The Research Of Drawing PERT Charts

Network program technique is a new program technique in American in fifties. It give expression to arrange program through network picture, arid select the best program scheme through it, organize, harmonize and control the rate of progress and expenditure of the work, make it get to the anticipative target. So, network program technique is a scientific administration method. Lately , the new program technique gets comprehension application increasingly, win well compelling effects.At present, there are hundreds of software tools in item manage, but thes e software don't solve the problems about drawing the network picture, major problems as follows:(1) The function of arrange dots isn't strive, arrange dots by human mostly;(2) Drawing super-bigness network picture can't be competent for outputting picture.Particularly, problems are outstanding in grass roots without plotting instrument.The target of the item lies to select the technique of the function of arrange dots and outputting leaf by leaf, The function of arrange dots, make it valuable. In order to the target, we need research the problem as follows;The study of the algorithm of the function in arranging dots in double-dotted network picture; study of network picture editor; study of drawing network picture leaf by leaf.The peculiarity of algorithm in this thesis lies the rapid speed of arrange dots, short of cross, arrow lines symmetrical. The method of outputting leaf by leaf makes users th depend on equipment to fall greatly.It can solve the major technical problems in using the PERT method Accomplishing the item, and it can offer the stable technical base, can offer technical support, can enhance competition in market for corporation in furious marketable competition.