基于数字地形图与分形理论的地形生成  

Terrain generation based on the digital topographic map and fractal theory

作　　者：齐敏[1] 王强[1] 韩一红[1] 张小溪[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129

出　　处：《电子设计工程》2013年第15期191-193,共3页Electronic Design Engineering

摘　　要：提出了一种基于ASTER GDEM数字地形图与分形理论相结合的三维地形生成方法。首先利用数字地形图灰度值-高程值映射来得到图像像素对应的高程值,然后运用Diamond-Square算法来生成地形网格,最后对生成的地形进行真实感显示仿真并给出了实例。上述方法取得了较好的仿真效果,对地形模拟进行了有益的探索与尝试。This paper proposes a method for three-dimensional （3D）terrain generation based on ASTER GDEM digital topographic map and fractal theory.At first,we generate the altitude values correspond to image pixels by the gray value- elevation value mapping,and then generated the terrain grid by using the Diamond-Square algorithm.3D realistic display of terrain is simulated and an instance of the model is shown in the end.The above-described methods obtain satisfactory simulation results and take the beneficial exploration and attempt to terrain simulation.

关 键 词：地形图 分形 地形 真实感显示 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]