一、地图比例尺的定义地图比例尺是组成地图数学要素中的一个重要要素。地球表面的面积是很大的,必须经过缩小才能绘于纸上,比例尺就是反映地物图形在绘画时缩小的程度。也就是说,地图比例尺是指图上线段长度与实地相应线段长度的水平投影之比。例如图上甲、乙两地的距离是1厘米,而甲、乙两地实地水平距离是1公 First, the definition of the map scale The map scale is an important element in the composition of the mathematical elements of the map. The area of ​​the earth’s surface is very large and must be reduced to be drawn on paper. The scale refers to the degree to which the figure image shrinks during drawing. In other words, the map scale refers to the ratio of the length of the line segment on the graph to the horizontal projection of the corresponding line segment in the field. For example, the distance between A and B on the map is 1 cm, while the horizontal distance between A and B on the ground is 1