1 立题背景绘制地下水埋深过程线与降水量、开采量柱状图,是地下水资料整编工作的重要环节,也是进行水资源评价的重要参考。通过直观的地下水埋深过程线与降水量、开采量柱状图,可对地下水埋深资料进行合理分析,保持资料的真实性。手工绘制地下水埋深过程线与降水量、开采量柱状图是非常繁琐,既费工费时,也不便统一,且各人有各人的特点, 1 SETTING THE BACKGROUND Drawing the process line of groundwater depth and the histogram of precipitation and extraction is an important part of the reorganization of groundwater data and an important reference for water resources assessment. Through the intuitive groundwater depth of the process line and precipitation, the amount of extraction of histograms, groundwater depth information can be a reasonable analysis to maintain the authenticity of the data. Hand-drawn groundwater depth of the process line and precipitation, mining volume histogram is very tedious, not only time-consuming, inconvenient to unify, and each has its own characteristics,