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基于辐射照度的作物冠层光分布计算系统设计(Calculation System of Light Distribution within Crop Canopy Based on Radiosity Method)
作物冠层 辐射度 光分布 模拟
2009/11/3
以玉米为例,使用C++语言和OpenGL图形函数库,在Windows平台下,开发基于辐射度-图形学结合模型(RGM)的作物冠层光分布计算系统。以相对成熟的RGM方法提取模型参数,并针对作物冠层特点对方法做适当改进。在冠层三维模型基础上,通过用户交互指定参数,可计算出冠层内每个面元的光分布状态。该系统所需模型参数少,且参数均具有较为明确的植物学和农学意义,便于与传统作物模型相结合,操作界面友好、使用...
Methodological aspects of an improvement of calculation information system in agricultural companies
cost cost management output activity production
2014/3/28
Phenomenalistic data of the development of prime costs in agriculture-oriented companies inSlovakia indicate that they have considerably increased in the main production, intracompany services and th...