如何在d3 v4中制作可点击的过渡条形图？

Question

How to make a clickable transition bar graph in d3 v4? 如何在d3 v4中制作可点击的过渡条形图？

Current code: 当前代码：

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <title>D3: A bar chart that transitions to new data!</title>
        <script src="https://d3js.org/d3.v4.min.js"></script>
        <style type="text/css">
            /* No style rules here yet */       
        </style>
    </head>
    <body>

        <p>Click on this text to update the chart with new data values (once).</p>

        <script type="text/javascript">
            //Width and height
            var w = 600;
            var h = 250;

            var dataset = [ 5, 10, 13, 19, 21, 25, 22, 18, 15, 13,
                            11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];

            var xScale = d3.scaleBand()
                            .rangeRound([0, w])
                            .padding(0.05);

            var yScale = d3.scaleLinear()
                            .domain([0, d3.max(dataset)])
                            .range([0, h]);

            //Create SVG element
            var svg = d3.select("body")
                        .append("svg")
                        .attr("width", w)
                        .attr("height", h);
            //Create bars
            svg.selectAll("rect")
               .data(dataset)
               .enter()
               .append("rect")
               .attr("x", function(d, i) {
                    return xScale(i);
               })
               .attr("y", function(d) {
                    return h - yScale(d);
               })
               .attr("width", xScale.bandwidth())
               .attr("height", function(d) {
                    return yScale(d);
               })
               .attr("fill", function(d) {
                    return "rgb(0, 0, " + (d * 10) + ")";
               });
            //Create labels
            svg.selectAll("text")
               .data(dataset)
               .enter()
               .append("text")
               .text(function(d) {
                    return d;
               })
               .attr("text-anchor", "middle")
               .attr("x", function(d, i) {
                    return xScale(i) + xScale.bandwidth() / 2;
               })
               .attr("y", function(d) {
                    return h - yScale(d) + 14;
               })
               .attr("font-family", "sans-serif")
               .attr("font-size", "11px")
               .attr("fill", "white");
            //On click, update with new data            
            d3.select("p")
                .on("click", function() {
                    //New values for dataset
                    dataset = [ 11, 12, 15, 20, 18, 17, 16, 18, 23, 25,
                                5, 10, 13, 19, 21, 25, 22, 18, 15, 13 ];
                    //Update all rects
                    svg.selectAll("rect")
                       .data(dataset)
                       .transition()                                // <-- This makes it a smooth transition!
                       .attr("y", function(d) {
                            return h - yScale(d);
                       })
                       .attr("height", function(d) {
                            return yScale(d);
                       })
                       .attr("fill", function(d) {
                            return "rgb(0, 0, " + (d * 10) + ")";
                       });
                    //Update all labels
                    svg.selectAll("text")
                       .data(dataset)
                       .text(function(d) {
                            return d;
                       })
                       .attr("x", function(d, i) {
                            return xScale(i) + xScale.band() / 2;
                       })
                       .attr("y", function(d) {
                            return h - yScale(d) + 14;
                       });

                });

        </script>
    </body>
</html>

Code above from: https://github.com/alignedleft/d3-book/blob/master/chapter_09/05_transition.html http://examples.oreilly.com/0636920026938/chapter_09/05_transition.html 上面的代码来自： https : //github.com/alignedleft/d3-book/blob/master/chapter_09/05_transition.html http://examples.oreilly.com/0636920026938/chapter_09/05_transition.html

I am getting errors after switching the code to v4. 将代码切换到v4后出现错误。 I fixed the errors I knew about but now I am getting these one errors in the JavaScript console: 我修复了我所知道的错误，但是现在我在JavaScript控制台中遇到了以下一个错误：

Error: attribute x: Expected length, "NaN". 错误：属性x：预期长度“ NaN”。

Answer 1

You are not setting the domain of the x scale: 您未设置x比例尺的域：

var xScale = d3.scaleBand()
    .domain(d3.range(dataset.lengh))
    .rangeRound([0, w])
    .padding(0.1);

Also, pay attention to xScale.band() , which doesn't exist: it should be xScale.bandwidth() instead. 另外，请注意xScale.band() ，它不存在：它应该是xScale.bandwidth() 。

Here is a working code, with the domain: 这是具有域的工作代码：

 var w = 600; var h = 250; var dataset = [5, 10, 13, 19, 21, 25, 22, 18, 15, 13, 11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ]; var xScale = d3.scaleBand() .domain(d3.range(dataset.length)) .rangeRound([0, w]) .padding(0.1); var yScale = d3.scaleLinear() .domain([0, d3.max(dataset)]) .range([0, h]); //Create SVG element var svg = d3.select("body") .append("svg") .attr("width", w) .attr("height", h); //Create bars svg.selectAll("rect") .data(dataset) .enter() .append("rect") .attr("x", function(d, i) { return xScale(i); }) .attr("y", function(d) { return h - yScale(d); }) .attr("width", xScale.bandwidth()) .attr("height", function(d) { return yScale(d); }) .attr("fill", function(d) { return "rgb(0, 0, " + (d * 10) + ")"; }); //Create labels svg.selectAll("text") .data(dataset) .enter() .append("text") .text(function(d) { return d; }) .attr("text-anchor", "middle") .attr("x", function(d, i) { return xScale(i) + xScale.bandwidth() / 2; }) .attr("y", function(d) { return h - yScale(d) + 14; }) .attr("font-family", "sans-serif") .attr("font-size", "11px") .attr("fill", "white"); //On click, update with new data d3.select("p") .on("click", function() { //New values for dataset dataset = [11, 12, 15, 20, 18, 17, 16, 18, 23, 25, 5, 10, 13, 19, 21, 25, 22, 18, 15, 13 ]; //Update all rects svg.selectAll("rect") .data(dataset) .transition() // <-- This makes it a smooth transition! .attr("y", function(d) { return h - yScale(d); }) .attr("height", function(d) { return yScale(d); }) .attr("fill", function(d) { return "rgb(0, 0, " + (d * 10) + ")"; }); //Update all labels svg.selectAll("text") .data(dataset) .text(function(d) { return d; }) .attr("y", function(d) { return h - yScale(d) + 14; }); });

 <script src="https://d3js.org/d3.v4.min.js"></script> <p>Click on this text to update the chart with new data values (once).</p>

如何在d3 v4中制作可点击的过渡条形图？

问题描述

1 个解决方案

解决方案1
2 已采纳 2017-05-17 03:32:06

如何在d3 v4中制作可点击的过渡条形图？

问题描述

1 个解决方案

解决方案1 2 已采纳 2017-05-17 03:32:06

解决方案1
2 已采纳 2017-05-17 03:32:06