利用数字正射影像图进行地形图测绘,在我市属首次。经图像格式转换、坐标转换,图幅拼接,内业矢量采集,野外调绘补测和高程测量,根据外业实测的数据再对内业采集的DLG作一定平面微调,内业编辑成图。在特殊情况和要求下,利用此方法进行快速地形图测绘,作了一个有益的探索。 The use of digital orthophoto map for mapping, in my city for the first time. After the image format conversion, coordinate conversion, map splicing, the industry vector collection, the field mapping and elevation mapping test, according to the field measured data and then collected DLG for a certain degree of internal fine-tuning, internal editing into a map. Under special circumstances and requirements, using this method for rapid topographic mapping made a useful exploration.