基于VRGIS的建筑物体筛选漫游算法研究

Wandering Arithmetic of Objects Based on VRGIS

建筑物及室内物体是数字地球中的一种重要现象,在数字城市中占有十分重要的地位。建筑物室内漫游的算法,一直是个热点、难点。VRGIS中,室外物体漫游算法很难应用于室内,必须解决从室外到室内的漫游问题。作者结合VRML漫游的特点,综合引入PVS、LOD思想,提出了一种筛选漫游的方法,较好的解决了室内漫游的资源耗费问题。

Buildings and indoor objects are the very important phenomenon in digital earth, They are important in digital city. The wandering arithmetic of indoor objects is a hotspot and difficulty for many years. It is difficult to apply the arithmetic of outdoor objects to indoor objects. A new method is needed. In this article, the au- thor combines the feature of VRML with the idea of PVS and LOD, to put forward a method of filter wandering. The experiment shows that it can deal with the problem in a better way.