Abstract: Earthquake disaster prediction system provides good technical support for protecting against and mitigating earthquake disasters,and becomes mature day by day with the development of GIS technology and the theory of earthquake disaster prediction.But the results of traditional earthquake disaster prediction software are displayed in 2D,such as table,curve and histogram,which are very difficult to reflect the solid characteristic of buildings'damage.So this paper aims at the study of the use of the mainstream 3D modeling software to model of earthquake damage to one-storey house,and at the solutions of how to combine effectively the information of building textures and earthquake damage,that is,using polygon modeling to model 3D buildings.Then it uses "Unwrap UVW" to unwrap the 3D building model's UVW to a picture,and exports the picture to Photoshop by using plug-in.Then it composites the building textures and the characteristics of building damage in Adobe Photoshop to complete the description of seismic damage of buildings.Finally,the compounded textures are returned to 3DS Max and mapped on the 3D models of buildings,resulting in seismic hazard models of.3ds format for the visualization programs.In this paper,the modeling process of seismic hazards is described in detail.Besides,this paper also studies the modeling of house collapse.Since house collapse is involved in many fragments,it is hard to perform modeling using the methods presented above.It is found that the existing software Reactor in the 3DS Max can be used to simulate fracture of a rigid body.With this approach this work realizes the establishment of the model of one-story house collapse,and obtains a good result.At last,this work develops the visualization function of seismic hazards by using the VBA and ArcObjects in the ArcGloble,and combines it with the mainstream GIS,which accelerates the use of 3D visualization technology in protecting against and mitigating earthquake disasters and has provided a new idea for the visualization of earthquake damage to buildings,and for the development of 3D earthquake disaster prediction software based on GIS software as well.

Key words: ArcGIS 9.0, 3DS Max7.0, earthquake damage, 3D visualization

摘要： 震害预测系统可为防震减灾提供良好的技术支持,并随着GIS技术和震害预测理论的不断完善日趋成熟。但传统的震害预测软件的结果大都以表格、曲线、直方图等二维形式进行显示,很难直观地反映建筑物震害的实体特征。因此,文中针对如何使用主流的3D建模软件建立房屋震害模型进行了研究,有效地将房屋纹理与震害信息进行合成,并结合主流的GIS软件——ArcGIS9.0,以砖平房震害为例实现了房屋震害的三维可视化,进一步促进了三维可视化技术在防震减灾方面的应用,为房屋震害可视化提供了一条新的思路,也为基于GIS的3D震害预测软件的建立提供了一条新的思路,具有一定的现实意义。

关键词: ArcGIS9.0, 3DS Max7.0, 震害, 三维可视化