结合地理信息的气象数据可视化平台设计与实现

发布时间：2018-04-15 11:14

本文选题：地理信息系统(GIS) + 三维大气数据可视化　；参考：《浙江大学》2013年硕士论文

【摘要】：近些年来,随着计算机与计算技术的飞速发展,数据观测和采集仪器的进步,生成了大量的气象数据,怎样充分使用这些数据进行更好的气象预报是气象工作者的一个非常具有挑战性的课题。将科学数据可视化的技术应用到气象领域,使得原本复杂、海量、晦涩的数据转变成直观的二维和三维可视化结果,有效帮助气象工作者分析气象数据和在短时间做出准确的判断。因此开发出一款面向气象数据的可视化平台具有极大的价值和意义。本文以OpenGL和GLSL为基础,Qt为开发框架,开发了一个结合地理信息的三维数值大气数据可视化平台。平台的基础是基于地理信息的三维虚拟环境的快速构建和建模,在此之上的三维数值大气数据的可视化提供了全球尺度的大气信息(如温度、湿度、风场、云等)的直观呈现。此外,平台还支持气象数据的常规处理和操作,包括数据等值线和等值面的抽取和绘制,三维数据的直接体绘制,切面绘制,多种不同绘制物体的混合绘制以及矢量场数据的各种绘制方法。通过用户的一些交互可以选取对全局或者局部数据操作,为用户提供了良好的交互方式。本系统基于模块和插件式的设计和开发,支持多平台且易于扩展,为未来工作打下坚实的基础。
[Abstract]:In recent years, with the rapid development of computer and computing technology, data collection and observation instrument progress, generating a large number of meteorological data, meteorological forecast how to make full use of these data better is a very challenging topic. Meteorologists will scientific data visualization technology applied to the field of meteorology, making the complex, massive, obscure data into intuitive 2D and 3D visualization results, effectively help meteorologists meteorological data analysis and make accurate judgment in a short time. Therefore, the development has a great value and significance of a visualization platform for meteorological data.
This paper is based on OpenGL and GLSL, Qt development framework, the development of a GIS 3D numerical atmospheric data visualization platform. The platform is based on 3D virtual environment of geographic information, quick construction and modeling based on visualization of 3D numerical atmospheric data above provide information (such as global scale atmospheric temperature humidity, wind, clouds, etc.) visual presentation. In addition, the platform also supports the conventional treatment and operation of meteorological data, including data extraction contour and isosurface rendering and direct volume rendering, 3D data, section drawing, different drawing objects mixed rendering and vector field data through various rendering methods. Some user interaction can be selected for the global or local data operation, provides a good interactive way for users.
The design and development of the system module and plug-in based on multi platform and easy to expand, lay a solid foundation for future work.

【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP391.41;P208

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