| With development of science and technology are widely used in the arious electronic equipment in the new century, electromagnetic compatibility have increasingly become a problem that must be taken into account about national defense, scientific research, production and life. The problem of influence on people's lives between electronics componentsand the electromagnetic interaction and electro -agnetic radiation between the various components urgently need a better solution.The development of computer technology, the popularity of computers and the mature technology of second, three-dimensional graphics, the ectromagnetic compatibility analysis through the establishment of its computer models of electronic products has become a trend.In this article, we study on the model display ang editing technique of"EMC analysis software of communication vehicle",the main contains as the following:1. Since the original communication vehicle EMC analysis software is not perfect in some functions, the problem such as the antenna model and vehicle model can not be displayed at the same time, we can complete this function by the data stream redirection, data structure design and logical relation between the various modules,this can further reflect the interactive graphics software intuitive, real-time and dynamic design requirements;2. Mmodel editing module based on OpenGL environment of MFC is a new module, this module mainly includes model transferring (translation, rotation, scaling, partial zoom, etc.), model editing (surface panel pick-up, endpoint, midpoint , arbitrary capture, etc.), model draw, l display and memory operations, we can eventually form a model editing module software, This is the core part of the a visual modeling software and can greatly improved modeling's interactivity and usability.Software testing show that the model shows and editing module that researched in this article has a high degree of utility, ease of use.
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