张古彬,禄丰年,曾涛,王金鑫,赵光成

• 1:河南省地质调查院
• 2:河南省地质矿产勘查开发局
• 3:郑州大学地球科学与技术学院

摘要(Abstract)：

针对原有球体测地线八叉树网格(SGOG)编码存在的长而无序、不适宜径向大尺度地理空间剖分、与OSG模型渲染机制不能很好兼容的缺陷,该文提出了修正SGOG编码方案。该方案严格遵守SGOG编码模型,修改了编码的方法与次序,精简了编码长度,优化了内涵结构,面向整个地球系统空间的剖分,方便后续的建模处理;在上述基础上,设计并实现了修正SGOG编码与空间直角坐标的相互转换算法,进而以空间直角坐标为中介,实现了修正SGOG编码到地理坐标系的换算。研究结果表明,修正SGOG编码方法可以很好地解决原编码方式的缺陷,提升了建模的效率与效果,有利于推动SGOG的进一步应用。

关键词(KeyWords)： 地球剖分网格;地球系统空间网格;球体测地线八叉树网格;四元三角网;编码;坐标转换

Abstract:

Keywords:

基金项目(Foundation): 河南省科技攻关项目(152102210031);; 河南省高等学校基础研究计划重点科研项目(16A170003);; 地理空间信息与数字技术国家测绘地理信息局工程技术研究中心开放基金项目(SIDT2017501);; 河南省地质矿产勘查开发局2018年财政规划项目(豫地矿2018030)

作者(Author): 张古彬,禄丰年,曾涛,王金鑫,赵光成

DOI: 10.16251/j.cnki.1009-2307.2020.11.022

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