基于 Three．js 的真实三维地形可视化设计与实现

摘要

The emergence of HTML5 and promote of WebGL have provided a new solution for 3DWebGIS.For the construction and implementation of realistic 3D Terrain, researched the WebGL third-party library Three.js, proposed a way to construct 3D Terrain based on Tiles and DEM, and gave full play the WebGL open, free plug-in, cross-platform, hardware-accelerated advantages, created three-dimensional terrain browser-based interactive system.Do experiments to validate the feasibility and effectiveness of the method.%HTML5的出现以及WebGL技术的推广，为三维WebGIS提供了新的解决方案。针对强调具有真实感三维地形的构建与实现，对WebGL第三方类库Three．js引擎进行了研究，提出了基于瓦片、DEM数据的三维地形构建方法，并充分发挥WebGL开放性、免插件、跨平台、硬件加速的优势，创建了基于浏览器的三维地形交互系统，实验验证了该方法的可行性与有效性。