多比例尺电子地图中基于线性道路的POI抽稀

POI selection with the reference of linear roads in multi-scale maps

基于电子地图中POI表现出多尺度、数量大、分布特征多样等特点,针对POI沿道路线的分布特征,在考虑POI数据重要性权重的情况下,采用距离阈值抽稀POI,通过实例数据验证多比例尺条件下方案的可行性,达到POI数据实用性与简洁性的双重标准。

With the challenges of the multi-scale, large volume and various distributions about POI in electronic maps, it presents the POI with different weights and then calculates the distance to the reference of the linear roads to determine the selection of POI in multi-scale maps, and to check out the approach with the cases to demonstrate its feasibility and application.