According to the characteristics of the high precise GPS (global positioning system) deformation monitoring,the similar single-difference mathematical model and its algorithm for solving the GPS monitor points deformation information at the single epoch is introduced in this paper.

According to the characteristics of high precision GPS deformation monitoring, based on the first period observation results of the monitoring network,and using the carrier phases of the monitoring session as the basic observations, the similar single difference model of solving GPS monitor point deformation information at a single epoch is built.

In recent years, more and more attention is paid to the graphical variable message signs (graphical VMS) in the metropolitan freeway management, which stands for the trend in VMS technology development.

The geographic graphic information analysis method and its application for land use study;

Research on graphic information and trajectory control of robots

The application feasibility and the functions of folk art colors in modern poster design were discussed to improve cultural connotation of modern poster design and from design creativity,graphic information, and character implication.

With analyzing on the DXF file structure, this paper discusses the graphical interface of CAPP and CAD, including the topics such as the data structure of CAPP, the procedure of reading the graphical information, and the post treatment of the data etc.