Study on Visual Simulation Technology of Cunninghamia lanceolata
Morphological Characters

WU Qian; ZHANG Huai-qing; CHEN Yong-fu; LIU Min

In this paper, some applications of IFS method in trees modeling were analyzed, and with the characteristics of trees architecture, an investigation method for the trees modality data was presented. Taking Cunninghamia lanceolata as an example, an investigation was conducted in Huangfengqiao Forest Farm of Youxian, Hunan province. By analyzing the data, some input parameters including the length, diameter, elevation angle and azimuth angle of its first-level, second-level branch were obtained, in order to make up three-dimensional topology of Cunninghamia lanceolata. The Cunninghamia lanceolata modeling system based on. NET frame and DIRECTX 9.0 was established, so as the Cunninghamia lanceolata three-dimensional simulating was realized.

Study on Visual Simulation Technology of Cunninghamia lanceolata Morphological Characters

1. (Research Institute of Forestry Resource Information Techniques,Chinese Academy of Forestry,Beijing 100091, China)

Abstract: In this paper, some applications of IFS method in trees modeling were analyzed, and with the characteristics of trees architecture, an investigation method for the trees modality data was presented. Taking Cunninghamia lanceolata as an example, an investigation was conducted in Huangfengqiao Forest Farm of Youxian, Hunan province. By analyzing the data, some input parameters including the length, diameter, elevation angle and azimuth angle of its first-level, second-level branch were obtained, in order to make up three-dimensional topology of Cunninghamia lanceolata. The Cunninghamia lanceolata modeling system based on. NET frame and DIRECTX 9.0 was established, so as the Cunninghamia lanceolata three-dimensional simulating was realized.

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Reference (17)

[1]	Barnsley M F, Demko S.Iterated function systems and the global construction of fractals .Proc Roy Soc, London, 1985:243-275
[2]	李庆忠,韩金姝.基于IFS的树木形态模拟真实感的研究[J].微机发展,2005,15(7):86-92
[3]	郭继东,赵婷婷,魏小鹏. 基于IFS的虚拟自然景物生成[J]. 大连大学学报,2002,23(6):73-47
[4]	马石安,陈传波. 基于迭代函数系统的森林景物的动态模拟技术的研究[J]. 计算机工程与应用 2002,11:79-134
[5]	孙敏,马蔼乃,薛勇. 树模型的三维可视化研究[J]. 遥感学报,2002,6(3):188-193
[6]	李庆忠,韩金姝. 基于IFS的树木形态模拟真实感的研究[J].微机发展,2005,7(15):86-92
[7]	李庆忠,韩金姝. 基于IFS的树木形态模拟方法[J].计算机辅助工程,2004,13(4):20-24
[8]	刘文进. 基于迭代函数系统的树木模拟 .辽宁:辽宁工程技术大学,2005
[9]	程学珍,曹茂永,徐小平. 基于分形的自然景物描述方法研究[J]. 系统仿真学报,2007,19(21):4957-4964
[10]	祁燕,王琰,申铁成. 分形几何在三维树木建模中的应用[J]. 沈阳理工大学学报,2005,24(2):33-36
[11]	仲兰芬,王琰,程磊. 三维分形树木IFS生成算法[J]. 沈阳理工大学学报,2005,24(1):28-31
[12]	孟宪宇.测树学[M].第２版,北京:中国林业出版社,1996
[13]	臧润国,蒋有绪.热带树木构筑学研究概述[J].林业科学,1998,34(5):112-119
[14]	肖锐,李凤日,刘兆刚.樟子松人工林分枝结构的分析[J].植物研究,2006,26(4):490-496
[15]	朱万才.樟子松人工林林分三维可视化的研究 .哈尔滨:东北林业大学,2007
[16]	仲兰芬,王琰,程磊.三维分形树木IFS生成算法[J].沈阳理工大学学报,2005,24(1):28-31
[17]	魏小鹏,周运红,张建明,等.自然景物IFS建模技术研究[J].工程图学学报,2003,24(4):103-109

Study on Visual Simulation Technology of Cunninghamia lanceolata Morphological Characters

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