摘要
图纸定向误差是数字地图误差的主要来源,要获得高精度的数字地图,有必要对图纸定向问题进行研究。本文以1:2000,40cm×50cm的图幅为例,介绍了一种基于AutoCAD,对TIF格式影像进行图纸定向的两点定向法。相信本文所介绍的两点图纸定向法必将对扫描屏幕数字化中图纸定向问题的研究,有一定的借鉴和参考价值。
Map orient error is a major error in the digital map errors. It is necessary to research how to orient map for getting high precise digital map. Taking one 1:2000, 40c m×50 cm map as an example, the paper introduces a new map orient method on the basis of AutoCAD,namely two-point map orient method.It is believed that the method is of reference in the scanscreen digital map.
关键词
图纸定向
坐标变换
数字地图
两点定向法
map orientation
coordinate transform
digital map
two-point map orient method
