基于等高线的三维真实感地形绘制技术的研究

Research on the Drawing technique of 3-D Real Sense Topography Based on Contour Lines

在船舶操纵模拟器等的研制中 ,核心技术之一是视景模拟 ,三维真实感地形是模拟器视景系统的重要组成部分。本文从基于等高线的三维地形几何建模的角度出发 ,对现有三维真实感地形绘制技术进行了研究与分类 ,结合模拟器视景的实际情况 。

In the development of ship maneuvering simulators one of the key techniques is simulation of viewing scenes and three dimensional (3 D) real sense topography is an important component of the viewing scenes system of simulator. In this paper from the viewpoint of setting up the geometric model of 3 D topography based on contour lines, the existing 3 D real sense topography drawing techniques are studied and classified. Combined with the specific situation of simulator viewing scenes, the model construction methods by ridge piling or contouring based on contour lines are proposed, which are considered as effective methods of drawing 3 D real sense topography in the viewing scenes of simulator.