Application Of Graphic Programming In Virtual Reality Exploring Laboratory

Exploring laboratory is an auxiliary education system which is newly born in the digital process of the science laboratory teaching in the middle school in the background of a new curriculum reform and under the instruction of the new curriculum standard. Exploring laboratory, which provides necessary exploring tools for the students, is considered the key of further reforming and improving the teaching quality, and has now been widely used in many schools. Exploring laboratory adopts multimedia and digital measuring technologies, uses the system used to perform exploring experiment in physics, chemistry and biology on the base ofthe computer-platform. It support the environment in which students perform exploring studies in many ways in the new curriculum reform and creates an exploring environment that faces the reality with a sensor and data collection. This paper, from the perspective of the present exploring laboratories, by combining the technologies of virtual display and educational skills and with the graphic programming, introduces the virtual reality technology to the traditional exploring laboratory. It solves many difficulties in the realization process such as the setting-up of the virtual scene and the usage of the educational skills. It also tries to display the data collected from the exploring experiments from the teaching perspective.First, the paper describes the development background of the virtual reality exploring laboratory system and the status of the virtual reality exploring laboratory system at home and abroad, analyses the requirement, gives a general idea of the virtual reality exploring laboratory system and elaborates the development model adopted by the program. The requirement analysis is divided into functional requirement and non-functional requirement, and the former one is elaborated by use case. Based on the requirement analysis, we make a general design of the system and ensure the integral structure and core function of the system by designing the general structure, functional structure and controlling flow. Detailed introductions of the key sub-functional models of the system are also given. Besides, the system data testing and the procedure is given and analysis of the testing results is made.Finally, we make a conclusion on the application of the graphic programming in the virtual reality exploring experimental system and put forward some suggestions for the further development of the system.