太阳轨迹空间连续性的日照分析算法优化Optimization of sunlight analysis algorithm based on the spatial continuity of solar orbit
张驰,李佳,周侗,陶菲
摘要(Abstract)：
针对日照分析模拟必须考虑众多真三维地形/地物的遮挡因素,传统的日照分析方法难以在现实世界的复杂地理场景中得出高效、准确分析结果的问题展开研究,基于太阳运行轨迹的空间连续性,利用数据缓存方法对遮挡图元进行预判,实现了日照分析算法的优化。应用实例表明,将该方法与空间划分方法配合使用,可以在保证运算结果正确的基础上,进一步提高日照分析的计算效率,从而实现复杂地理场景中准确、快速的日照分析计算。
关键词(KeyWords)： 日照分析;日照时数;空间连续性;数据缓存
基金项目(Foundation): 国家自然科学基金青年科学基金项目(41501422);; 江苏省测绘科研项目(JSCHKY201406);; 南通市科技项目(BK2014058,BK2014023)
作者(Author): 张驰,李佳,周侗,陶菲
DOI: 10.16251/j.cnki.1009-2307.2017.09.032
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