垂直平面内判断待检测节点是否落在照射节点的垂直楔面内，若“是”则调用ReflectAngle函数计算反射角度和反射系数，若“否”则反射角度为0，不论是否发生反射，节点的入射角度都要赋照射节点的入射角度值.若发生后向绕射，则单独计算绕射系数，并将发生后向绕射边缘的下边界高度值赋-100以待后面程序检测判断使用。 -Vertical plane to judge whether the node to be detected radiation falls within the node of the vertical wedges, if the " Yes"　then call ReflectAngle function to calculate the reflection angle and reflection coefficient, if " No"　is reflective angle is 0, regardless of whether there reflection, node node irradiation incident angle should be assigned the value of incident angle. If after the diffraction, the diffraction coefficient calculated separately, and after the diffraction edge to the high value assigned under the boundary behind the program detects-100 to be used to judge.