The Development Of Drawing Platform And Realization Of Homework Auto-Checking Function

"Civil Engineering Drafting Online Homework System " is a set of intelligent, open and multi-level remote operating systems on the basis of Internet, this system plans to realize that course managed, course design , homework auto-check , and a series of functions , such as answering questions , automatic group examination paper , online examination , homework performance statistical analysis ,etc.As a sub subject,this paper will study drawing platform development and homework auto-checking base on drawing platform .This paper has discussed the question existing in the course teaching that" Civil Engineering Drafting" at first, it is analysed that the domestic similar drawing platform and homework auto-check.the current situation of software development, have proved the possibility and necessity of studying a subject.Carry on the demand the drawing platform in terms of soft project and is analysed and designs overallly. Regard platform function of the graphics as and divide , has described the development course of the platform in detail . That drawing function of the drawing platform, auxiliary drawing function , graphics editting function , screen operated function , graphics mark function have been made an introduction, and in this paper has discussed especially about some key algorithms involved in those functions. Make an introduction to the optimization tactics of the drawing platform in addition.Through analysing to the present commonly used auto-checking method of homework, chose the contrasting method as this subject used. It is discussed that the homework auto-checking the problem met and settlement method, correct by procedure homework,homework correct is divided into for pre-dealing , homework correcting and post-treatment. Divide the topic answer into different types, offer different tactics of correcting to these types, expound the fact that realizes these algorithms involved of tactics, and prove with the example that these correct exactness of the tactics. Have discussed the fuzzy discernment among oval arc and spline curve, spline curve and spline curve especially.The research that development of homework auto-check software and the drawing platform is an extremely complicated project, need to invest a large amount of time and energy. I have carried on the elementary discussion and studied aboutthese two respects in the subject, have offered the thinking for perfecting this subject further.