起点：
终点：

this is camera

this is camera

this is camera

this is video

this is video

this is video

this is cleaner

this is cleaner

this is cleaner

this is guarder

this is guarder

this is guarder

点位更新样式测试

区域更新样式测试

添加统计点图标

切换显示统计点图标

区域样式

弹窗实现

切换地图

从地图上选取点位坐标

百度地图坐标拾取验证

百度地图坐标测距