نتایج جستجو برای: 3d gis

تعداد نتایج: 221785  

2002
Arzu Çöltekin

The fast developments in the information technology reflects also on the GIS community and new opportunities give new challenges to the research and development groups. As a result of these developments, 3D data can already be processed efficiently and better methods are being explored increasingly. At the same time, the Internet has matured in many senses since it was first publicized and it i...

2002
Wenxiang PENG Xiangyang SHE Huifeng XUE Wenyu ZHANG

Profile analysis of urban underground pipelines solely from 2D GIS data is very difficult because the two-dimensional geographic information system technologies do not quite meet all the utility's needs. The present study aims at developing a quick and practical method to automatically produce the utility’s profile using 3D GIS techniques. A 3D Urban Pipe Network Model (3DUPNM) about undergroun...

2000
JÜRGEN DÖLLNER KLAUS HINRICHS

Visualization has become an integral part in many applications of GIS. Due to the rapid development of computer graphics, visualization and animation techniques, general-purpose GIS can no longer satisfy the multitude of visualization demands. Therefore, GIS have to utilize independent visualization toolkits. This article examines how visualization systems can be used with and integrated into G...

2004
D. Hilbring

This paper describes the integration of high resolution digital elevation models, currently acquired by the administration of BadenWürttemberg, a state in Germany, in two example 3D GIS applications of the Environmental Information System (UIS) of BadenWürttemberg. The combination of the high resolution DEM with the area-wide data acquisition in Baden-Württemberg leads to a great amount of data...

2004
Alias Abdul Rahman

3D spatial data modeling is one of the key research problems in 3D GIS. More and more applications depend on these 3D spatial data. Mostly, these data are stored in Geo-DBMSs. However, recent Geo-DBMSs do not support 3D primitives modeling, it only able to describe a single-attribute of the third-dimension, i.e. modeling 2.5D datasets that used 2D primitives (plus a single z-coordinate) such as...

2013
Ken Arroyo Ohori Hugo Ledoux Jantien E. Stoter

Real-world phenomena have traditionally been modelled in 2D/3D GIS. However, powerful insights can be gained by integrating additional non-spatial dimensions, such as time and scale. While this integration to form higher-dimensional objects is theoretically sound, its implementation is problematic since the data models used in GIS are not appropriate. In this paper, we present our research on o...

2004
Masatoshi MORI

A high-resolution Digital Elevation Model (DEM) (10m meshed grid) has been integrated with Geographic Information Systems (GIS). So far, 50m-meshed DEM by the Geological Survey of Japan (GSJ) is widely used for various GIS applications such as constructing 3D systems in Japan. 50m DEM covers all over the area of Japan, which has 0.1-meter resolution in a vertical direction. The spatial resoluti...

Journal: :International Journal of Geographical Information Science 2001
Bo Huang Bin Jiang Hui Li

This paper explores the way in which GIS, Virtual Reality (VR) and the Internet are closely integrated through the link of Virtual Reality Modelling Language (VRML) for spatial data visualization, analysis and exploration. Integration takes advantage of each component, and enables the dynamic 3D content to be built, visualized, interacted with and deployed all on the Web. To accomplish this, a ...

2003
Arzu Çöltekin

Geographic Information Systems (GIS) traditionally handle very complex datasets and operations; therefore the interface design is a hard task. Most GIS software has a CAD background and as they are highly graphic; a GIS interface has always been a Graphical User Interface (GUI) and 3D online GIS requires a special GUI. “Virtual Reality ”(VR) is an environment where the human perception of a sim...

Journal: :CoRR 2015
Weixi Wang Zhihan Lv Xiaoming Li Weiping Xu Baoyun Zhang

This is the preprint version of our paper on ICONIP2015. The proposed platform supports the integrated VRGIS functions including 3D spatial analysis functions, 3D visualization for spatial process and serves for 3D globe and digital city. The 3D analysis and visualization of the concerned city massive information are conducted in the platform. The amount of information that can be visualized wi...

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