基于ENVI+IDL的遥感三维地形可视化技术研究与实现

摘要

IDL是进行三维数据可视化显示、分析及应用开发的理想工具.研究了三维地形建模的原理、相关技术及用IDL实现三维可视化的方法和流程，并基于ENVI+IDL研究开发了遥感三维地形可视化功能模块.该模块依据在研的工程地质遥感解译软件系统的要求，实现了三维地形可视化的放缩、平移、旋转、漫游等相关功能.%IDL is the ideal tool for 3D data visualization display, analysis and application development. The principles and technologies of 3D terrain modeling, methods and process of 3D visualization realizing with IDL are studied,and the remote sensing 3D terrain visualization module which is based on ENVI+ IDL is developed. The module realizes 3D terrain visualization and zooming,panning,rotating and flying functions, which meets requirements of the EGRIS project.