x光分析用极射标准投影图除立方晶系外其他晶系尚无人制做。为满足x光分析的需要,我们曾用晶面夹角的关系,用尝试法做过YAP和LiYF_4的常用低指数晶面的部分极射投影图。只能做定向时参考。关于单晶定向技术,国外已提出一些用电子计算机绘制极射标准投影图和劳厄照片的方法。清华大学潘金生老师,用旋转倒易坐标系原理,编成二套电子计算机程序。其一,直接分析单晶劳厄及电子衍射谱。其二,用电子计算机自动模拟描绘标准图。这种自动绘制标准图的程序,可以自动绘制任意晶系、任意投影中心的心射和极射投影,任意入射方向的 X-ray analysis of polar standard projection with the exception of other crystal system outside the crystal system is still not made. In order to meet the needs of x-ray analysis, we have used the relationship between the crystal plane angle, and tried to do partial polar projection of commonly used low index crystal planes of YAP and LiYF_4. Can only do directional reference. About single crystal orientation technology, some foreign countries have put forward some methods for drawing polar standard projection pictures and Laue photographs by using electronic computers. Mr. Pan Jinsheng, Tsinghua University, with the principle of rotating reciprocal coordinate system, compiled two sets of computer programs. First, direct analysis of single crystal Laue and electron diffraction. Second, the computer automatically simulates the drawing of standard drawings. This automatic drawing standard program can automatically draw any crystal system, any projection of the center of the projection and polar projection, the direction of any incident