快速生成扇形图

快速生成扇形图只需修改数组budgetAll和actualAll

代码如下：

 1                //设置笔刷样式

 2                 SolidBrush[] sbrush =

 3                 {

 4                     new SolidBrush(Color.Wheat),//背景色

 5                     new SolidBrush(Color.Gold),//其它

 6                     new SolidBrush(Color.Red),//交通

 7                     new SolidBrush(Color.Green),//饮食

 8                     new SolidBrush(Color.Blue),//门票

 9                     new SolidBrush(Color.Brown)//住宿

10                 };

11                 Rectangle rect1 = new Rectangle(0, 0, 200, 200);

12                 Rectangle rect2 = new Rectangle(10, 10, 180, 180);

13                 Graphics g1 = panel1.CreateGraphics();//预算

14                 Graphics g2 = panel2.CreateGraphics();//实际支出

15                 g1.FillEllipse(sbrush[0], rect1);

16                 g2.FillEllipse(sbrush[0], rect1);

17                 g1.FillEllipse(sbrush[1], rect2);

18                 g2.FillEllipse(sbrush[1], rect2);

19                 string[] budgetAll = budget.Split(',');

20                 string[] actualAll = actual.Split(',');

21                 int sumBudget = 0;

22                 int sumActual = 0;

23                 for (int i = 0; i < budgetAll.Length; i++)

24                 {

25                     sumBudget +=Int32.Parse(budgetAll[i]);

26                     sumActual += Int32.Parse(actualAll[i]);

27                 }

28 

29                 int angleBud = 30;//预算起始角度

30                 int angleAct=30;//实际起始角度

31                 int tempBud, tempAct;

32                 for (int i = 0; i < budgetAll.Length-1; i++)

33                 {

34                     tempBud=(int)(Int32.Parse(budgetAll[i]) * 360 / sumBudget);

35                     tempAct=(int)(Int32.Parse(actualAll[i]) * 360 / sumActual);

36                     g1.FillPie(sbrush[i + 2], rect2, angleBud, tempBud);

37                     g2.FillPie(sbrush[i + 2], rect2, angleAct, tempAct);

38                     angleBud += tempBud;

39                     angleAct += tempAct;

40                 }

效果图如下：