• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Computers and information in engineering conference >COMBINING 3D SIMULATION TECHNOLOGY WITH OBJECT-ORIENTED DATABASES: A DATABASE ORIENTED APPROACH TO VIRTUAL REALITY SYSTEMS
【24h】

COMBINING 3D SIMULATION TECHNOLOGY WITH OBJECT-ORIENTED DATABASES: A DATABASE ORIENTED APPROACH TO VIRTUAL REALITY SYSTEMS

机译：将3D仿真技术与面向对象数据库结合起来：虚拟现实系统的数据库导向方法

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Using object-oriented databases as the primary data source in VR applications has a variety of advantages, but requires the development of new techniques concerning data modeling, data handling and data transfer from a Virtual Reality system's point of view. The many advantages are outlined in the first part of this paper. We first introduce versioning and collaboration techniques as our main motivation. These can also be used in the traditional file based approach, but are much more powerful when realized with a database on an object and attribute level. Using an object-oriented approach to data modeling, objects of the real world can be modeled more intuitively by defining appropriate classes with their relevant attributes. Furthermore, databases can function as central communication hubs for consistent multi user interaction. Besides, the use of databases with open interface standards allows to easily cooperate with other applications such as modeling tools and other data generators. The second part of this paper focuses on our approach to seamlessly integrate such databases in Virtual Reality systems. For this we developed an object-oriented internal graph database and linked it to object-oriented external databases for central storage and collaboration. Object classes defined by XML data schemata allow to easily integrate new data models in VR applications at run-time. A fully transparent database layer in the simulation system makes it easy to interchange the external database. We present the basic structure of our simulation graph database, as well as the mechanisms which are used to transparently map data and meta-data from the external database to the simulation database. To show the validity and flexibility of our approach selected applications realized with our simulation system so far e. g. applications based on geoinformation databases such as forest inventory systems and city models, applications in the field of distributed control and simulation of assembly lines or database-driven virtual testbeds applications for automatic map generation in planetary landing missions are introduced.
机译：使用面向对象的数据库作为VR应用中的主要数据源具有各种优点，但需要开发关于数据建模，数据处理和数据传输的新技术，从虚拟现实系统的角度来看。本文的第一部分概述了许多优点。我们首先介绍版本控制和协作技术，作为我们的主要动机。这些也可以用于基于传统的文件的方法，但在对象和属性级别的数据库中实现了更强大。使用面向对象的数据建模方法，通过将适当的类与其相关属性定义适当的类，可以更直观地建模现实世界的对象。此外，数据库可以用作中央通信集线器，以实现一致的多用户交互。此外，使用具有开放式接口标准的数据库允许轻松配合其他应用程序，例如建模工具和其他数据发生器。本文的第二部分侧重于我们的方法，可以在虚拟现实系统中无缝集成此类数据库。为此，我们开发了一个面向对象的内部图形数据库，并将其链接到面向对象的外部数据库，用于中央存储和协作。由XML数据模式定义的对象类允许在运行时轻松地在VR应用程序中集成新的数据模型。仿真系统中的一个完全透明的数据库层使得易于互换外部数据库。我们介绍了模拟图数据库的基本结构，以及用于将数据和从外部数据库透明地图数据和元数据透明地图数据库的机制。为了显示我们的仿真系统到目前为止实现了我们的仿真系统的方法的有效性和灵活性。 G。介绍了基于地理信息数据库的应用程序，如森林库存系统和城市模型，在行星着陆任务中的分布式控制和数据库驱动的虚拟测试平台生成的分布式控制和数据库驱动的虚拟测试应用程序中的应用程序。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号