A novel expended lattice structure of DEM-Cell model incorporating DEM elevation information is proposed,in response to the requirements of extrapolation of trends and hazards of forest fire spread,as well as the need of route selection and real-time path optimization for rescuers.Combining vegetation attributes of meta cells with geographic elevation information,we develop a simulation and fire fighting exercise system that computing the resultant data in real time and converting it into render-able resource,which is directly used by the OSG engines.With the help of the same data structure and the corresponding key algorithms and technologies,we implement a complete set of forest fire spread simulation and firefighting drill system.Our firefighting system features high flexibility,better simulation efficiency and effectiveness,and support for various parallel computing methods,which can be widely promoted and used in related industries and systems.
关键词
火灾蔓延/实时渲染/扩展晶格模型结构/自适应寻路算法
Key words
fire spread/real-time rendering/digital elevation model-cell model/path finding
维普
万方数据