计算机仿真
計算機倣真
계산궤방진
COMPUTER SIMULATION
2009年
12期
205-208,319
,共5页
虚拟植物%光线跟踪%蒙特卡罗方法%面向对象
虛擬植物%光線跟蹤%矇特卡囉方法%麵嚮對象
허의식물%광선근종%몽특잡라방법%면향대상
Virtual plant canopy%Ray tracing%Monte carlo method%Object-oriented
研究光在虚拟植被冠层中的辐射传输特性,是虚拟植物研究的一个难点和关键点.为了利用计算机仿真虚拟冠层中的光辐射传输过程,面向对象技术设计了一个虚拟冠层光辐射传输仿真系统(VPCRTS),采用基于混合式八叉树空间剖分技术的蒙特卡罗光线跟踪算法对光在植被冠层内的辐射传输过程进行了仿真.VPCWTS以一种可视化的直观方式展现了整个辐射传输过程,可以针对冠层的不同散射模型进行仿真和对比.VPCRTS系统仿真的结果具有一定的物理可靠性,为研究光在植被冠层中的辐射传输特性提供了一有效的工具.
研究光在虛擬植被冠層中的輻射傳輸特性,是虛擬植物研究的一箇難點和關鍵點.為瞭利用計算機倣真虛擬冠層中的光輻射傳輸過程,麵嚮對象技術設計瞭一箇虛擬冠層光輻射傳輸倣真繫統(VPCRTS),採用基于混閤式八扠樹空間剖分技術的矇特卡囉光線跟蹤算法對光在植被冠層內的輻射傳輸過程進行瞭倣真.VPCWTS以一種可視化的直觀方式展現瞭整箇輻射傳輸過程,可以針對冠層的不同散射模型進行倣真和對比.VPCRTS繫統倣真的結果具有一定的物理可靠性,為研究光在植被冠層中的輻射傳輸特性提供瞭一有效的工具.
연구광재허의식피관층중적복사전수특성,시허의식물연구적일개난점화관건점.위료이용계산궤방진허의관층중적광복사전수과정,면향대상기술설계료일개허의관층광복사전수방진계통(VPCRTS),채용기우혼합식팔차수공간부분기술적몽특잡라광선근종산법대광재식피관층내적복사전수과정진행료방진.VPCWTS이일충가시화적직관방식전현료정개복사전수과정,가이침대관층적불동산사모형진행방진화대비.VPCRTS계통방진적결과구유일정적물리가고성,위연구광재식피관층중적복사전수특성제공료일유효적공구.
The study of the characteristics of light radiation transfer in virtual plant canopies is a difficult and critical point in virtual plant canopy study. In order to use the computer to simulate the light radiation transfer in vir-tual plant canopy, an object-oriented virtual plant canopy radiation transfer simulating system (VPCBTS) is de-signed. An octree based Monte Carlo ray tracing method is used to simulate the process of light radiation transfer in plant canopy. VPCBTS presents the whole simulation process through an intuitive visible way. Also, VPCBTS has the ablity of setting different scattering models of the plant canopy and comparing the different simulation results. The system is an effective tool for studying the characteristics of light radiation transfer in plant canopies, and its simula-tion results are reliable.
