读取数据库绘制曲线图完整程序。本人学习C#是制作的，适合初学者或者急需掌握这项技能的人使用。-Read the full curve of the database mapping process. I am learning C# is produced, suitable for beginners or the urgent need to master the skills of the people.

c#绘制曲线图实例，下载后，解压出来，即可打开查看代码-c# draw graph instance, download, unzip them, you can open the View Code

计算质心坐标(c)与边界与质心间的距离r(i)，并绘制theta 与r_histogram 的关系曲线图-Calculating the centroid coordinates (c) between the boundary and the centroid distance r (i), and the mapping relationship between theta and r_histogram graph

用C#实现了绘制直方图，饼图和曲线图，单数据直方图取最前两列，第一列为横轴每列名称，第二列为值。-Using C# to achieve a draw histograms, pie charts and graphs, histograms single data before taking the two, the first name of each column as the horizontal axis, and the second as a value.