地形图图廓整饰的设计与实现

图廓整饰是地形图的重要组成部分,也是地图输出过程中的一个重要环节。针对现有软件生成图廓整饰缺乏标准性和灵活性的问题,文中分析不同比例尺地形图图式规范,归纳总结出图廓整饰的内容,并根据图形特征与位置分布加以分类。在此基础上提出一种设计方案,通过对每个整饰要素定义相对坐标系和添加参数属性的方法,可以实现整饰要素的精确生成以及灵活调整。根据设计方案进行相关开发予以实现,实践结果表明,该方案确实有效,能实现地形图图廓整饰的自动化生成,提高制图工作效率。

The design and implementation of map margin decoration in topographic map

The map margin decoration is both an important part of the topographic map and of the map output process.In order to solve the problem of lack of standard and flexibility in the existing software generation, this paper analyzes the specification of different scale topographic map, summarizes the contents of the layout, and classifies them according to the characteristics of graphics and position distribution.On this basis, a design scheme is proposed.By defining the relative coordinate system and adding parameter attributes for each finishing element, the precise generation and flexible adjustment of the finishing elements can be realized.According to the design scheme for implementation of related development, practice result shows that the scheme is effective,which can realize automatic generation of the map margin decoration of the topographic map,and improve the efficiency of drawing.