Morphing of Building Footprints Using a Turning Angle Function
Morphing of Building Footprints Using a Turning Angle Function
复制标题
使用转角函数对建筑物足迹进行变形
DOI：
10.3390/ijgi6060173
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发表时间：
2017-06-01
影响因子：
3.4
通讯作者：
Xie, Tian
中科院分区：
文献类型：
--
作者：
Li, Jingzhong;Li, Xingong;Xie, Tian
研究了两个不同尺度下建筑足迹多边形的变形问题。这个问题在交互式地图的连续缩放过程中经常发生。建筑足迹在地图上的平面图具有正交特征，但传统的变形方法不能在中等尺度上保留这些地理特征。我们试图通过提出一个基于转角函数的变形模型（TAFBM）来解决这个问题，该模型可以在中间尺度上生成每边具有相同转角的多边形。因此，在整个插值过程中可以保持正交特性。实例研究表明，该模型在应用于不同比例尺的建筑地图数据时取得了良好的效果。在连续概化过程中，很好地保留了正交特征及其与空间方向和拓扑的关系。
We study the problem of morphing two polygons of building footprints at two different scales. This problem frequently occurs during the continuous zooming of interactive maps. The ground plan of a building footprint on a map has orthogonal characteristics, but traditional morphing methods cannot preserve these geographic characteristics at intermediate scales. We attempt to address this issue by presenting a turning angle function-based morphing model (TAFBM) that can generate polygons at an intermediate scale with an identical turning angle for each side. Thus, the orthogonal characteristics can be preserved during the entire interpolation. A case study demonstrates that the model yields good results when applied to data from a building map at various scales. During the continuous generalization, the orthogonal characteristics and their relationships with the spatial direction and topology are well preserved.