解析几何求交之直线与二次曲面 eryar@163.com   Abstract. OpenCASCADE provides the analytic intersection between a conic and a quadric in the package IntAna. Key Words. Analytic ...

OpenCASCADE PCurve of Topological Face eryar@163.com Abstract. OpenCASCADE provides a class BRepBuilderAPI_MakeFace to build topological faces. A face maybe built from a surface, e...

A Simple OpenGL Shader Example II eryar@163.com Abstract. The OpenGL Shading Language syntax comes from the C family of programming languages. Tokes, identifiers, semicolons, nesti...

OpenCASCADE DataExchange DWG eryar@163.com Abstract. DWG is a file format created in the 70’s for the emerging CAD applications. Currently it is the native file format of AutoCAD,...

1 Introduction 曲线上有一些特殊点会影响曲线的连续性，如重点（Multiple Point）、尖点（Cusp Point）、拐点（Inflection Point）等。一般称曲线上凸弧和凹弧的分界点称为拐点。 图1 曲线极值...

OpenCASCADE的编译  The Installation and Compilation of OpenCASCADE eryar@163.com   一、 安装OpenCASCADE 可以从OpenCASCADE的官网上下载其安装...

OPEN CASCADE Multiple Variable Function eryar@163.com Abstract. Multiple variable function with gradient and Hessian matrix is very very import in OPEN CASCADE optimization algorit...

OpenCASCADE Shape Location eryar@163.com Abstract. The TopLoc package of OpenCASCADE gives resources to handle 3D local coordinate systems called Locations. A Location is a co...

OpenCascade BRep Format Description eryar@163.com 摘要Abstract：本文结合OpenCascade的BRep格式描述文档和源程序，对BRep格式进行分析，详细说明BRep的数据组织形式。结合源程序，可以对Ope...

OpenCascade Law Function eryar@163.com 1.Introduction 在OpenCASCADE的TKGeomAlgo Toolkit中提供了一个Law Package，在Law包中有一个基类：Law_Function，字面上翻译为 规则函数。其类图如下...

Netgen mesh library : nglib eryar@163.com 摘要Abstract：本文主是对Netgen的库nglib的用法进行介绍。主要参考资料是Netgen用户指南。最后给出一个具体程序实例。  关键字Key Words：Net...

Visulalize Boost Voronoi in OpenSceneGraph eryar@163.com Abstract. One of the important features of the boost polygon library is the implementation of the generic sweepline algorit...