VR-GIS技术在无锡西部地区地裂缝研究中的应用

VR-GIS技术在无锡西部地区地裂缝研究中的应用

朱琳¹，苏小四²，林学钰²，宫辉力¹，于军³

1.首都师范大学资源环境与旅游学院/三维信息获取与应用教育部重点实验室，北京 100048;2.吉林大学环境与资源学院，长春 130026;3.江苏省地质调查研究院，南京 210028

收稿日期:2008-07-07 修回日期:1900-01-01 出版日期:2009-03-26 发布日期:2009-03-26
通讯作者: 朱琳

Application of VR-GIS in Studying Ground Fracture in the Western Region of Wuxi Area

ZHU Lin¹, SU Xiao-si², LIN Xue-yu², GONG Hui-li¹, YU Jun³

1.College of Resources Environment and Tourism/Lab of 3-D Information Acquisition and Application, MOE, Capital Normal University,Beijing 100048,China;2.College of Environment and Resources, Jilin University, Changchun 130026,China;3.Geological Survey of Jiangsu Province, Nanjing 210018,China

Received:2008-07-07 Revised:1900-01-01 Online:2009-03-26 Published:2009-03-26
Contact: ZHU Lin

摘要/Abstract

摘要： 以无锡西部地区为研究区，利用虚拟GIS技术建立仿真地裂缝的虚拟平台，在数字高程模型的基础上，结合锡西地区地裂缝的分布特征以及野外采集的数据，对延伸地面和房屋的地裂缝分别采用几何建模法和动态纹理建模法，从而实现小尺度范围内动态仿真研究区地裂缝及其对房屋产生的影响作用。此外，在大尺度范围内对比产生裂缝的房屋、基岩起伏以及地面累计沉降量的三维空间分布，对比地裂缝与引发因素间的相互关系。选择开发环境良好的VC++作为虚拟开发平台，利用OpenGL（open graphic library）作为可视化开发工具包。研究成果能够为研究者清晰直观地探究地裂缝灾害的发生过程、引发因素以及产生的后果，提供一个强有力的工具。

关键词: 地裂缝, VR-GIS, 无锡西部地区

Abstract: The development platform of simulate ground fissures was built by applying VR-GIS in the western region of Wuxi, Jiangsu Province. On the base of digital elevation modeling, combining with the distribution feature of ground fissures and the texture collected from field, the authors adopted geometrical algorithm and texture mapping technique to simulate the ground fissures and building fissures, respectively. Then in small scale, the ground fracture and its affection on building is vividly simulated. At the same time contracting the fissured building with the discrepancies in the forms of bedrock and the accumulative land displacement, researchers can learn factors which induce ground fracture. The authors utilized Visual C++ as an interface development tool and OpenGL(open graphics library) as a graphic tool. All the work is a primary study aiming at supply an interactive platform for researchers to learn the ground fissures by a vivid style.

Key words: ground fissures, VR-GIS, the western region of Wuxi area

中图分类号:

P641.8

朱琳，苏小四，林学钰，宫辉力，于军. VR-GIS技术在无锡西部地区地裂缝研究中的应用[J]. J4, 2009, 39(2): 317-0322.

ZHU Lin, SU Xiao-si, LIN Xue-yu, GONG Hui-li, YU Jun. Application of VR-GIS in Studying Ground Fracture in the Western Region of Wuxi Area[J]. J4, 2009, 39(2): 317-0322.

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