Three-dimensional Model Establishment And Application Research Of Scattered Data

Our existence of the objective world is three-dimensional.In engineering application and military technology,in order to deal,take actions,analyze its properties and obtain more useful information conveniently with three-dimensional objects,we usually adopt the method of three-dimensional reconstruction of three-dimensional objects to establish mathematical models suitable for computer environment representation and processing.The method can express the world of virtual reality.With the development of computer graphics,three-dimensional reconstruction of scattered data technology has been widely researched and applicated,and the technologies such asmodeling and visualization also have been promoted.Improve the method based on the predecessors' work,add the function of three-dimensional model segmentation and realistic based on the Delaunay triangle subdivision algorithm,using VC++ and OpenGL technology.Improve the calculation precision in the actual application and three-dimensional rendering of the model is more real.Based on the analysis and the research status of three-dimensional reconstruction technology at home and abroad,understand the development and application of relevant technology,and design the overall scheme of the research method combined with the research methods to solve the key problems.Firstly,take Delaunay triangulation to generate triangular network space according to the three-dimensional coordinates of spatial scattered points and interior points by the three dimensional interpolation method;then obtain intersection coordinates of the slicing line and triangle network combined with side chain table pointer and mathematical space equation,join the information to the point-to-point linked stored to ensure that the segmentation surface be vertical when we segment the three-dimensional model,the sum of partitioned sub-block volumes equal to the pre-segmentation volume in the final instance application,and the experimental requirement substantially are obtained;finally,add light model,blanking and texture mapping function based on the primitive triangulation grid using OpenGL graphics library powerful programming capabilities,improve the rendering effect of three-dimensional model so that the final three-dimensional model closer to the actual situation.It proves that the system runs stably tested by practical application,be perfecting the function of three-dimensional segmentation and realistic on the basis ofscattered data in three-dimensional reconstruction.And the system improves the calculation accuracy and meets the design requirements.