test/svg-test.html

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   http://www.apache.org/licenses/LICENSE-2.0

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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
    </head>
    <body>
        <style>
            html, body, #main {
                width: 100%;
                height: 100%;
                /* background-image: url(old_mathematics.png); */
                /* background-repeat: repeat; */
            }
        </style>
        <div id="main"></div>
        <div id="result" style="border:1px solid red; width: 400px; height:300px;position:absolute;left: 0;top:0;">

        </div>
        <script>
            var chart;
            require([
                'echarts'
            ], function (echarts) {

                chart = echarts.init(document.getElementById('main'), null, {
                    renderer: 'svg'
                });

                option ={
                    animation: false,
                    "tooltip": {
                        "trigger": "item",
                        "formatter": "{a} <br/>{b} : {c} ({d}%)"
                    },
                    "series": [
                        {
                        "name": "学员分布情况",
                        "type": "pie",
                        "radius": [
                            20,
                            65
                        ],
                        "center": [
                            "50%",
                            "50%"
                        ],
                        "roseType": "radius",
                        "label": {
                            "show": false
                        },
                        "data": [
                            {
                            "name": "小学数学",
                            "value": 394
                            },
                            {
                            "name": "小学语文",
                            "value": 100
                            }
                        ]
                        }
                    ],
                    "title": {
                        "show": false
                    },
                    "backgroundColor": "#ffffff",
                    "color": [
                        "#7daef3",
                        "#a0d633"
                    ]
                };

                chart.setOption(option);

                var container = document.getElementById('result');
                // var url = escapeHtml(chart.getDataURL());
                var url = escapeHtml(`<svg xmlns="http://www.w3.org/2000/svg" version="1.1" enable-background="new 0 0 100 100" xml:space="preserve" height="100px" width="100px">
<g>
	<path d="M28.1,36.6c4.6,1.9,12.2,1.6,20.9,1.1c8.9-0.4,19-0.9,28.9,0.9c6.3,1.2,11.9,3.1,16.8,6c-1.5-12.2-7.9-23.7-18.6-31.3   c-4.9-0.2-9.9,0.3-14.8,1.4C47.8,17.9,36.2,25.6,28.1,36.6z"/>
	<path d="M70.3,9.8C57.5,3.4,42.8,3.6,30.5,9.5c-3,6-8.4,19.6-5.3,24.9c8.6-11.7,20.9-19.8,35.2-23.1C63.7,10.5,67,10,70.3,9.8z"/>
	<path d="M16.5,51.3c0.6-1.7,1.2-3.4,2-5.1c-3.8-3.4-7.5-7-11-10.8c-2.1,6.1-2.8,12.5-2.3,18.7C9.6,51.1,13.4,50.2,16.5,51.3z"/>
	<path d="M9,31.6c3.5,3.9,7.2,7.6,11.1,11.1c0.8-1.6,1.7-3.1,2.6-4.6c0.1-0.2,0.3-0.4,0.4-0.6c-2.9-3.3-3.1-9.2-0.6-17.6   c0.8-2.7,1.8-5.3,2.7-7.4c-5.2,3.4-9.8,8-13.3,13.7C10.8,27.9,9.8,29.7,9,31.6z"/>
	<path d="M15.4,54.7c-2.6-1-6.1,0.7-9.7,3.4c1.2,6.6,3.9,13,8,18.5C13,69.3,13.5,61.8,15.4,54.7z"/>
	<path d="M39.8,57.6C54.3,66.7,70,73,86.5,76.4c0.6-0.8,1.1-1.6,1.7-2.5c4.8-7.7,7-16.3,6.8-24.8c-13.8-9.3-31.3-8.4-45.8-7.7   c-9.5,0.5-17.8,0.9-23.2-1.7c-0.1,0.1-0.2,0.3-0.3,0.4c-1,1.7-2,3.4-2.9,5.1C28.2,49.7,33.8,53.9,39.8,57.6z"/>
	<path d="M26.2,88.2c3.3,2,6.7,3.6,10.2,4.7c-3.5-6.2-6.3-12.6-8.8-18.5c-3.1-7.2-5.8-13.5-9-17.2c-1.9,8-2,16.4-0.3,24.7   C20.6,84.2,23.2,86.3,26.2,88.2z"/>
	<path d="M30.9,73c2.9,6.8,6.1,14.4,10.5,21.2c15.6,3,32-2.3,42.6-14.6C67.7,76,52.2,69.6,37.9,60.7C32,57,26.5,53,21.3,48.6   c-0.6,1.5-1.2,3-1.7,4.6C24.1,57.1,27.3,64.5,30.9,73z"/>
</g>
</svg>`)
                // url = url.replace(/"/g, '&quot;');
                console.log(url);
                container.innerHTML = '<img src="' + url + '">';


                function escapeHtml (string) {
                    var entityMap = {
                    '&': '&amp;',
                    '<': '&lt;',
                    '>': '&gt;',
                    '"': '&quot;',
                    "'": '&#39;',
                    '/': '&#x2F;',
                    '`': '&#x60;',
                    '=': '&#x3D;'
                    };

                    return String(string).replace(/[&<>"'`=\/]/g, function (s) {
                        return entityMap[s];
                    });
                }
            });
        </script>
    </body>
</html>