x + ")";
                 });

              // Update the node attributes and style
              nodeUpdate.select('circle.node')
                .attr('r', circleSize)
                .style("fill", function(d) {
                    return d._children ? "lightsteelblue" : "#fff";
                })
                .attr('cursor', 'pointer');


              // Remove any exiting nodes
              var nodeExit = node.exit().transition()
                  .duration(duration)
                  .attr("transform", function(d) {
                      return "translate(" + source.y + "," + source.x + ")";
                  })
                  .remove();

              // On exit reduce the node circles size to 0
              nodeExit.select('circle')
                .attr('r', 1e-6);

              // On exit reduce the opacity of text labels
              nodeExit.select('text')
                .style('fill-opacity', 1e-6);

              // ****************** links section ***************************

              // Update the links...
              var link = svg.selectAll('path.link')
                  .data(links, function(d) { return d.id; });
                  

              // Enter any new links at the parent's previous position.
              var linkEnter = link.enter().insert('path', "g")
                  .attr("class", "link")
                  .attr('d', function(d){
                    var o = {x: source.x0, y: source.y0}
                    return diagonal(o, o)
                  });

              // UPDATE
              var linkUpdate = linkEnter.merge(link);

              // Transition back to the parent element position
              linkUpdate.transition()
                  .duration(duration)
                  .attr('d', function(d){ return diagonal(d, d.parent) });

              // Remove any exiting links
              var linkExit = link.exit().transition()
                  .duration(duration)
                  .attr('d', function(d) {
                    var o = {x: source.x, y: source.y}
                    return diagonal(o, o)
                  })
                  .remove();

              // Store the old positions for transition.
              nodes.forEach(function(d){
                d.x0 = d.x;
                d.y0 = d.y;
              });

              // Creates a curved (diagonal) path from parent to the child nodes
              function diagonal(s, d) {

                path = `M ${s.y} ${s.x}
                        C ${(s.y + d.y) / 2} ${s.x},
                          ${(s.y + d.y) / 2} ${d.x},
                          ${d.y} ${d.x}`

                return path
              }

              // Toggle children on click.
              function click(d) {
                if (d.children) {
                    d._children = d.children;
                    d.children = null;
                  } else {
                    d.children = d._children;
                    d._children = null;
                  }
                update(d);
              }
            }
    </script>
</body>