RadarChart 雷达扫描
<h1>雷达扫描框架</h1>
<p class="codepen" data-height="265" data-theme-id="0" data-default-tab="js,result" data-user="aoobao" data-slug-hash="mvxoLg" style="height: 265px; box-sizing: border-box; display: flex; align-items: center; justify-content: center; border: 2px solid black; margin: 1em 0; padding: 1em;" data-pen-title="RadarChart">
<span>See the Pen <a href="https://codepen.io/aoobao/pen/mvxoLg/">
RadarChart</a> by feng (<a href="https://codepen.io/aoobao">@aoobao</a>)
on <a href="https://codepen.io">CodePen</a>.</span>
</p>
<script async src="https://static.codepen.io/assets/embed/ei.js"></script>
<h2>构造方法</h2>
<p><code>new AMapUtils.RadarChart(opt)</code></p>
<h3>opt</h3>
<table>
<thead>
<tr>
<th>参数名</th>
<th>类型</th>
<th>格式</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>map</td>
<td>Map</td>
<td>高德地图本身对象</td>
<td>必传</td>
</tr>
<tr>
<td>center</td>
<td>[x,y]</td>
<td><code>[x,y]</code>x:经度longitude,y:纬度latitude,下同</td>
<td>雷达中心点 必传</td>
</tr>
<tr>
<td>target</td>
<td>[x,y]</td>
<td>[120.123,30.123]</td>
<td>雷达扫描起始点(确定起始点以及扫描半径) 必传</td>
</tr>
<tr>
<td>coverNumber</td>
<td>Float</td>
<td>0.2</td>
<td>雷达扫描消失参数 数值越大,雷达区域越窄</td>
</tr>
<tr>
<td>speed</td>
<td>Int</td>
<td>60</td>
<td>雷达扫描速度</td>
</tr>
<tr>
<td>fillStyle</td>
<td>String</td>
<td>'rgba(0,200,0,0.7)'</td>
<td>雷达扫描颜色</td>
</tr>
<tr>
<td>callback</td>
<td>Function</td>
<td>callback(e)</td>
<td>雷达扫描回调 e.start 起始角度 e.end 结束角度</td>
</tr>
</tbody>
</table>
<h3>methods</h3>
<table>
<thead>
<tr>
<th>方法名</th>
<th>返回值</th>
<th>说明</th>
</tr>
</thead>
<tbody>
<tr>
<td>start()</td>
<td>null</td>
<td>开始扫描</td>
</tr>
<tr>
<td>stop()</td>
<td>null</td>
<td>停止扫描</td>
</tr>
<tr>
<td>destroy()</td>
<td></td>
<td>注销对象</td>
</tr>
</tbody>
</table>