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20-id-高版本id不能以数字开头.html
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20-id-高版本id不能以数字开头.html
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<!DOCTYPE html>
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" type="text/css" href="svg270/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="svg270/themes/icon.css">
<script type="text/javascript" src="svg270/jquery.min.js"></script>
<script type="text/javascript" src="svg270/jquery.easyui.min.js"></script>
<!--高版本-->
<script src="svg311/node_modules/@svgdotjs/svg.js/dist/svg.js"></script>
<script src="svg311/node_modules/@svgdotjs/svg.panzoom.js/dist/svg.panzoom.js"></script>
<script src="svg311/node_modules/@svgdotjs/svg.draggable.js/dist/svg.draggable.js"></script>
</head>
<style>
</style>
<!--
-->
<body>
<div id="drawing" style="border:2px solid green;width: 800px;height: 600px;">
</div>
</body>
<script>
var draw = initDrawing();
var defs = draw.defs()
var g = draw.group();
g.attr("id","2a")
//内部元素不能用 数字开头，不然报【 is not a valid selector】
let t = SVG("#2a");
console.log(t)
/**
初始化画布
*/
function initDrawing(){
//测试证明 外部的 div 也不能用 数字开头,不然报【 is not a valid selector】
var drawingId = "drawing";
//高版本
var draw = SVG().addTo('#'+drawingId).size("100%", "100%");
// pan and zoom
//动态计算 viewbox内部的值
let width = $('#' + drawingId).width();
let height = $('#' + drawingId).height();
draw.viewbox('0 0 '+width+' '+height).panZoom({ zoomMin: 0.5, zoomMax: 20 });
return draw;
}
function createUUID() {
var x = 13 * Math.floor(Math.random() * 1000) + "-" + 7 * Math.floor(Math.random() * 100);
return "id_" + x;
}
/**
* 生成随机颜色
*/
function getRandomColor() {
var x = getRandomInteger();
return "#" + x;
}
/**
* 生成随机数
*/
function getRandomInteger() {
var x = Math.floor(Math.random() * 9) + "" + Math.floor(Math.random() * 9) + "" + Math.floor(Math.random() * 9);
return x;
}
</script>
</html>