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index.html
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index.html
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<!DOCTYPE html>
<meta charset="utf-8">
<title>在线词云生成工具</title>
<style>
body {
font-family: Microsoft Yahei;
font-size:14px;
}
#txtJSON {
height: 200px;
width: 98%;
margin: 1% 1% 1% 1%;
border-color: #ccc;
background-color:#f8f8f8;
line-height:150%
}
h2,p{
margin: 1% 1% 1% 1%;
}
button {
width: 50px;
height: 20px;
margin-left: 1%;
}
i {
padding-left:10px;
color:#ccc;
}
</style>
<body>
<h2>在线词云生成工具</h2>
<div>
<p>文本格式:词语,词频</br>
d3,10</br>
word,8</br>
cloud,7</p>
</div>
<div>
<textarea class="form-control" id="txtJSON" placeholder="粘贴文本到这里,不能有空行。"></textarea>
</div>
<p>
<label for="angle-count">宽</label>
<input type="number" id="width" value="300" min="200">
<label for="angle-from">高</label>
<input type="number" id="height" value="300" min="100">
</p>
<p>
<label for="angle-to">最小字体</label>
<input type="number" id="font-min" value="20" min="10">
<label for="angle-to">最大字体</label>
<input type="number" id="font-max" value="60" min="20">
</p>
<p>
<label for="scale-linear">旋转</label>
<input type="checkbox" name="scale" id="rotation" checked="True">
</p>
<div>
<button id="convert" type="button" class="btn btn-sm" onclick="getin()" > 生成 </button><i>多次点击,可生成不同分布。</i>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
<script src="d3.layout.cloud.js"></script>
<script>
var fill = d3.scale.category20();
var x = Math.random()*2;
console.log(x);
console.log(~~(x));
function getin(){
var dataset = [];
var sizes = [];
var input = document.getElementById("txtJSON").value;
lines = input.split("\n");
for(i=0;i<lines.length;i++){
keys = lines[i].split(",");
if(keys[0]!==""){
sizes.push(keys[1]);
dataset.push({"text":keys[0],"size":keys[1]});
}
}
//console.log(sizes);
var width = document.getElementById("width").value;
var height = document.getElementById("height").value;
var font_min = document.getElementById("font-min").value;
var font_max = document.getElementById("font-max").value;
var check = document.getElementById("rotation").checked;
var max = Math.max.apply(Math,sizes);
var min = Math.min.apply(Math,sizes);
var linear = d3.scale.linear()
.domain([min,max])
.range([font_min,font_max]);
d3.layout.cloud()
.size([width, height])
.words(dataset)
.padding(5)
.spiral("archimedean")
.rotate(function() { if(check){return ~~(Math.random() * 2) * 90; }else{return 0;}})
.font("Microsoft YaHei UI")
.fontSize(function(d) { return linear(d.size); })
.on("end", draw)
.start();
window.scrollTo(0,document.body.scrollHeight);
};
function draw(words) {
d3.select("svg").remove();
d3.select("body").append("svg")
.attr("width", 960)
.attr("height", 600)
.append("g")
.attr("transform", "translate(300,300)")
.selectAll("text")
.data(words)
.enter().append("text")
.style("font-size", function(d) { return d.size + "px"; })
.style("font-family", "Microsoft YaHei UI")
.style("fill", function(d, i) { return fill(i); })
.attr("text-anchor", "middle")
.attr("transform", function(d) {
return "translate(" + [d.x, d.y] + ")rotate(" + d.rotate + ")";
})
.text(function(d) { return d.text; });
}
</script>