摘要
对当前流行的3DGIS系统进行了介绍,并研究提出了采用面向对象的方法来表达3D场景中的空间数据,基于栅格金字塔模型来组织和管理地形数据,基于视点相关的地形LoD方法实现了大范围漫游,基于参数化3D建模方法和矢量地物LoD来实现地物数据的建模和可视化的方法,设计和构建西北地区战场地理空间信息可视化系统(3DMGIS)。
The paper introduces the current popular 3DGIS system, and studies to put forward the method ofobject-oriented to express the space data within a view of 3D, according to the grid space pyramid model to organize and manage the geography data, according to saw to order the related geography LoD method to carry out the big scope to range, according to the method that the parameter turns the 3D to set up the mold method and a thing of vector LoDs to carry out data to set up the mold and visual, design and set up design and research of the geography space information visual system of the battlefield （3DMGIS）.
出处
《地理空间信息》
2007年第4期51-53,共3页
Geospatial Information
