地面气象观测数据三维可视化技术研究

摘要

针对气象观测数据更新速度快、数据量大的特点，通过对气象数据采用Shepards预处理为离散栅格数据，并对处理结果采用地图比例尺的优化策略，结合VTK（ Visualization ToolKit ）将四川省地面气象观测文本数值数据用视觉观察的图像形式三维呈现，使用户能够直观地对数据进行观察、分析和交互操作，从而实现在平台上动态分层绘制大容量多组气象数据，实现四川省地面气象观测数据的三维可视化显示。%According to the ground meteorological observation data ’ s characteristics of faster update speed and the larger amount of data , the discrete raster data that preprocessed results by Shepards method and combined with the optimization strategy of map scale , so we visualization the ground meteorological observation text data in the form of 3 D image of Sichuan Province with the VTK ( Visualization the ToolKit ) that users can intuitively observation、analysis and interactive operation the data .That system can dynamic、hierarchical visualization the large capacity ground meteorological observation data of Sichuan Province .