基于面积分界尺度的居民地轮廓化简

分析常用的利用宽度和深度分界尺度进行面状居民地轮廓化简方法中存在的不足,提出基于面积分界尺度的居民地轮廓化简。即首先根据面状居民地的轮廓特征对居民地数据进行预处理,删除其中的冗余数据;然后,通过计算居民地弯曲部分构成的平行四边形的面积判断弯曲部分是否进行化简,并利用对边线的求交进行居民地图形轮廓的化简;最后,通过对实际面状居民地数据的化简实验验证文中方法的有效性和可操作性。

A simplified algorithm for resident based on area segmentation value

The paper analyses the defect of common simplified algorithms for resident that are based on width and depth segmentation value and a simplified algorithm using area segmentation value is proposed.Firstly,It executes preprocessing for resident data according to the contour feature and deletes the redundant data.Then,judges whether to simplify the resident contour or not through computing the area of parallelogram constituted by curve bend and simplifies the resident contour through computing the point of intersection of edges.Finally,the experimental results show the validation of the proposed algorithm.