OPEN CASCADE

摘要： Abstract. BRep is short for Boundary Representation. Boundary Representation gives a complete description of an object by associating topological and geometric information for solid modeling. In this case, objects are described by their boundaries. There are two types of information in BRep: Topological information and Geometric information. This paper is concerned with the Torus BRep in OpenCascade, and also show how to use Tcl script to dump torus BRep info. Key words. OpenCascade, BRep, B 阅读全文

摘要： Abstract. BRep is short for Boundary Representation. Boundary Representation gives a complete description of an object by associating topological and geometric information for solid modeling. In this case, objects are described by their boundaries. There are two types of information in BRep: Topological information and Geometric information. This paper is concerned with the Cylinder BRep in OpenCascade, and also show how to use Tcl script to dump cylinder BRep info. Key words. OpenCascade, BR 阅读全文

摘要： Abstract. BRep is short for Boundary Representation. Boundary Representation gives a complete description of an object by associating topological and geometric information for solid modeling. In this case, objects are described by their boundaries. There are two types of information in BRep: Topological information and Geometric information. This paper is concerned with the sphere BRep in OpenCascade, and also show how to use Tcl script to dump sphere BRep info. Key words. OpenCascade, BRep, 阅读全文

摘要： Abstract. BRep is short for Boundary Representation. Boundary Representation gives a complete description of an object by associating topological and geometric information for solid modeling. In this case, objects are described by their boundaries. There are two types of information in BRep: Topological information and Geometric information. This paper is concerned with the Box BRep in OpenCascade, and also show how to use Tcl script to dump box BRep info. Key words. OpenCascade, BRep, Bounda 阅读全文

摘要： 摘要Abstract：本文简要介绍了几何造型中的边界表示法（BRep），并结合程序说明OpenCascade中的边界表示的具体实现，即拓朴与几何的联系。对具有几何信息的拓朴结构顶点（vertex）、边（edge）、面（face）进行了详细说明。本文通过ACIS与OpenCascade进行对比来对拓朴（Topology）的概念进行说明。并通过示例程序，说明如何在OpenCascade中取得与一个拓朴对象相连的其他拓朴对象，包括父对象和子对象。 　　关键字Key Words：OpenCascade、ACIS、BRep、Topology、Geometry 阅读全文

摘要： 摘要Abstract：本文简要介绍了几何造型中的边界表示法（BRep），并结合程序说明OpenCascade中的边界表示的具体实现，即拓朴与几何的联系。对具有几何信息的拓朴结构顶点（vertex）、边（edge）、面（face）进行了详细说明。本文仅对面（Face）进行说明。 　　关键字Key Words：OpenCascade、BRep、Topology、Geometry、Face 阅读全文

摘要： 摘要Abstract：本文简要介绍了几何造型中的边界表示法（BRep），并结合程序说明OpenCascade中的边界表示的具体实现，即拓朴与几何的联系。对具有几何信息的拓朴结构顶点（vertex）、边（edge）、面（face）进行了详细说明。本文只对拓朴边数据进行说明，着重介绍了OpenCascade中两个种特别的边缝合边（seam edge）和退化边（degenerated edge）。 　　关键字Key Words：OpenCascade、BRep、Topology、Edge、Geometry 阅读全文

摘要： 摘要Abstract：本文简要介绍了几何造型中的边界表示法（BRep），并结合程序说明OpenCascade中的边界表示的具体实现，即拓朴与几何的联系。对具有几何信息的拓朴结构顶点（vertex）、边（edge）、面（face）进行了详细说明。本文只对顶点数据进行说明。 　　关键字Key Words：OpenCascade、BRep、Topology、Geometry 阅读全文

摘要： Abstract. 本文通过给出曲面上曲线PCurve的定义来对OpenCascade中的Curve On Surface进行理解，并介绍了OpenCascade对应的类BRep_CurveOnSurface实现。通过Tcl脚本输出的球的拓朴信息，分析PCurve的实际应用。 　　Key words. OpenCascade, ACIS, PCurve, Curve on Surface, Parametric Surface 阅读全文

摘要： Abstract. This paper is concerned with parametric curves and surfaces definitions, such as singular point and regular point and their application in OpenCascade. The two most common methods of representing curves and surfaces in geometric modeling are implicit equations and parametric functions. Successful geometric modeling is done using both techniques. When you use parametric functions to represent curves and surfaces, you need to pay attention for the characteristic of it, such as singularit 阅读全文