Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 17 Issue 6
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- Pages.1372-1380
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- 1993
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- 1225-5963(pISSN)
DOI QR Code
Generation of Trimmed Surfaces in a Surface Modeling System
곡면모델러에서의 트리밍곡면 생성
Abstract
Surface trimming is an essential function in a surface modeler for representing multi-boundary surfaces, blended surfaces, and surfaces with islands or pockets. A procedure and a data structure for designing trimmed surfaces were developed. For generating a trimmed surface, edges (curves difined on a surface) are generated and trimmed first. Then the trimmed edges are selected sequentially to form a closed loop. The data of supporting surface, surface on which the trimmed surface is defined, and bounding edges are stored and used for the application such as NC programming, robot programming, graphic display, etc.
본 연구에서는 당 연구실에서 개발한 곡면모델러인 CASSET(computer aided sculptured surface engineering tool)에 구현된 트리밍기능을 중심으로 트리밍곡면의 생성방법을 설명하고자 한다. 먼저 CASSET에서 곡선 및 곡면을 표현하는 방법과 곡면 위에 존재하는 곡선의 생성방법 및 곡선간의 교점을 구하는 방법을 설명하고 곡선의 트리밍 절차를 통하여 트리밍곡면의 전반적인 생성절차를 보이겠다.
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