水文图形模拟系统,通过加载外部水文数据，进行2D图像显示，能进行渐变、黑白等图像处理提出所需的水文数据，图像直观。-Hydrological graphical simulation system, by loading external hydrological data, the 2D image display, gradient, black and white image processing to introduce the necessary hydrological data,