In surveying and mapping, GIS data production and system development of 3d digital city, construction and other aspects, has a wealth of experience.
公司在测绘、GIS地理信息数据生产及系统开发、三维数字城市建设等方面，有着丰富的经验。
Realistic 3d visual technology plays a key role in digital city and the real-time realistic shadow is widely applied as the CPU and GPU is enhanced.
真实感3维可视化技术是数字城市的关键技术之一，随着CPU和GPU能力的不断增强，使得实时的真实感阴影得到广泛的应用。
This paper introduces the frame system of digital city and the process of 3d city model, discusses CSG model method of buildings.
介绍了数字城市的框架体系和三维城市模型的建模过程，探讨了城市建筑物的CSG建模方法。
With the development of "digital city", 3D urban landscape reconstruction is becoming a focus of current research. It has a great significance to optimizing urban planning and management.
随着“数字城市”的兴起，城市三维景观重建正在成为当前研究的热点，它对优化城市规划管理具有十分重要的意义。
The scholars in the GIS domain always add adding texture on geometry model of the 3D things in the study on the 3D terrain and the digital city.
GIS学者在研究三维地形可视化和数字城市可视化时，普遍在地形、城市建筑物的几何模型上叠加了纹理。
On the basis of analysis of digital city research framework and existing 3d urban model, this paper researches mainly the techniques of building model based on CSG in digital city.
本文在对数字城市的研究体系和三维城市模型进行分析的基础上，着重对数字城市建筑物的构造实体几何(CSG)建模方法进行了研究。
As one of the important information resources in 3d reconstruction of digital city, primary objects 'regional extraction from urban CCD images is vital very much.
作为数字城市三维重建的重要信息来源，CCD图像中的关键目标区域提取是一个十分重要的课题。
The 3d engine plays an important role in many areas, such as virtual reality, digital city, film advantage, CAD and visual computer science.
三维图形引擎在虚拟现实、数字城市、影视广告、计算机辅助设计和科学计算可视化等各个方面起着十分重要的作用。
The 3d engine plays an important role in many areas, such as virtual reality, digital city, film advantage, CAD and visual computer science.
三维图形引擎在虚拟现实、数字城市、影视广告、计算机辅助设计和科学计算可视化等各个方面起着十分重要的作用。
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