摘要
误差椭圆是测量平差教学中的一项重要内容,其意义在于利用误差椭圆可以以可视化方式表达平面控制网中未知点点位精度在空间各方向上的大体分布情况。误差椭圆的教学核心内容之一是绘制误差椭圆。然而,长期以来,由于不能在课堂上现场演示误差椭圆的绘制过程致使教学效果受到影响。本文探讨利用寻常工具软件Excel绘制误差椭圆的方法,并辅以算例说明其教学效果。
Error ellipse is the important content in the teaching of surveying adjustment,and its significance lies in that the use of error ellipse can express the unknown points＇ precision in plane control network in each direction by the way of visualization.One of the core content of teaching of error ellipse is to draw error ellipse.However,for a long time,the teaching effect is influenced by deficiency in the ways of demonstration in the classroom to draw error ellipse.This paper discusses methods of using common software Excel to draw error ellipse,supplemented by examples to illustrate the effect of teaching.
出处
《测绘与空间地理信息》
2013年第7期5-7,11,共4页
Geomatics & Spatial Information Technology
基金
国家自然科学基金项目(41274006)
贵州大学高等教育研究项目(20110610)资助
关键词
测量平差
EXCEL
误差椭圆
坐标转换
椭圆点
surveying adjustment
Excel
error ellipse
coordinate transformation
ellipse point
