相机操作
<h1>相机操作</h1>
<h2>构造函数</h2>
<p><code>new BCore2DFast.Viewer.Viewer2D(config)</code></p>
<h3>参数</h3>
<ul>
<li><strong>config</strong>: <code>BCore2DFast.Viewer.Viewer2DConfig</code>
<ul>
<li>二维图纸视图对象的配置。</li>
</ul></li>
</ul>
<h2>方法</h2>
<h3>1.恢复主视图</h3>
<ul>
<li><strong>描述</strong>: <code>setHomeView()</code></li>
<li><strong>示例</strong>:
<pre><code class="language-javascript">mViewer2D.setHomeView();</code></pre></li>
</ul>
<h3>2.获取当前视口状态</h3>
<ul>
<li><strong>接口</strong>: <code>getViewportInfo()</code></li>
<li>
<p><strong>返回值</strong>: <code>ViewportInfo</code></p>
</li>
<li><strong>示例</strong>:
<pre><code class="language-javascript">var viewer2dConfig = new BCore2DFast.Viewer.Viewer2DConfig();
var viewer2D = new BCore2DFast.Viewer.Viewer2D(viewer2dConfig);
var lookat = viewer2D.getViewportInfo();</code></pre></li>
</ul>
<h3>3.恢复指定的视口状态</h3>
<ul>
<li><strong>接口</strong>: <code>setViewportInfo(ViewportInfo)</code></li>
<li>
<p><strong>参数</strong>:</p>
<ul>
<li><strong>ViewportInfo</strong>: <code>ViewportInfo</code>（必选）- 视口状态信息。</li>
</ul>
</li>
<li>
<p><strong>示例</strong>:</p>
<pre><code class="language-javascript">const ViewPortInfo = {
cameraDirection: {x: -0, y: -0, z: -1},
cameraType: &quot;PerspectiveCamera&quot;,
cameraUpVector: {x: 0, y: 1, z: 0},
cameraViewPoint: {x: 53277.820720150004, y: 38240.21074782251, z: 72832.73645827129},
fieldOfView: 60,
target: {x: 0, y: 0, z: 0},
viewToWorldScale: 0
};
var viewer2dConfig = new BCore2DFast.Viewer.Viewer2DConfig();
var viewer2D = new BCore2DFast.Viewer.Viewer2D(viewer2dConfig);
viewer2D.setViewportInfo(ViewportInfo);</code></pre>
</li>
</ul>
<h3>4. 缩放到指定的模型盒子。</h3>
<ul>
<li><strong>接口</strong>: <code>zoomToBoundingBox(boundingBox, isAnimation = false, delay = 1000, callback?: Function)</code></li>
<li>
<p><strong>参数</strong>:</p>
<ul>
<li><strong>boundingBox</strong>: <code>{max, min}</code> — 包含最大点和最小点的盒子模型</li>
<li><strong>isAnimation</strong>: <code>boolean</code>（可选）— 是否播放动画，默认值为 <code>false</code></li>
<li><strong>delay</strong>: <code>number</code>（可选）— 延迟时间，默认值为 <code>1000</code> 毫秒</li>
<li><strong>callback</strong>: <code>Function</code>（可选）— 回调函数</li>
</ul>
</li>
<li><strong>示例</strong>:
<pre><code class="language-javascript">const min = {x: 65863.96543271418, y: 49638.96915895038, z: 0 };
const max = {x: 65013.965432714176, y: 48072.302492283714, z: 0 };
viewer2D.zoomToBoundingBox({max: max, min: min});</code></pre></li>
</ul>
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