基于多种三维场数据模型的场景分析与表达  

Scene Analysis and Representation Based on Various 3D Field Data Models

作　　者：程盼 姚春雨 CHENG Pan;YAO Chunyu(ARSC Remote Sensing Group Co.,Ltd.,Xi′an 710199,China)

机构地区：[1]中煤航测遥感集团有限公司,陕西西安710199

出　　处：《测绘与空间地理信息》2023年第11期125-127,131,共4页Geomatics & Spatial Information Technology

摘　　要：基于WebGL技术,在面元模型和体元栅格这2种基本场数据模型的研究基础上,引入体渲染技术,实现了一种同时具备前两种模型优势的体渲染模型,以适应现实世界各种各样复杂的三维场景。本文主要围绕3种模型如何构建、内部信息如何表达、场景如何落地等问题,进行说明与效果展示。能够为业务分析提供更形象的可视化支持,为相关部门的决策提供强有力的支撑。Based on WebGL technology and the research of two basic field data models:bin model and voxel grid,this paper introduces volume rendering technology to realize a volume rendering model with the advantages of the previous two models at the same time,so as to adapt to a variety of complex 3D scenes in the real world.This paper mainly focuses on the way to construct the three models,express the internal information,realize the scene,and conduct introduction and effect presentation.It can provide more visual support for business analysis and provide strong support for the decision-making of relevant departments.

关 键 词：WEBGL 面元模型 体栅格 体渲染 三维场景表达 

分 类 号：P208[天文地球—地图制图学与地理信息工程]