测绘学报 ›› 2024, Vol. 53 ›› Issue (6): 1013-1024.doi: 10.11947/j.AGCS.2024.20240024
刘万增1,2,3(), 王新鹏2,3(
), 赵婷婷2,3, 翟曦2,3, 李然2,3, 朱秀丽2,3, 蒋志浩2,3, 彭云璐2,3, 张晔2,3
收稿日期:
2024-01-15
发布日期:
2024-07-22
通讯作者:
王新鹏
E-mail:luwnzg@163.com;wangxinpeng0512@163.com
作者简介:
刘万增(1970—),男,博士,教授级高工,研究方向为GIS空间关系、应急制图及知识服务。 E-mail:luwnzg@163.com
基金资助:
Wanzeng LIU1,2,3(), Xinpeng WANG2,3(
), Tingting ZHAO2,3, Xi ZHAI2,3, Ran LI2,3, Xiuli ZHU2,3, Zhihao JIANG2,3, Yunlu PENG2,3, Ye ZHANG2,3
Received:
2024-01-15
Published:
2024-07-22
Contact:
Xinpeng WANG
E-mail:luwnzg@163.com;wangxinpeng0512@163.com
About author:
LIU Wanzeng (1970—), male, PhD, professor level senior engineer, majors in GIS spatial relationship, emergency mapping and knowledge service. E-mail: luwnzg@163.com
Supported by:
摘要:
针对目前人工判定碎片化地形矢量数据比例尺效率低下、可靠性不高的问题,本文提出一种基于自然法则的地形矢量数据比例尺评估方法,实现地形矢量数据比例尺判定的自动化。该方法基于不同比例尺地形矢量数据节点密度指数随比例尺变化的特征,利用自然法则原理和统计学知识确定不同比例尺、不同类型要素节点密度指数区间的理论值;对于待鉴定地形矢量数据,将其节点密度指数与已知比例尺的地形矢量数据节点密度指数区间进行比对,如果落在该比例尺节点密度指数区间内,则推断为该比例尺数据,进而实现比例尺的自动判定;最后利用等高线和水系两种地形要素验证了该评估方法的可行性。试验结果表明,基于本文方法的1∶100万、1∶25万和1∶5万地形矢量数据比例尺自动判定正确率分别达到了93.97%、94.04%和92.47%,地形矢量数据比例尺判定总体正确率达到93.21%,极大提高了比例尺判定的精度与效率,为地理信息安全评估提供了技术支撑。
中图分类号:
刘万增, 王新鹏, 赵婷婷, 翟曦, 李然, 朱秀丽, 蒋志浩, 彭云璐, 张晔. 碎片化地形矢量数据比例尺评估方法[J]. 测绘学报, 2024, 53(6): 1013-1024.
Wanzeng LIU, Xinpeng WANG, Tingting ZHAO, Xi ZHAI, Ran LI, Xiuli ZHU, Zhihao JIANG, Yunlu PENG, Ye ZHANG. Scale evaluation method for fragmented terrain vector data[J]. Acta Geodaetica et Cartographica Sinica, 2024, 53(6): 1013-1024.
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