To analyze positional accuracy of geographical lines in GIS, this paper begins with a discussion on the representation and positional errors of linear features.
为了分析GIS图上地理曲线的定位精度，首先探讨地理曲线的表达与定位误差，区分“数字曲线”和“连续曲线”两个概念；
The graphical representation of positional uncertainty provides the assessment of the quality of positional data with a visual means.
位置不确定性的图形描述为评价位置观测数据的质量提供了可视化的方法。
The graphical representation of positional uncertainty provides the assessment of the quality of positional data with a visual means.
位置不确定性的图形描述为评价位置观测数据的质量提供了可视化的方法。
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