在像片調繪工作中充分利用像片优越性的儿点經驗我队今年在担陝西省渭洛平原区的测量工作中,是采用單張像片进行調绘,按二万五千分之一的精度要求,采用由六万三千分之一比例尺底片放大成约一万七千分之一比例尺的像片圖。由于这是一件新的工作,开始时还是按測地形图的办法利用跑尺子及用高程导线来求圖面高程,才能划出等高线,工作效率很慢,还不如人工测繪快。因为用像片虽较人工测图可以少做图枳点,少放村庄点,但仍就要用高程导綫,并且还多了求像片比例尺及后視方向对像主点的工作。經大家研究,打破常規,充分发挥像片作用,工 Taking full advantage of the superiority of the photo in the picture drawing and painting work Experience of our team This year we undertook the surveying of the Weiluo Plain in Shaanxi Province using a single picture and deploying twenty-five thousandths One of the precision requirements, the use of one by one thirty-three thousandths of the scale enlarged about one thousand seventeen thousandths of the scale photo map. Since this is a new job, we can start with drawing the topographic map and using the running ruler and the elevation guide to find the elevation of the drawing, so as to draw the contour line. The work efficiency is very slow, not as fast as the manual mapping. Because although the use of photographic images than manual mapping can do less holly point, less put the village point, but still use the elevation wire, and also seek more photo scale and rear view of the direction of the main point of work. After we study, break the routine, give full play to the role of photo, workers