等值线剖面图是在等值线图的基础上绘制而成的,可以清晰表达沿地表某一方向地理要素的变化趋势,教学过程中,使用剖面图判读等值线图,可加强学生对等值线图地理意义的理解。地形剖面图的绘制方法目前主要有两种,一种是将纸质地形图矢量化,然后使用地理信息系统软件(如ArcGIS)将矢量等值线转换为DEM,获取地形剖面图,由于地形图矢量化工作量较大,因此该方法较浪费时间;第二种方法是使用量尺在纸质图上将剖面图水平坐标 Isoline contour map is drawn on the basis of the contour map can be clearly expressed along the surface of a direction of geographical trends in the direction of the elements, teaching process, the use of profile interpretation contour map, students can enhance the Isoline map understanding of geographical significance. At present, there are two methods to draw terrain profiles. One is to vectorize the paper topography, and then use GIS software (such as ArcGIS) to convert the vector contours into DEMs to obtain topographic maps. Because of the topographic map The vectorization workload is large, so the method is a waste of time; The second method is to use the ruler in the paper map will be horizontal cross-sectional coordinates