Visualization method development of virtual space using hybrid GIS data modeling method

摘要

The 3D objects presented as 2D projections may loose some of their properties and relations to other objects and may create difficulties to understand, analyze and evaluate the surrounding world in a critical for a certain activity moment. An increasing number of applications already seek for tools to model, store, analyze and visualize 3D data in an efficient and effective way.But according to transition from 2D GIS to 3D GIS, the processing speed for 3D GIS becomes slow and the user's real time rendering request is growing. In this study, to resolve the problems, we propose a novel method to adopt VRML visualization of tomography information and composite the 3D modeling to the tomography information. In the method, we convert the DEM format to VRML format to reduce the data size of the tomography information and make 3D modeling using Lidar. The proposed algorithm demonstrates the effective results of 3D virtual space.