摘要
线要素综合是地图综合的重要组成部分,其中尤以化简最为突出。在分析国内外线要素化简相关文献的基础上,提出了一种保持曲线弯曲特征的线要素化简算法。该方法采用保持可视弯曲特征的化简思路,在弯曲取舍的过程中对约束条件进行量化处理,较为准确地描述了弯曲化简前后的变化情况,经过实验检验,化简取得了较好的效果。
Line feature generalization has been an important part of map generalization, of which the linear elements simplification is the most important part. Based on the analysis of the related literature about the simplifi-cation of the linear elements, a curve bend feature line simplification algorithm was proposed. With the quantifica-tion of the constraint conditions in the bend selection process, linear element was simplified and its visual bend was maintained, which help to describe the changes accurately before and after the bend simplification. Through the ex-perimental test, this simplification method has achieved a good result.
出处
《测绘科学技术学报》
CSCD
北大核心
2014年第5期533-537,共5页
Journal of Geomatics Science and Technology
基金
国家863计划项目(2007AA12Z211)
河南省创新性科技人才队伍建设工程项目(104200510016)
信息工程大学地理空间信息学院学位论文创新创优基金(S201408)
关键词
线要素化简
特征点
弯曲
可视
约束条件
line feature simplification
feature point
bend
visual
constraint conditions
