几何造型器

几何造型系统是指能够定义、描述、生成几何模型,并能够进行交互编辑处理的系统称为几何造型系统。采用几何造型技术,可以将物体的形状及其各种属性存储在计算机内,形成该物体的几何模型。这样的几何模型是对原物体确切的数学表达,或对其某种状态的真实模拟。
OpenCascade Shape Representation in OpenSceneGraph-卡核

OpenCascade Shape Representation in OpenSceneGraph

OpenCascade Shape Representation in OpenSceneGraph eryar@163.com 摘要Abstract:本文通过程序实例,将OpenCascade中的拓朴数据(边、面)离散化后在OpenSceneGraph中进行显示。有了这些离散...
OpenCascade HLR for Pipe Model-卡核

OpenCascade HLR for Pipe Model

OpenCascade HLR for Pipe Model eryar@163.com 摘要Abstract:在工厂辅助设计(Plant Design)或船舶辅助设计(Ship Design)等CAD设计软件中建完模型后都会出安装图或制作图,这也是这类辅助...
Netgen mesh library : nglib-卡核

Netgen mesh library : nglib

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...
OpenNURBS to OpenCASCADE-卡核

OpenNURBS to OpenCASCADE

OpenNURBS to OpenCASCADE eryar@163.com Abstract. The OpenNURBS initiative provides CAD/CAM/CAE and computer graphics software developers the tools to accurately transfer 3D geometr...
Locations Section of OpenCascade BRep-卡核

Locations Section of OpenCascade BRep

Locations Section of OpenCascade BRep 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。本文主要通过对BRep...
清华笔记:计算共形几何讲义 (19)离散曲面曲率流 (Discrete Surface Ricci Flow ) I-卡核

清华笔记:计算共形几何讲义 (19)离散曲面曲率流 (Discrete Surface Ricci Flow ) I

【上课时间:每周二和周四上午9:50-11:20AM;地点:清华大学,近春园西楼三楼报告厅。欢迎任何有兴趣的朋友,前来旁听指导。】图1. 曲面单值化定理:所有带度量的封闭曲面都可以保角地映到三种...
Open CASCADE Technology testing dataset is published!-卡核

Open CASCADE Technology testing dataset is published!

Open CASCADE Technology (OCCT) testing dataset is published on the renovated developer portal.We’ve received several requests from the users interested in the opportunity to ...
Clash Detection-卡核

Clash Detection

Clash Detection eryar@163.com Abstract. Clash detection is used for the model collision check. The paper introduce the clash detection in PDMS, and also about how to set the piping...
使用Gmail邮箱-卡核

使用Gmail邮箱

由于国内不能直接访问google,所以其相关产品也不能直接使用。因为Gmail简洁,使用方便,国际上用的人很多。最近发现网易邮箱大师可以直接访问Gmail,所以将方法介绍给大家,如果大家只有访问Gm...
OpenCASCADE7.3.0 is available for download-卡核

OpenCASCADE7.3.0 is available for download

OpenCASCADE7.3.0 is available for download OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 7.3.0). Open CASCADE Technology version 7.3....
Levmar:Levenberg-Marquardt非线性最小二乘算法-卡核

Levmar:Levenberg-Marquardt非线性最小二乘算法

Levmar:Levenberg-Marquardt非线性最小二乘算法 eryar@163.com Abstract. Levmar is GPL native ANSI C implementations of the Levenberg-Marquardt optimization algorithm.The blog focus on...
Topology and Geometry in OpenCascade-Edge-卡核

Topology and Geometry in OpenCascade-Edge

Topology and Geometry in OpenCascade-Edge eryar@163.com 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...