Finding feasible mold parting directions using graphics hardware
نویسندگان
چکیده
منابع مشابه
Finding Mold-Piece Regions Using Computer Graphics Hardware
An important step in the mold design process that ensures disassembly of mold pieces consists of identifying various regions on the part that will be formed by different mold pieces. This paper presents an efficient and robust algorithm to find and highlight the mold-piece regions on a part. The algorithm can be executed on current-generation computer graphics hardware. The complexity of the al...
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We consider the problem of whether a given geometry can be molded in a two part, rigid, reusable mold with opposite removal directions. We describe an efficient algorithm for solving the opposite direction moldability problem for a 2D “polygon” bounded by edges that may be either straight or curved. We introduce a structure, the normal graph of the polygon, that represents the range of normals ...
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On the basis, of the condition for demouldability, two levels of visibility, complete and partial visibility, are defined. The viewing directions from which a surface is completely visible can be represented as a convex region on the unit sphere called the visibility map of the surface. Algorithms are given for dividing a given object into pockets, for which visibility and demouldability can be...
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Throughout most of this book, the focus has been on the fundamentals underlying computer graphics rather than on implementation details. This chapter takes a slightly different route and blends the details of using graphics hardware with the practical issues associated with programming that hardware. This chapter, however, is not written to teach you OpenGL,TMother graphics APIs, or even the ni...
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ژورنال
عنوان ژورنال: Computer-Aided Design
سال: 2006
ISSN: 0010-4485
DOI: 10.1016/j.cad.2006.01.008