Projected diagram preapring system for three-dimensional object
专利汇可以提供Projected diagram preapring system for three-dimensional object专利检索，专利查询，专利分析的服务。并且PURPOSE:To promptly and easily preapre the projection drawing of a three-dimensional object by means of a ray tracing method by projecting rays from a picture element on a screen, determining a visible point by means of the cross calculation between the rays and the object, calculating the luminance value of the crossing object, making it into the luminance value of the picture element, and constituting only the changing points of the visible points. CONSTITUTION:For the three-dimensional object constructed in a system, identification data to identify each object and a surface constituting the object is applied beforehand, and a ray tracing method processing part 2 preapres a three-dimensional video from the three- dimensional object by the ray tracing method. A video data storing part 3 holds the identifica tion data of the rays passing through the picture element at every picture element in the screen set at the time of generating the three-dimensional video from the crossing object. A comparing part 4 successively comapres the identification data of the two adjecent picture elements out of the identification data, and when the two identification data are different, a boundary line extracting part 5 sets the specific luminance value at either one of the picture element. Further, the boundary lines between the objects and the surfaces are extracted, and the projection drawing is preapared. Thus, the projection drdawing of the three- dimensional object can be promptly and easily prepared by the ray tracing method.，下面是Projected diagram preapring system for three-dimensional object专利的具体信息内容。
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