【摘要】 近年来,由于显示设备的多样化及其功能的不断增强,对数字高程模型提出了更高的要求。本文提出一种基于地形特征的三维可视化数字高程模型缩放方法。与传统的缩放方法不同,本文提出的方法不仅对数字高程模型进行缩放,而且还能保留数字高程模型的特征。该方法由VisualC++6.0实现,并在真实的数字高程模型上完成对比实验。通过比较可以看出本文提出的方法比传统的缩放方法更加有效,而且,为数字高程模型提供了更好的三维显示效果。更多还原

【Abstract】 The diversity and versatility of display devices today imposes new demands on Digital Elevation Model.This paper proposes a resizing method for 3D visualization of Digital Elevation Model based on topographic feature.Being different from the traditional reduction and expansion methods,the method not only resizes Digital Elevation Model,but also preserves the characteristics of Digital Elevation Model.The method is implemented in Visual C++ 6.0 and experiments are carried out on actual Digital Elevation Model data.It can be seen from the comparison with scaling method that the proposed method is efficient and provides better 3D visualization of Digital Elevation Model.更多还原