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Text</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Animation</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/animation/transition" class="nav-link"><span class="title">Data Transition</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Interaction</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/interaction/drag" class="nav-link"><span class="title">Drag</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li><!----><li class="nav-item"><a href="/handbook/en/how-to/interaction/coarse-pointer" class="nav-link"><span class="title">Intelligent Pointer Snapping</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Best Practices</span></div> <ul class="nav bd-sidenav level1"><!----><li class="nav-item"><a href="/handbook/en/best-practices/canvas-vs-svg" class="nav-link"><span class="title">Canvas vs. SVG</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/best-practices/aria" class="nav-link"><span class="title">Aria</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Edit Handbook</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/meta/edit-guide" class="nav-link"><span class="title">Edit Guide</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li></ul></div> <div class="open-sidebar"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"></path></svg></div></div> <div class="bd-content col-sm-7 pl-sm-2 col-12"><div class="post-content content"><div><div class="post-inner"><!----> <div class="nuxt-content"><article><h1 id="chart-container-and-size" tabindex="-1">Chart Container and Size</h1> <p>In <a href="en/get-started">Get Started</a>, we introduced the API to initialize the ECharts <a href="https://echarts.apache.org//api.html#echarts.init"><code>echarts.init</code></a>. <a href="https://echarts.apache.org//api.html#echarts.init">API Document</a> has introduced the specific meaning of each parameters. Please read and understand the document before reading the following content.</p> <p>Refer to several common usage scenarios, here is the example to initialize a chart and change the size.</p> <h2 id="initialization" tabindex="-1">Initialization</h2> <h3 id="define-a-parent-container-in-html" tabindex="-1">Define a Parent Container in HTML</h3> <p>In general, you need to define a <code><div></code> node and use the CSS to change the width and height. While initializing, import the chart into the node. Without declaring <code>opts.width</code> or <code>opts.height</code>, the size of the chart will default to the size of the node.</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-html line-numbers"><code><span class="token tag"><span class="token tag"><span class="token punctuation"><</span>div</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span>main<span class="token punctuation">"</span></span> <span class="token special-attr"><span class="token attr-name">style</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">"</span><span class="token value css language-css"><span class="token property">width</span><span class="token punctuation">:</span> 600px<span class="token punctuation">;</span><span class="token property">height</span><span class="token punctuation">:</span>400px<span class="token punctuation">;</span></span><span class="token punctuation">"</span></span></span><span class="token punctuation">></span></span><span class="token tag"><span class="token tag"><span class="token punctuation"></</span>div</span><span class="token punctuation">></span></span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <blockquote><p>Tips: Pay attention to how the API defined while reading the documentation. <code>resize()</code> API was sometimes mistaken for the form like <code>myCharts.resize(800, 400)</code> which do not exist.</p></blockquote> <h3 id="dispose-and-rebuild-of-the-container-node" tabindex="-1">Dispose and Rebuild of the Container Node</h3> <p>We assume that there exist several bookmark pages and each page contained some charts. In this case, the content in other pages will be removed in DOM when select one page. The user will not find the chart after reselecting these pages.</p> <p>Essentially, this is because the container node of the charts was removed. Even if the node is added again later, the node where the graph is located no longer exists.</p> <p>The correct way is, call <a href="https://echarts.apache.org/api.html#echartsInstance.dispose"><code>echartsInstance.dispose</code></a> to dispose the instance after the container was disposed, and call <a href="https://echarts.apache.org//api.html#echarts.init">echarts.init</a> to initialize after the container was added again.</p> <blockquote><p>Tips: Call <a href="https://echarts.apache.org/api.html#echartsInstance.dispose"><code>echartsInstance.dispose</code></a> to release resources while disposing the node to avoid memory leaks.</p></blockquote></article></div></div> <div class="post-contributors"><h3><span class="inline-block align-middle">Contributors</span> <a target="_blank" href="https://github.com/apache/echarts-handbook/tree/master/contents/en/concepts/chart-size.md" title="Edit this Document" class="inline-block align-middle text-sm"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-8 w-8 inline-block align-middle"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg> <span class="inline-block align-middle">Edit this page on GitHub</span></a></h3> <div class="post-contributors-list"><a href="https://github.com/pissang" target="_blank" class="post-contributor"><img alt="pissang" src="https://avatars.githubusercontent.com/pissang?size=60" loading="lazy"> <span>pissang</span></a><a href="https://github.com/plainheart" target="_blank" class="post-contributor"><img alt="plainheart" src="https://avatars.githubusercontent.com/plainheart?size=60" loading="lazy"> <span>plainheart</span></a><a href="https://github.com/ppd0705" target="_blank" class="post-contributor"><img alt="ppd0705" src="https://avatars.githubusercontent.com/ppd0705?size=60" loading="lazy"> <span>ppd0705</span></a></div></div></div></div></div></div> <link rel="stylesheet" href="//fastly.jsdelivr.net/npm/highlight.js@9.12.0/styles/github-gist.min.css"></div></div></div></div><script>window.__NUXT__=function(t,e,i,a,r,d,n,l,h,o,c,s,p,g,m,f,b,C,u,w,I,z,P,k,y,v,A,S,B,W,x,D,G,Z,R,H,L,X,T,N,V,E,Y,K,j,F,J,M,Q,O,U,q,_,$,tt,et,it,at){return{layout:"default",data:[{html:'<h1 id="chart-container-and-size" tabindex="-1">Chart Container and Size</h1>\n<p>In <a href="en/get-started">Get Started</a>, we introduced the API to initialize the ECharts <a href="https://echarts.apache.org//api.html#echarts.init"><code>echarts.init</code></a>. <a href="https://echarts.apache.org//api.html#echarts.init">API Document</a> has introduced the specific meaning of each parameters. Please read and understand the document before reading the following content.</p>\n<p>Refer to several common usage scenarios, here is the example to initialize a chart and change the size.</p>\n<h2 id="initialization" tabindex="-1">Initialization</h2>\n<h3 id="define-a-parent-container-in-html" tabindex="-1">Define a Parent Container in HTML</h3>\n<p>In general, you need to define a <code><div></code> node and use the CSS to change the width and height. While initializing, import the chart into the node. Without declaring <code>opts.width</code> or <code>opts.height</code>, the size of the chart will default to the size of the node.</p>\n<md-code-block lang="html" code="\'PGRpdiBpZD0ibWFpbiIgc3R5bGU9IndpZHRoOiA2MDBweDtoZWlnaHQ6NDAwcHg7Ij48L2Rpdj4KPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPgogIHZhciBteUNoYXJ0ID0gZWNoYXJ0cy5pbml0KGRvY3VtZW50LmdldEVsZW1lbnRCeUlkKCdtYWluJykpOwo8L3NjcmlwdD4\'" line-highlights="\'\'" />\n<p>To be noticed, before calling <code>echarts.init</code>, you need to make sure the container already has width and height.</p>\n<h3 id="specify-the-chart-size" tabindex="-1">Specify the chart size</h3>\n<p>If the height and width of the container do not exist, or you wish the chart size not equal to the container, you can initialize the size at the beginning.</p>\n<md-code-block lang="html" code="\'PGRpdiBpZD0ibWFpbiI-PC9kaXY-CjxzY3JpcHQgdHlwZT0idGV4dC9qYXZhc2NyaXB0Ij4KICB2YXIgbXlDaGFydCA9IGVjaGFydHMuaW5pdChkb2N1bWVudC5nZXRFbGVtZW50QnlJZCgnbWFpbicpLCBudWxsLCB7CiAgICB3aWR0aDogNjAwLAogICAgaGVpZ2h0OiA0MDAKICB9KTsKPC9zY3JpcHQ-\'" line-highlights="\'\'" />\n<h2 id="reactive-of-the-container-size" tabindex="-1">Reactive of the Container Size</h2>\n<h3 id="listen-to-the-container-size-to-change-the-chart-size" tabindex="-1">Listen to the Container Size to Change the Chart Size</h3>\n<p>In some cases, we want to accordingly change the chart size while the size of containers changed.</p>\n<p>For instance, the container has a height of 400px and a width of 100% site width. If you are willing to change the site width while stable the chart width as 100% of it, try the following method.</p>\n<p>You can listen to <code>resize</code> of the site to catch the event that the browser is resized. Then use <a href="https://echarts.apache.org/api.html#echartsInstance.resize"><code>echartsInstance.resize</code></a> to resize the chart.</p>\n<md-code-block lang="html" code="\'PHN0eWxlPgogICNtYWluLAogIGh0bWwsCiAgYm9keSB7CiAgICB3aWR0aDogMTAwJTsKICB9CiAgI21haW4gewogICAgaGVpZ2h0OiA0MDBweDsKICB9Cjwvc3R5bGU-CjxkaXYgaWQ9Im1haW4iPjwvZGl2Pgo8c2NyaXB0IHR5cGU9InRleHQvamF2YXNjcmlwdCI-CiAgdmFyIG15Q2hhcnQgPSBlY2hhcnRzLmluaXQoZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoJ21haW4nKSk7CiAgd2luZG93LmFkZEV2ZW50TGlzdGVuZXIoJ3Jlc2l6ZScsIGZ1bmN0aW9uKCkgewogICAgbXlDaGFydC5yZXNpemUoKTsKICB9KTsKPC9zY3JpcHQ-\'" line-highlights="\'\'" />\n<h3 id="state-a-specific-chart-size" tabindex="-1">State a Specific Chart Size</h3>\n<p>Except for calling <code>resize()</code> without parameters, you can state the height and width to implement the chart size different from the size of the container.</p>\n<md-code-block lang="js" code="\'bXlDaGFydC5yZXNpemUoewogIHdpZHRoOiA4MDAsCiAgaGVpZ2h0OiA0MDAKfSk7\'" line-highlights="\'\'" />\n<blockquote>\n<p>Tips: Pay attention to how the API defined while reading the documentation. <code>resize()</code> API was sometimes mistaken for the form like <code>myCharts.resize(800, 400)</code> which do not exist.</p>\n</blockquote>\n<h3 id="dispose-and-rebuild-of-the-container-node" tabindex="-1">Dispose and Rebuild of the Container Node</h3>\n<p>We assume that there exist several bookmark pages and each page contained some charts. 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