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面向GIS 表达与分析的气象符号绘制库设计与实现

  

  • 出版日期:2016-10-31 发布日期:2016-10-20
  • 基金资助:
    国家自然科学基金项目(40901244)

Design and Implementation of Meteorological Symbol Library for GIS Visualization and Analysis

  • Online:2016-10-31 Published:2016-10-20

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摘要： 针对目前地理信息系统(GIS)软件中对气象符号支持的不足，通过对气象领域中所涉
及的符号进行特征分析及其逻辑分类，构建了对应的几何空间数据模型，并采用不同的“样式”表
征具体的气象符号，以“几何对象+样式”的形式完成气象符号对象的构建。在此基础上，基于GDI+
实现各种气象符号的矢量绘制，并封装形成可供直接调用气象矢量符号绘制库，为基于GIS 的气
象数据信息的表达和分析提供支撑。最后实例验证了本气象符号绘制库的正确性与实用性。

关键词: 气象符号, 符号库, 地理信息系统, 可视化

Abstract: Geographic information system (GIS) can’t deal with meteorological data directly due to the
shortage of necessary meteorological symbol library currently. Therefore, this article analyzes the
characteristics of commonly used meteorological symbols and logically classifies the symbols into three
types (symbol based on point, symbol based on line, symbol based on area) considering the professional
criterion as well as the meteorological application. Then the corresponding spatial geometry models and
symbol styles are also constructed to build the meteorological symbol library in the form of the
“geometry+style”. All the meteorological symbols in the library are drawn successfully based on GDI+,
and packaged as drawing library for GIS usage. The meteorological symbol library constructed in this
paper provides support for the presentation and analysis of the meteorological information based on GIS.