Research on Algorithm of 2D and 3D Interactive Virtual City System
The integration of 2D GIS and 3D GIS is an important application of the current virtual city system.This paper constructs a virtual city system that integrates 2D GIS and 3D GIS.On this basis,research and achieve on visualization interactive of 2D GIS and 3D GIS.The interactive algorithm is proposed based on the assumption of parameters,so the viewpoint position of the 3D scene can be located according to the 2D scene viewpoint parameters,the viewpoint position of 2D scene can be located according to the 3D scene viewpoint parameters as well,and the position synchronization is maintained in both views through event trigger mechanism during interaction.When user manipulates one viewpoint in 2D GIS or 3D GIS,the others moves synchronously to the same area and angle.Three different views are used as contrasts to verify the accuracy of the algorithm.The implementation results show that the algorithm of synchronization can adapt to various user operations,with feasibility and accuracy.
Hao Tang Shuangquan Ge Jianbo Liu Yalin Zhang Qiyun He Pengfei Li
Computer Application Institute,China Academy of Engineering Physics,Mianyang,621900,China
国际会议
上海
英文
1-5
2018-10-12（万方平台首次上网日期，不代表论文的发表时间）