基于VTK的三维地震建模方法研究
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摘要
在三维地震波动方程模拟或射线追踪正演研究与应用中,需要构建复杂的三维地震模型,因此,研究复杂地震模型的计算机建模方法是必要的。本文提出了采用基本几何形体及形体间的布尔运算来构建复杂模型的思想与方法,并在VTK可视化工具包和MFC开发平台的基础上,对该方法进行了算法与软件实现。应用设计的软件进行了建模实验,结果表明该方法用于地震建模是完全可行的,并大幅度地提高了地震建模的效率。
The study of the complex seismic modeling method is necessary because the complex seismic model is needed in the research and application on 3D seismic wave equation simulation or the 3D ray tracing simulation.A method that uses basic geometric shapes and their Boolean operations to build complex seismic model is proposed and both algorithm and software are implemented based on visualization toolkit(VTK)and MFC development platform.The modeling tests by using the software we designed show that this method is feasible to be used in the seismic modeling and in addition,the efficiency of seismic modeling is widely improved.
The study of the complex seismic modeling method is necessary because the complex seismic model is needed in the research and application on 3D seismic wave equation simulation or the 3D ray tracing simulation.A method that uses basic geometric shapes and their Boolean operations to build complex seismic model is proposed and both algorithm and software are implemented based on visualization toolkit(VTK)and MFC development platform.The modeling tests by using the software we designed show that this method is feasible to be used in the seismic modeling and in addition,the efficiency of seismic modeling is widely improved.
引文
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[2]颜辉武,祝国瑞.地下水的体视化研究[M].武汉:武汉大学出版社,2004.
[3]赵攀,田宜平,刘军旗,等.三维地质建模及其在水利水电工程中的应用[J].工程地球物理学报,2007,4(5):520~524.
[4]高级,崔若飞,许崇宝.基于OpenGL的煤矿地震数据三维可视化[J].工程地球物理学报,2008,5(2):157~163.
[5]吕志领,高级.基于OpenGL的二维电法数据三维可视化技术研究[J].工程地球物理学报,2013,10(3):394~397.
[6]Lu X Q,Jia D Z,Zhang B H,et al.Study and Implementation for Interactive Cutting of 3D Medical Imag e Based on VTK[A].In:IEEE 2011Cross Strait Quad-Regional Radio Science and Wireless Technology Conference[C].2011,1351~1354.
[7]李婧,李昌华.基于VTK的体绘制系统实现[J].现代电子技术,2008,12:88~97.
[8]Rong J,Zhao C L,Fan Z J,et al.Realistic 3DFace Reconstruction Based on VTK and MFC[A].In:IEEE2010International Conference on Optoelectronics and Image Processing[C].2010,145~149.
[9]张志庭,汪新庆,李伟忠.地质灾害勘察数据在三维GIS中的表达方法研究[J].工程地球物理学报,2004,1(6):525~529.
[10]Zhong D H,Li M C,Liu J.3Dintegrated modeling approach to geo-engineering objects of hydraulic and hydroelectric projects[J].Science in China(Series E:Technological Sciences),2007,50(3):329~342.
[11]Yang C G,Chen Y J,Sun J G.Advanced Geometric Modeler with Hybrid Representation[J].J.of Comput.Sci.&Technol,1996,11(1):1~8.
[12]Mller T.Fast Triangle-Triangle Intersection Test[J].Journal of Graphics Tools,1997,2(2):25~30.
[13]Baerentzen,J A,Aanaes H.Signed distance computation using the angle weighted pseudonormal[J].IEEE Transactions on Visualization and Computer Graphics,2005,11(3):243~253.
[14]Quammen C,Weigle C,Russell M,et.al.Boolean Operations on Surfaces in VTK Without External Libraries[EB/OL].http://hdl.handle.net/10380/3262,2011-05-20.
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