【摘要】 为了计算γ线穿透屏蔽物体的衰减量,需将屏蔽体划分为各自材料相同的几个区域。每个区域可用逻辑运算记号所连接的基本几何形状来描述。该可视化仿真程序用OpenGL编程,首先用空间座标变换法对基本几何形状建模,然后使用一种特殊的补缀法绘制交线截面,从而对用逻辑运算记号所描述的屏蔽体实现可视化仿真。该程序对(-)逻辑运算记号所连接的几何形状采用线模式来绘制,并采用混合技术处理使这个区域里层的不透明物体和外层的半透明物体都能显示出来。更多还原

【Abstract】 In order to calculate the attenuation of gamma - ray passed through shield configurations, the shield configuration has been divided into some zones according to their materials. Every zone has been described by some basic geometry connected with logical operator symbols. The visual simulation programs are written by OpenGL. First some basic geometry have been modeled by space alternate coordinate, and then a special patch method has been developed for rendering the cross section, so the simulation of shield configuration described by logical operator symbols has been realized. In the program, the geometry connected with logical operator symbol( - )is drawn in wire model. The interior construction of the zone can be displayed by blend method.更多还原