A Generation and Rendering Technique for Silhouette profiles of Quadric Surface Solid Modeling and Its Implementation In MFC

• Main Authors: Ming-Feng Chen, 陳明峰
• Other Authors: Tien-Tsung Yen
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/75416260758619352612

碩士 === 國立雲林科技大學 === 機械工程系碩士班 === 92 === Computer-aided design and manufacturing technology has held its position in the industrial world and been widely used in the fields such as mechanical engineering and aeronautical engineering. Solid modeling has become the mainstream modeling technique for computer-aided design because of its user-friendly interface , ergonomic design, and complete as well as accurate data representation . This thesis extends the outcome of previous thesis – a 91 class graduate student Lee Fu-Shean and has undergone the functional expansions based upon the framework of the original programming design. The main purpose of this thesis is to study how to generate the silhouette profiles due to the rotation of a 2D section composed of arc edges. Although Lee’s work can create a 3D solid by rotation a 2D section with arc edges about an axis , it fails to show the silhouette profiles caused by the rotation of arc edges. Therefore ,this thesis designs and develops an algorithm to achieve the silhouette display along with the relevant modification in the data representation . Thus , it becomes more realistic and comprehensible for displaying the wire frame of a 3D solid involving the revolution of arc edges. There are two main parts in this thesis. In the part of design ,it combines the theories of computer graphics, solid modeling, and object- oriented analysis and design, through encapsulation, inheritance, and polymorphism, to modify the design of a framework that is reusable and expandable to embody the display of silhouette profiles of 3D solids with arc edges.In the part of implementation, this thesis adopts Microsoft’s MFC class foundation, modifies existing class diagrams, and augments new classes to fulfill the rendering of silhouette profiles. Also, it improves the interface to satisfy the needs of expansion as well as the purpose of ergonomic consideration.