Visualization And Improvement Of Graphical User Terminal System For High Speed Train Digital Simulation Platform

With the rapid development of computer simulation technologies,more and more simulation software with graphical interface are used in various fields of research and application.At the same time,higher visualization technologies are required in simulation software.Most of the existing simulation-software adopts GDI or GDI+technology when they create graphical modeling of simulation system,and can only use CPU to the graphical modeling,and can't use GPU acceleration,resulting in low efficiency,and poor graphics rendering perfor-mance.In addition,when building a complex model,it is prone to a pile of n-umber of modules and lines,greatly reducing the user experience.The user-end software for the high-speed train digital simulation platform also exists following defects:(1)The efficiency of drawing is very low,the effect of graphic display is not good,and the phenomenon of tailing and stagging is easy to occur.(2)For complex system model,the layout is confusing,and a large number of modules and lines are piled up,increasing the complexity of construction for the system model.(3)The functions of software are not perfect and the degree of visualization is low.This thesis takes the high-speed train digital simulation platform as the research background.Based on the analysis of the problems existed in the user-end software,plans of improvement for the graphical system modeling are provided.Direct2 D,the latest graphics rendering technology,is applied to display the task module and the relationship between the task modules,edit the properties of the module and the relationship between the modules,then quitely improve the drawing efficiency and rendering effect of the module.Through modules merging,a good solution for simplifying the simulation model is provided;through module highlighting and multi-format graphical display,visualization of the user-end is also effectively improved.This thesis firstly introduces the research background and significance of the user end software,the research status at home and abroad,and the main research work,and then carrys out a demand analysis,including the improvement of objectives,functionaland non-functional requirement;on this basis,the user-end software is improved and redesigned.Finally,the improved user-end software is tested and the results of the test are analysed.Meanwhile,summary and outlook of this work are made,defects and the next research work are also given.