Building Footprint 2D

A collection of polygon features for all buildings within the Urban Development Boundary (UDB) and outside the UDB, approximately 938 square miles. The planimetric layer for Miami-Dade County was previously updated in 2015 byEarth Sciences and Resources Institute (ESRI). This feature class contains features extracted from LiDAR captured by GPI in 2018 and updated with Woolpert 2021 data. Please contact the GIS Technical Support Team at [e-mail] for additional information. Definition of particular fields in the Buildings Footprint 2D feature class: Source = {"L", "P"} where L = LiDAR, P = MDC Planimetric Bld_type = {"S", "L"} where S = Small Buildings, L = Large Buildings Updated: Unknown The data was created using: Projected Coordinate System: WGS_1984_Web_Mercator_Auxiliary_Sphere Projection: Mercator_Auxiliary_Sphere本数据集涵盖迈阿密-戴德县（Miami-Dade County）城市开发边界（Urban Development Boundary, UDB）内外所有建筑物的多边形要素，覆盖面积约938平方英里。迈阿密-戴德县的平面测绘图层此前曾于2015年由地球科学与资源研究所（Earth Sciences and Resources Institute, ESRI）完成更新。本要素类包含从GPI于2018年采集的激光雷达（LiDAR）数据中提取，并结合Woolpert 2021年数据进行更新的要素。如需获取更多信息，请联系GIS技术支持团队，联系邮箱为[e-mail]。建筑物足迹2D（Buildings Footprint 2D）要素类中特定字段的定义如下：Source（来源）字段取值为{"L", "P"}，其中L代表激光雷达（LiDAR）数据，P代表迈阿密-戴德县平面测绘建筑物数据；Bld_type（建筑物类型）字段取值为{"S", "L"}，其中S代表小型建筑物，L代表大型建筑物。更新状态：未知。本数据采用以下坐标系创建：投影坐标系为WGS_1984_Web_Mercator_Auxiliary_Sphere（WGS_1984网络墨卡托辅助球体坐标系），投影方式为Mercator_Auxiliary_Sphere（辅助球体墨卡托投影）。