趋势图分析,一个由DCS的数据记录曲线图得到数据的小软件，方便由图得到数据。使用时需要设置时间和数据上下限的坐标，然后移动鼠标到曲线上，就能得到时间和数据。可以批量获取多点数据，使用非常方便。适用于工业控制的历史数据曲线的数据获取。-A data record by the DCS curve obtained data of small software to facilitate data obtained from Fig. When used to set upper and lower limits of time and data coordinates, and then move the mouse to the curve, you can get the time and data. You can get more data volume, easy to use. Suitable for industrial control historical data curve data acquisition.