<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[learningloong的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/learningloong</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; learningloong]]></copyright><item><title><![CDATA[ACIS-Model Topology]]></title><link>https://blog.youkuaiyun.com/learningloong/article/details/37877163</link><guid>https://blog.youkuaiyun.com/learningloong/article/details/37877163</guid><author>learningloong</author><pubDate>Wed, 16 Jul 2014 14:21:50 +0800</pubDate><description><![CDATA[Model Objects
An 
entity is the most basic ACIS object. It is implemented in the C++ class 
ENTITY. All entities have a common set of functionality, such as the ability to save and restore themselv]]></description><category></category></item><item><title><![CDATA[利用ACIS、HOOPS开发三维软件]]></title><link>https://blog.youkuaiyun.com/learningloong/article/details/37876999</link><guid>https://blog.youkuaiyun.com/learningloong/article/details/37876999</guid><author>learningloong</author><pubDate>Wed, 16 Jul 2014 14:15:33 +0800</pubDate><description><![CDATA[一、 ACIS相关知识
ACIS是基于英国剑桥大学博士论文提出的边界表示法生成三维实体的理论体系而开发的三维几何造型引擎，它采用面向对象的数据结构，集线框、曲面和实体造型于一体，并允许这三种表示共存于统一的数据结构中，为各种三维造型应用系统的开发提供了几何造型平台。许多著名的CAD/CAM系统都是以ACIS作为几何内核，如Auto CAD、Turbo CAD、CADKEY等。
几何、拓扑和属性]]></description><category></category></item><item><title><![CDATA[基于ACIS/HOOPS的3D应用开发简介]]></title><link>https://blog.youkuaiyun.com/learningloong/article/details/37876855</link><guid>https://blog.youkuaiyun.com/learningloong/article/details/37876855</guid><author>learningloong</author><pubDate>Wed, 16 Jul 2014 14:11:35 +0800</pubDate><description><![CDATA[平台:       

        造型引擎——ACIS
        显示引擎——Direct3D/OpenGL/GDI
        应用框架——HOOPS
 
组件关系图


 
ACIS——造型引擎
ACIS 是美国Spatial Technology公司推出的三维几何造型引擎，它集线框、曲面和实体造型于一体，并允许这三种表示共存于统一的数据结构中，为各种3D]]></description><category></category></item></channel></rss>