OpenCASCADE Rational Bezier Curves eryar@163.com Abstract. Although polynomials offer many advantages, there exist a number of important curve and surface types which cannot be rep...

Change Line Type in OpenCascade eryar@163.com   关键字KeyWords：OpenCascade,Line Aspect, Line Type   在OpenCascade的显示模块中，可以设置线型、消隐方式和离散精度等属性。这...

OpenSceneGraph in ActiveX by ActiveQt eryar@163.com Abstract. Qt’s ActiveX and COM support allows Qt for Windows developers to access and use ActiveX controls and COM objects...

Distribution of Data Through OCAF Tree OCAF数据的分配 eryar@163.com 一、作者注 Annotation 本文档主要用于说明OCAF（Open CASCADE Application Framework）中数据模型的选择问题。另外，以...

OpenCASCADE Trihedron Law eryar@163.com Abstract. In differential geometry the Frenet-Serret formulas describe the kinematic properties of a particle moving along a continuous, dif...

Convert BSpline Curve to Arc Spline in OpenCASCADE eryar@163.com Abstract. The paper based on OpenCASCADE algorithms to approximate the NURBS curve to arc spline. The method i...

OpenCASCADE 3 Planes Intersection eryar@163.com Abstract. OpenCASCADE provides the algorithm to search the intersection point between 3 planes. If two of the planes are parallel or...

Topology and Geometry in OpenCascade-Adapters eryar@163.com 摘要Abstract：本文简要介绍了适配器模式（adapter pattern），并结合程序实例对OpenCascade中的拓朴与几何的适配器的使用进行说...

OpenCASCADE点向圆柱面投影 eryar@163.com   OpenCASCADE的类Extrema_ExtPElS提供了点到基本曲面的投影计算功能，距离可能是最大值或是最小值。如下图所示的点到圆柱的投影会有两个投影点P...

BRep Shapes Based on Tessellated Geometry eryar@163.com Key Words. BRep Shape, Tessellated Geometry, Mesh, STL 1. Introduction OCCT的TopoDS允许定义只包含显示数据的BRep体，如只...

ModelDataExchange - Import eryar@163.com Abstract. The ModelDataExchange import utility enables the user to import geometric models of equipment into 3D models within Design. The i...

OpenCASCADE Face Normals eryar@163.com   Abstract. 要显示一个逼真的三维模型，其顶点坐标、顶点法向、纹理坐标这三个信息必不可少。本文主要介绍如何在OpenCASCADE的Draw中显示出曲面...