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：
