Design And Implementation Of Road Traffic Accident Scene Mapping System

With the rapid development of social economy,the rapid increase of motor vehicles,road traffic accidents are increasing year by year.How to carry out road traffic scene investigation is an important part of road traffic accident scene investigation.This paper is based on the existing traffic accident scene drawing system,which is often used in rendering speed,accuracy and fault data management.The research of computer technology,GIS technology,GPS technology,database technology,a set of traffic accident scene drawing system can be realized.Before the development of the system,the system has been analyzed by using the three aspects of the user,data and function of the system.Through the function design,the system is divided into the graphic drawing system,the exploration record system and the road template extraction subsystem.The data exchange between several subsystems through the pre designed data exchange mode to achieve data sharing.Then,research on the mathematical model of the drawing and rendering in MFC mode.According to the object-oriented design idea,the basic graphics rendering class is designed,which is based on the module function and type,which lays the foundation for the function realization of the follow-up service system.The paper studies the MFC file operation,database operation,serial data communication technology,and realizes the function of the module.Finally,on the basis of the realization of each module,the system main program is developed and implemented based on the MFC framework.