The Research of 3D Terrain Generation and Interactivity Realization Techniques in Virtual Battlefield Environment

2009 ◽  
Author(s):  
Xiao-yan Li ◽  
Min Li ◽  
Wei Cai
Keyword(s):  
3D Terrain ◽  
Battlefield Environment ◽  
Terrain Generation

scholarly journals Study on 3D Terrain Generation and Lightweighting Method of Highway

2020 ◽  
Vol 474 ◽  
pp. 072074
Author(s):  
Yinghao Chen ◽  
Leisheng Zhou ◽  
Jianping Xia
Keyword(s):  
3D Terrain ◽  
Terrain Generation

On Real-Time Modeling of 3D Terrain Database

2013 ◽  
Vol 760-762 ◽  
pp. 1884-1887
Author(s):  
Wei Zhang ◽  
Chun Hua Zhang ◽  
Yan Zhang
Keyword(s):  
Large Scale ◽  
Simulation Models ◽  
Database Modeling ◽  
Modeling Methods ◽  
Modeling Process ◽  
3D Terrain ◽  
Time Modeling ◽  
Gis Data ◽  
Environmental Simulations ◽  
Terrain Generation

With the uprising deployment of large-scale environmental simulations, as well as the wide applications of the GIS data in the simulation models, the traditional modeling methods have been difficult to meet the requirements of terrain generation of large areas. In this paper, we study a new terrain database modeling process based on Celerity/TerraVista, which uses the techniques of image compression, block optimization, and level of detail (LOD) , for terrain generation of large areas. Tis new modeling process has been applied in our independently developed simulation system and has achieved good results.

Rendering Vector Data over 3D Terrain with View-Dependent Perspective Texture-Mapping

2010 ◽  
Vol 22 (5) ◽  
pp. 753-761 ◽  
Author(s):  
Hong Chen ◽  
Xiaoan Tang ◽  
Yaohua Xie ◽  
Maoyin Sun
Keyword(s):  
Texture Mapping ◽  
Vector Data ◽  
3D Terrain

scholarly journals Path Planning and Replanning for Mobile Robot Navigation on 3D Terrain: An Approach Based on Geodesic

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Kun-Lin Wu ◽  
Ting-Jui Ho ◽  
Sean A. Huang ◽  
Kuo-Hui Lin ◽  
Yueh-Chen Lin ◽  
...  
Keyword(s):  
Mobile Robot ◽  
Robot Navigation ◽  
Tangent Plane ◽  
Intersection Point ◽  
Mobile Robot Navigation ◽  
Complete Manifold ◽  
Geodesic Triangle ◽  
Planning Stage ◽  
3D Terrain ◽  
Bonnet Theorem

In this paper, mobile robot navigation on a 3D terrain with a single obstacle is addressed. The terrain is modelled as a smooth, complete manifold with well-defined tangent planes and the hazardous region is modelled as an enclosing circle with a hazard grade tuned radius representing the obstacle projected onto the terrain to allow efficient path-obstacle intersection checking. To resolve the intersections along the initial geodesic, by resorting to the geodesic ideas from differential geometry on surfaces and manifolds, we present a geodesic-based planning and replanning algorithm as a new method for obstacle avoidance on a 3D terrain without using boundary following on the obstacle surface. The replanning algorithm generates two new paths, each a composition of two geodesics, connected via critical points whose locations are found to be heavily relying on the exploration of the terrain via directional scanning on the tangent plane at the first intersection point of the initial geodesic with the circle. An advantage of this geodesic path replanning procedure is that traversability of terrain on which the detour path traverses could be explored based on the local Gauss-Bonnet Theorem of the geodesic triangle at the planning stage. A simulation demonstrates the practicality of the analytical geodesic replanning procedure for navigating a constant speed point robot on a 3D hill-like terrain.

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