Computer Program for Rock Mass Fabric Diagrams in Wulff Polar Stereonet

The method using Wulff polar stereo-net to construct a pole density diagram is discussed in detail in the paper and related computer program is also given. By a numeral example the result is compared with that from now widely used Schmidt method. This comparison shows that the plots from both methods are similar in general. Though the modified Wulff method is theoretically more precise, it's computation requires more execution time in computer than that of Schmidt method.