事件回调
<h1>事件回调</h1>
<h2>构造函数</h2>
<pre><code class="language-javascript">new BCore2DFast.Viewer.Viewer2D(config)</code></pre>
<h3>参数</h3>
<table>
<thead>
<tr>
<th>参数名</th>
<th>类型</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>config</td>
<td>BCore2DFast.Viewer.Viewer2DConfig</td>
<td>三维模型视图对象的配置</td>
</tr>
</tbody>
</table>
<h3>方法</h3>
<ul>
<li><code>addEventListener(eventType: string, callback: Function)</code> : 增加事件监听</li>
<li><code>removeEventListener(eventType: string, callBack: Function)</code> : 移除事件监听</li>
</ul>
<h4>示例代码</h4>
<pre><code class="language-javascript">var mApplication2DConfig = new BCore2DFast.Application.Application2DConfig();
var mApplication2D = new BCore2DFast.Application.Application2D(mApplication2DConfig);
var mViewer2D = new BCore2DFast.Viewer.Viewer2D('bcorecontainer-2d', new BCore2DFast.Viewer.Viewer2DConfig());
mApplication2D.addViewer2D(mViewer2D);
mViewer2D.addEventListener(BCore2DFast.Static.EventType.AddDrawingEnd, (data) =&gt; {
console.log('模型加载成功');
});</code></pre>
<h4>事件类型</h4>
<table>
<thead>
<tr>
<th>事件类型</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td><code>BCore2DFast.Static.EventType.AddDrawingBegin</code></td>
<td>加载图纸开始</td>
</tr>
<tr>
<td><code>BCore2DFast.Static.EventType.AddDrawingProgress</code></td>
<td>加载图纸中，返回加载进度</td>
</tr>
<tr>
<td><code>BCore2DFast.Static.EventType.AddDrawingEnd</code></td>
<td>加载图纸结束</td>
</tr>
<tr>
<td><code>BCore2DFast.Static.EventType.SavePostilScreenShot</code></td>
<td>保存批注快照</td>
</tr>
<tr>
<td><code>BCore2DFast.Static.EventType.TokenInvalid</code></td>
<td>token无效</td>
</tr>
<tr>
<td><code>BCore2DFast.Static.EventType.LayoutChange</code></td>
<td>布局切换</td>
</tr>
</tbody>
</table>
<h3>使用指南</h3>
<ol>
<li><strong>实例化配置</strong>：创建 <code>Application2DConfig</code> 和 <code>Viewer2DConfig</code> 的实例。</li>
<li><strong>创建应用和查看器</strong>：使用配置实例创建应用和查看器。</li>
<li><strong>事件监听</strong>：为视图添加事件监听器以处理不同的事件。</li>
</ol>
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