Research And Realization Of Parametric 3D-Modeling Tombstone System Based On ObjectArx

Most of the stone products made in Fujian are Japanese style tombstone products, at the same time, the Japanese style tombstone products are quite difficult to design. From now on, most of the stone factories in Fujian have a lot of problems in the product design areas. Not only the design speed is slow, but also the standard can not be an interface. This thesis aims at the problem than in a stone company in the design area, we build the 3D-Modeling system to solve this kind of problem so as the stone company can communicate with the international stone market.We investigated the feature of Japanese tombstone product model (for example, lotus flower model), and presented the approach of Parametric-Modeling for the Japanese tombstone products with the Parametric-Design based on construction. Through the research on the customer's requirements, we completed the requirement analyses of the tombstone product system. Through the research on the architectural principle of polyline, we proposed the Parametric-Definition of closed polyline and the evaluation of bugles, and therefore realized the automatic generation of the closed polyline. We proposed the Parametric-Definition of primary transform by analyzing homogeneous coordinate system, and thus obtained the Parametric-Definition of transform matrix.Through analyzing the generating methods of extrude-solid and considering the process of setting up the 3D-model, we gave the Parametric-Design of primary solid. According the requirements of the system, we made the Compiler System, Operation Control System and Solid Creating System. Through the research on the Xdata and ObjectArx, by the interface of the Autodesk Company, we built the software of the tombstone parametric 3D-model system.The algorithm presented in this paper is applied not only in tombstone model but also in the 3D model of Modern Building and other fields as well.