DATA RECORD / 数据记录
Beijing building footprints
北京六环内建筑物图层
Explore the local building layer with view-based loading, click inspection and an optional proportional 3D view.
按视野加载本地建筑图层，支持点击查询和可选的比例三维视图。
low / 低medium / 中high / 高height values shown as raw values / height 为原始值
QUERY / 查询
Click a building to inspect it
点击建筑面查看其原始 ID 与属性。
At low zoom the map draws a compact density overview. Detail tiles are requested only after zooming in, then cached for panning. Click selection is limited to loaded features so the browser does not scan the complete source file.
低缩放时显示轻量密度概览；放大后才请求细节瓦片，并缓存已加载区域。点击查询只在当前已加载要素中进行，不扫描整份源文件。
File statusLocal source inspected本地源文件已盘点
Raw size175,539,447 bytes约 167.4 MiB
Checksum9bdd1cfdfcdfdc1d…c380515完整值记录在项目审计文档
DownloadNot published in prototype原始下载待来源与许可确认