Field Data Model And Visualization Technology Based On Subvision

At present,spatial subdivision technology has become a research hotspot in the field of GIS,and the basic analysis and calculation technology has become more and more mature.However,the research on data visualization of spatial subdivision has not been carried out in depth.At present,the visualization technology is backward and can not meet the visual display requirements of large-scale and multi-element characteristics of spatial subdivision technology.In order to solve the above problems,this paper proposes field data modeling and visualization technology based on spatial subdivision.Research on data modeling,storage,visualization and interaction technology for field data.The innovations of this paper include the following:First,three-dimensional visual display technology of field data.Aiming at the traditional volume rendering algorithm,based on the visualization requirements of meshed data,this paper focuses on global volume rendering and irregular region constrained volume rendering.Aiming at the transfer function in volume rendering,the automatic color matching is realized by using integral color mapping and color hue ring,which greatly reduces the workload of manual configuration of color matching and color band adjustment.Second,mesh generation interactive processing technology.Realize the mouse and keyboard click selection of meshing,so that users can easily select the mesh.Realize the slice display and time axis switching function of volume rendering data,so that users can freely observe the internal data change and time evolution trend of volume rendering.Third,the typical military application demonstration of meshing.Realize the comprehensive application system of meshing,including the functions of meshing data analysis,storage,display and interaction,and realize the integrated display of meshing functions.Design a missile penetration demonstration scene in an island area.The scene contains a variety of battlefield environment elements to show the meshing computing ability in a complex dynamic environment.Realize the data calculation and scene update of various rendering targets,and finally realize the visual display of complex dynamic military scenes.