d3实现文字蛇形动画效果-html代码-BFW代码库

d3实现文字蛇形动画效果

代码语言：html

代码描述：d3实现文字蛇形动画效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>
html {
  line-height: 1.15;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  font-family: "Lato", sans-serif;
}

body {
  margin: 0;
  overflow-x: hidden;
}

section {
  display: block;
}

svg {
  overflow: visible;
}

section {
  background-color: white;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-weight: 300;
}

#viz-word-snake {
  font-size: 14px;
  white-space: pre;
  cursor: default;
  width: 700px;
  margin: 0 auto;
}

.circle-path {
  fill: none;
  pointer-events: none;
}

.node .circle-background {
  fill: none;
  pointer-events: all;
  cursor: pointer;
}

.circle-center-translation {
  font-family: "Lato", sans-serif;
  font-size: 0.8em;
  font-weight: 400;
  text-anchor: middle;
  pointer-events: none;
}

.circle-center-original {
  font-family: "Dancing Script", cursive;
  font-size: 1.7em;
  text-anchor: middle;
  pointer-events: none;
}

.circle-center-language {
  font-family: "Lato", sans-serif;
  font-size: 0.8em;
  font-weight: 400;
  font-style: italic;
  text-anchor: middle;
  pointer-events: none;
}

.circle-path-legend {
  font-family: "Lato", sans-serif;
  font-size: 0.8em;
  pointer-events: none;
}

.circle-path-text {
  font-family: "Dancing Script", cursive;
  font-size: 1.1em;
  pointer-events: none;
}
</style>

</head>
<body translate="no">
<div id="viz-word-snake"></div>
<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/d3.v5.js"></script>
<script >
var darkgrey = "#161616",
            middlegrey = "#a7a7a7",
            lightgrey = "#afafaf";

        var languageMap = [];
        languageMap["de"] = "German";
        languageMap["es"] = "Spanish";
        languageMap["fr"] = "French";
        languageMap["it"] = "Italian";
        languageMap["ja"] = "Japanese";
        languageMap["nl"] = "Dutch";
        languageMap["pl"] = "Polish";
        languageMap["pt"] = "Portuguese";
        languageMap["ru"] = "Russian";
        languageMap["tr"] = "Turkish";
        languageMap["all"] = "All languages";
        var divWidth = parseInt(d3.select("#viz-word-snake").style("width"));
        var margin = {
            top: 10,
            right: 10,
            bottom: 40,
            left: 10
        };
        var width = divWidth - margin.left - margin.right;
        var height = width;
console.log(divWidth,width,height)
        //SVG container
        var svg = d3.select("#viz-word-snake").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) + ")");

        var parseTime = d3.timeParse("%Y-%m-%d"); // timeParse is added in version v4 
        var angle = 35 * Math.PI / 180;
        var radius = 75;
        var newXmargin = margin.left;
        var n;
        //Round number to 2 behind the decimal
        function round2(num) {
            return (Math.round((num + 0.00001) * 100) / 100);
        }//round2
        function calculateGrid() {
            //How many circles fir in one "row"
            var s = width / Math.cos(angle);
            var numCircle = Math.min(4, Math.floor(s / (2 * radius)));
            //I don't want 1 circle
            if (numCircle === 1) numCircle = 2;
            //If it's not an exact fit, make it so
            radius = Math.min(radius, round2((s / numCircle) / 2));

            //Save the x-locations if each circle
            var xLoc = new Array(numCircle);
            for (var i = 0; i < numCircle; i++) {
                xLoc[i] = round2((1 + 2 * i) * radius * Math.cos(angle));
            }//for i

            //Locations for the textPath
            var xLocArc = new Array(numCircle + 1);
            for (var i = 0; i <= numCircle; i++) {
                xLocArc[i] = round2(2 * i * radius * Math.cos(angle));
            }//for i

            //New wid.........完整代码请登录后点击上方下载按钮下载查看