三维地形模拟技术是当前计算机绘图领域中研究的重点之一。
The 3d terrain simulation technique is one of important research issues in the computer graphics.
摘 要： 三维地形模拟一直是虚拟现实、地理信息系统（GIS）等领域的研究热点。
Absrtact: 3D terrain simulation is always a hot topic in geographic information system(GIS), virtual reality and so on.
提出一种新的三维空间不规则网格有限差分方法，模拟具有地形构造的非均匀各向异性介质中弹性波传播过程。
This paper presents a new 3d finite-difference (FD) method using spatially irregular grids to simulate elastic wave propagation in heterogeneous anisotropic media with topographic structures.
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