The 2 - d and 3 - d dem codes are developed using c - h - programming language based on the idea of ooa ( object oriented analysis ) . a set of preprocess and postprocess code for the dem is also developed . the two codes in one become an integrative discrete element analysis system : s - dem ( super - discrete element method ) 該計算程序與用opengl技術(shù)在vc + + 6 . 0環(huán)境下開發(fā)的功能強大的離散元前后處理程序構(gòu)成了較為完整的離散元分析模擬系統(tǒng)s - dem ( super - discreteelementmethod ) 。