摘要
针对目视法无法确定使用Cesium.js建立网络三维地图中大范围模型位置参数的问题,分析了确定模型位置的主要参数及Cesium.js坐标系和建模软件坐标系间关系,提出了一种基于平面坐标转换模型的参数确定方法。该方法通过引入高斯平面坐标系,将人工采集的模型点集与地理坐标经高斯投影变换后的底图点集匹配,确定模型位置主要参数。以南京工业大学江浦校区为研究区域,实验表明该模型与底图匹配算法精度可达消费级使用标准。
To solve the problem that the position parameters of the large-scale models in 3 D web map based on Cesium.js cannot be determined by visual method.The main parameters for determining the position of the model are introduced,the relationship of the coordinate systems used by Cesium.js and modeling software are analyzed,and a parameter determination method based on plane coordinate conversion model is proposed.In this method,a Gaussian plane coordinate system is introduced,the artificially collected model points collection is matched with the base map points collection transformed by Gaussian projection,and the main parameters of the model position are determined.With Nanjing Tech University as the research area,experiments show that the accuracy of the model and base map matching algorithm can reach the stamdards of consumer use.
作者
赵黎晨
仝晓哲
ZHAO Li-chen;TONG Xiao-zhe(School of Geomatics and Technology,Nanjing Tech University,Nanjing Jiangsu 211816,China)
出处
《现代测绘》
2019年第6期5-8,共4页
Modern Surveying and Mapping
基金
南京市科技计划项目(291716027).
作者简介
第一作者:赵黎晨,硕士研究生,研究方向为GIS技术及其应用。
