Buildings

A polygon feature class representing permanent or semi-permanent buildings, larger than 10 square meters within the municipal boundaries of the City of London as identified through aerial imagery.本数据集为多边形要素类（polygon feature class），涵盖通过航空影像识别得到的伦敦市行政辖区内面积大于10平方米的永久性及半永久性建筑。