Support For Vector Graphics, Two-dimensional, Collaborative Browsing, Annotation Technology Research

The incorporation of global economical, blast developing of high technology such as Internet, caused injection of new characterizes into the phrase of new product development, such as collaborative design and discussion of across space, subjects and departments.Based on analyzing implement technology of the collaborative view and markup on the internet, the main research contents and creative ideas of the thesis as follows:Firstly, a depth understanding of the format of DXF, the relationships between the sections, the mechanism of reading DXF files and inserting the new added elements into the files were done.Secondly, a depth understanding of plot mechanism was done. The system can realize the paint, repaint, persistent of all kinds of elements on the component.Thirdly, the framework of this system is based on B/S. It implemented collaborative viewing and markup of two dimension drawing through Java Applet technology.Fourth, the system was being integrated with MAS. Reliability, real time and concurrency of messages were ensured. The problem of right control and meeting review were resolved.Fifth, a mail server was included. The system could send the meeting conclusion to all the team members by using the package of Java mail.The system of the collaborative view and markup is implemented at the end of this thesis. It's a useful tool to the designers.