摘要
平面地形图在人类生产生活中发挥着重要的作用,但地形图重在表示位置,对于地面以上的要素形态通常难以表示.利用虚拟现实技术在电脑屏幕上构建三维场景,再现实地形态,用户可在其中进行全方位漫游、交互,这对平面地形图是一个很好的补充.阐述了利用平面地形图在Terra Vista中快速构建三维虚拟场景的关键技术,包括数据的生成、虚拟场景的构建方法等,并结合实际地形图再现了三维虚拟场景.
Plain map plays an important role in our life and work.Its task is to show position but not everything on the ground.3D scene constructed and showed on the computer window is based on virtual reality technology,which is a good support to plain map.The steps to construct 3D scene in Terra Vista by plain map are stated including data generation and method to make 3D scene,and at last the 3D scene is showed.
出处
《兰州交通大学学报》
CAS
2012年第1期14-17,共4页
Journal of Lanzhou Jiaotong University
