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Description: 基于网络环境的3D GIS空间数据模型研究基于网络环境的3D GIS空间数据模型研究
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Size: 127794 |
Author: 夏恬 |
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Description: 3D应用,三维地图演示系统，包含OPEN GL功能,GIS演示。-3D applications, 3D map presentation systems, including OPEN GL functionality, GIS demonstration.
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Size: 1184574 |
Author: 恶一一 |
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Description: 文回顾与评述了三维GIS的相关发展情况，探讨了三维GIS的有关基本问题，如数据获取、大数据量存贮与处理、三维空间分析，同时指出科学计算可视化、数据库系统管理、数字影象处理等技术的成熟和二维GIS长期发展提供的理论实践经验等为三维GIS的发展提供了良好的基础。最后为三维GIS实际系统的开发提出了几个值得注意的要点。-In this paper,the review and comment on the development of 3 dimension GIS are first made.Then the basic aspects about 3D GIS,such as data acquisition,storing and processing of mass data,analysis of 3D space,are discussed.Meanwhile, it points out that the techniques such as scientific computation visualization,database system management and digital image processing,and theories and experiences provided by development of 2D GIS offer a better platform form the development of 3D GIS.Finaally,some key points in developing practical system of 3D GIS is proposed.
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Size: 9145 |
Author: 王哲 |
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Description:
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Size: 1024 |
Author: 张三 |
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Description: VRMap 2.X 产品系列是北京灵图软件技术有限公司拥有完全自主知识版权的核心技术国际领先的三维地理信息系统平台软件，可以在三维地理信息系统与虚拟现实领域提供从底层引擎到专业应用的全面解决方案，其海量数据处理能力、高级仿真效果、跨平台通信、数据库驱动、二次开发支持等关键技术指标均全面领先于国内外其他同类产品。与国内外同类产品相比，VRMap能够为政府部门、企业、专业领域用户提供性能更优、持有与维护成本更低、扩展性更好的三维地理信息和虚拟现实应用解决方案，是"数字城市"建设最佳的基础软件平台之一-VRMap 2.X product line is Beijing Ling Software Technologies Ltd. has full autonomy on intellectual property rights leading the core technology of 3D GIS software platform, the 3D GIS and virtual reality field from the bottom of the engine's comprehensive professional applications solutions, its ability to handle large volumes of data, Advanced Simulation results, cross-platform communications, database-driven, secondary development support key technical indicators overall lead to other similar products at home and abroad. Both at home and abroad, compared VRMap to government departments and enterprises, professional fields provide users with better performance, holders with lower maintenance costs and better scalability of 3D GIS and virtual reality application solutions, "Digita
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Size: 13312 |
Author: weiguian |
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Description: 浅析三维地理信息系统技术030621
@@浅析三维地理信息系统技术030621.rar-of 3D GIS technology 030621 @ @ On 3D geographic information system technology 0306 21.rar
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Size: 81920 |
Author: 威尔浮 |
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Description: arcgis 3D_Analyst vb 代码-arcgis 3D_Analyst for vb
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Size: 1421312 |
Author: 杨欣悦 |
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Description: 这时一个完整的三维显示系统 对于做可视化技术的专业的入门者时一个很好的学习例子-At this time a complete three-dimensional display system for visualization technology to do the professional entry when a good learning example
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Size: 16041984 |
Author: errtet |
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Description: 三维GIS资料 关于地下工程与GIS技术的结合 可用于三维选线-data of 3d GIS About the underground engineering and GIS technology, the combination can be used in 3d
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Size: 3745792 |
Author: 李庆兵 |
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Description: 基于C#+AE构建GIS桌面端应用系统，实现3D分析功能-Based on C#+ AE build GIS desktop applications to achieve 3D analysis function
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Size: 47104 |
Author: 音乐 |
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Description: 基于c#和AE开发的三维显示查询等功能，还结合了一个插件-C# and the AE based on the development of three-dimensional display query functions, but also a combination of a plug-in
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Size: 3111936 |
Author: 王大 |
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Description: OpenGL是近几年发展起来的一个性能卓越的三维图形标准，它是在SGI等多家世界闻名的计算机公司的倡导下，以SGI的GL三维图形库为基础制定的一个通用共享的开放式三维图形标准。目前，包括Microsoft、SGI、IBM、DEC、SUN、HP等大公司都采用了OpenGL做为三维图形标准，许多软件厂商也纷纷以OpenGL为基础开发出自己的产品，其中比较著名的产品包括动画制作软件Soft Image和3D Studio MAX、仿真软件Open Inventor、VR软件World Tool Kit、CAM软件ProEngineer、GIS软ARC/INFO等等。值得一提的是，随着Microsoft公司在Windows NT和最新的Windows 95中提供了OpenGL标准及OpenGL三维图形加速卡的推出，OpenGL将在微机中有广泛地应用，同时也为广大用户提供了在微机上使用以前只能在高性能图形工作站上运行的各种软件的机会。
-OpenGL is a recently developed three-dimensional graphics performance standards, it is in the SGI and many other world-famous computer company s initiative to SGI s GL-based three-dimensional graphics library share a common set of open three-dimensional graphics standards. Present, including Microsoft, SGI, IBM, DEC, SUN, HP and other large companies have adopted as a three-dimensional graphics standard OpenGL, many software vendors have to develop their own OpenGL-based products, the more well-known products include animation Soft Image software, and 3D Studio MAX, simulation software, Open Inventor, VR software, World Tool Kit, CAM software, ProEngineer, GIS software ARC/INFO and so on. It is worth mentioning that, with the Microsoft Corporation in the Windows NT and the latest available in Windows 95 OpenGL OpenGL standard and the introduction of three-dimensional graphics accelerator card, OpenGL will be widely used in computer, but also to provide customers in the microcomputers p
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Size: 636928 |
Author: LPFU |
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Description: 三维地理信息系统空间数据可视化C#+ArcEngine开发-3D GIS spatial data visualization C#+ ArcEngine development
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Size: 3443712 |
Author: pengjin |
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Description: 三维地理信息系统空间数据库具有数据量大、 空间实体关系复杂、 空间操作计算量大等特点。为了提高检索
效率 ,必须建立高效的空间索引机制。八叉树空间索引是对二维 GIS中四叉树索引进行扩展的一种三维空间数据结构 ,
具有思路简单、 容易理解和实现、 查询速度快的优点。本文首先阐述了线性八叉树空间索引的原理 ,然后重点介绍了线性
八叉树空间索引的建立和查询算法。-In the 3D GIS database , there is a large quantity of data , spatial entities with complicated relationship s , and a
large quantity of space operations. In order to improve the search efficiency , we must establish a highly efficient spatial in2
dexing mechanism. Oct ree index is an expansion of quadt ree index. It s ideas are simple ,easy2to2understand and easy2to2real2
ize , and it s query speed is high. This paper describes the principle of the linear oct ree spatial index ,and then focuses on the
establishment and the query algorithms of the linear oct ree spatial index.
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Size: 263168 |
Author: tigerwoods |
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Description: 此文档收录了WorldWind国内权威学习笔记（来自无痕客博客连载16篇），是理解消化吸收World Wind庞大代码的简明人性化教材。-This is a learning note of World Wind sourse code recommended by many 3D GIS fans.Absolutely,it is a express way to understand such a big programme code.
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Size: 1786880 |
Author: panjing |
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Description: osgEarth 用户手册，适合3D GIS 开发人员参考，中文版。-osgEarth user manual and reference for 3D GIS developers, the Chinese version.
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Size: 425984 |
Author: fdaf |
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Description: 针对STK（Satellite Tool Kit）软件在军事任务可视化仿真领域中的广泛应用，为充分挖掘
其显示潜能，重点解决了影响其三维场景构建的瓶颈问题，即三维场景数据格式的转换和数据的获取
优化。在分析构建STK 三维场景所需要素及其作用的基础上，分别对地形、地表纹理、三维模型和GIS
等四类数据格式进行分析，并利用多种辅助软件，系统地提出了由较通用格式数据向STK 所支持格式
数据的转换方法，以及在对各类原始数据的获取和转换过程中出现的问题进行处理的优化方法。最后通过实例验证表明该数据格式转换方法和数据优化方法行之有效，三维场景显示效果逼真。-STK (Satellite Tool Kit) software widely used in the field of military tasks, visual simulation, to fully tap its display potential, focus on resolving the bottlenecks that affect the construction of the three-dimensional scene, 3D scene data format conversion and data Get optimization. On the basis of the required elements and their role in the analysis of building STK three-dimensional scene analysis, respectively, of the four types of terrain, surface texture, three-dimensional model and GIS data format and use a variety of assistive software, the system proposed by the more common format The data support the format of the data to STK conversion method, as well as access to various types of raw data and conversion process issues deal with the optimization method. Finally, an example to show that the data format conversion method and data optimization method is effective, realistic three-dimensional scene display.
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Size: 2289664 |
Author: 周宇 |
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Description: gis平台AE开发，3d各图层叠加显示设置，包括窗体和源码-gis platform AE development, 3d each layer superimposed display settings, including the form and source code
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Size: 20480 |
Author: liurufei |
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Description: This is a 3D GIS source code
This is a 3D GIS source code
This is a 3D GIS source code-This is a 3D GIS source code
This is a 3D GIS source code
This is a 3D GIS source code
This is a 3D GIS source code
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Size: 2048 |
Author: wang |
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Description: This is a 3D GIS source code
This is a 3D GIS source code
This is a 3D GIS source code-This is a 3D GIS source code
This is a 3D GIS source code
This is a 3D GIS source code
This is a 3D GIS source code
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Size: 1024 |
Author: wang |
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