<FONT face="Verdana">Visually Modeling Spatial Shape of  Rice Panicle  Based on Calculation of Bending Deformation</FONT>

DING  Wei-long,LIU  Chang,ZHANG  Yu-ping,ZHU  De-feng,ZHANG  Qian-yuan,GU  Hui

doi:10.3969/j.issn.1001-7216.2010.03.015

Chinese Journal OF Rice Science >

2010 , Vol. 24 >Issue 3: 309 - 314

DOI: https://doi.org/10.3969/j.issn.1001-7216.2010.03.015

研究报告

Visually Modeling Spatial Shape of Rice Panicle Based on Calculation of Bending Deformation

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¹College of Computer Science & Technology, Zhejiang University of Technology, Hangzhou 310014, China; ²State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; *Corresponding author, E-mail: wlding@zjut.edu.cn; zhudfcnrri@gmail.com

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2010-05-10

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Abstract

Visually simulating the geometrical shape of rice panicle is a key step to build virtual rice growth model, which can help us to better understand crop growth process. Because of its complex shape, it is quite difficult to vividly model threedimensional architecture of rice panicle. To address this issue, a new visually modeling algorithm for rice panicle structure was proposed based on bending deformation model in mechanics of material and threedimensional form of rice panicle was visually simulated. First of all, the threedimensional morphological data and the weight of rice panicle at different growth stages were measured through field experiments. And then, according to the type of rachis branches and different distributions of gravity, the curved patterns of panicle axis and various types of rachis branch were simulated with the improved model of the bending deformation and the space coordinates. Finally, the whole threedimensional shape and the growth process of rice panicle were simulated successfully in accordance with its growth laws. The experimental results show that this algorithm provides an approach to realistically modeling the threedimensional architecture of rice panicle under natural conditions.

Key words： rice; panicle; bending deformation model; visualization; modeling

Cite this article

DING Wei-long,LIU Chang,ZHANG Yu-ping,ZHU De-feng,ZHANG Qian-yuan,GU Hui . Visually Modeling Spatial Shape of Rice Panicle Based on Calculation of Bending Deformation[J]. Chinese Journal OF Rice Science, 2010 , 24(3) : 309 -314 . DOI: 10.3969/j.issn.1001-7216.2010.03.015

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