C#绘制各种图形代码

1、01.using System;02.using System.Collections.Generic;03.using System.Linq;04.using System.Text;05./06.using System.Drawing;07./08.namespace DatePrint09.10. / <summary>11. / 根据统计数据，输出各种统计图形，包括饼状图、曲线分析图、柱形 图、多组数据曲线分析图；12. / 统计图形统一大小： 600*420；13. / 开发人员：#；14. / 开发时间：#；15. / </summary>16. pub

2、lic class CountImage17. 18. #region / 颜色，画框，19. / <summary>20. / 生成随机颜色21. / </summary>22. / <returns></returns>23. private static Color GetRandomColor(int seed)24. 25. Random random = new Random(seed);26.int r = 0;27.int g = 0;28.int b = 0;29. r = random.Next(0, 230);30. g =

3、 random.Next(0, 230);31. b = random.Next(0, 235);32. Color randomcolor = Color.FromArgb(r, g, b);33. return randomcolor;34. 35. / <summary>36. / 绘制区域框，框何其阴影37. / </summary>38. / <param name="image"> 图形 </param>39. / <param name="rect"> 矩形框对象 </par

4、am>40. / <returns> 图形 </returns>41. private static Bitmap DrawRectangle(Bitmap image,Rectangle rect)42. 43. Bitmap Image=image;44. Graphics g = Graphics.FromImage(Image);45. g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;46. g.SmoothingMode = System.Drawing.Draw

5、ing 2D.SmoothingMode.AntiAlias;47. try48. 49. Rectangle rn =new Rectangle(rect.X +3,rect.Y +3,rect.Width,rect.Height); 50.SolidBrush brush1 = new SolidBrush(Color.FromArgb(233, 234, 249); 51.SolidBrush brush2 = new SolidBrush(Color.FromArgb(221, 213, 215);52. /53. g.FillRectangle(brush2, rn);54. g.F

6、illRectangle(brush1, rect);55. return Image;56. 57. finally58. 59. g.Dispose();60. 61. 62. #endregion63. #region /绘制图例框，绘制扇形64. / <summary>65. / 绘制图例信息66. / </summary>67. / <param name="image"> 图像 </param>68. / <param name="rect"> 第一个矩形框 </param&g

7、t;69. / <param name="c"> 颜色 </param>70. / <param name="DesStr"> 图例说明文字 </param>71. / <param name="f"> 文字样式 </param>72. / <param name="i"> 图例说明序号 </param>73. / <returns> 图形 </returns>74. private static

8、 Bitmap DrawDes(Bitmap image,Rectangle rect,Color c,string DesStr,Font f,int i)75. 76. Bitmap Image = image;77. Graphics g = Graphics.FromImage(Image);78. g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;79. g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;80.

9、try81. 82.SolidBrush brush = new SolidBrush(c);83. /84. Rectangle R =new Rectangle(rect.X,rect.Y +18*i,rect.Width,rect.Height);85. Point p = new Point(rect.X + 12, rect.Y + 18 * i);86. / ?颜色矩形框87. g.FillRectangle(brush,R);88. / 文字说明89. g.DrawString(DesStr, f, new SolidBrush(Color.Black), p);90. retu

10、rn Image;91. 92. finally93. 94. g.Dispose();95. 96. 97. / 绘制扇形98. private static Bitmap DrawPie(Bitmap image, Rectangle rect, Color c, int Angle1, int Angle2)99. 100. Bitmap Image = image;101. Graphics g = Graphics.FromImage(Image);102. g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.Ant

11、iAlias;103. g.SmoothingMode = System.Drawing.Drawing 2D.SmoothingMode.AntiAlias;104. try105. 106.SolidBrush brush = new SolidBrush(c);107. /108. Rectangle R = new Rectangle(rect.X, rect.Y, rect.Width, rect.Height);109. g.FillPie(brush, R, Angle1, Angle2);110. return Image;111. 112. finally113. 114.

12、g.Dispose();115. 116. 117. #endregion118. #region/ 绘制基本图形119. / <summary>120. / 生成图片，统一设置图片大小、背景色 ,图片布局，及标题121. / </summary>122. / <returns> 图片 </returns>123. private static Bitmap GenerateImage(string Title)124. 125. / 图片大小：宽度、高度126.int width = 600;127.int height = 420;128.

13、/ 标题129. Point PTitle=new Point(30,20);130. Font f1 = new Font("宋体", 10, FontStyle.Bold);131. /线132. Point PLine1=new Point(20,40);133. Point PLine2=new Point(390,40);134. Pen pen = new Pen(new SolidBrush(Color.FromArgb(8,34,231),1.5f);135. / 主区域 ,主区域图形136. Rectangle RMain1=new Rectangle(2

14、0,55,410,345);137. Rectangle RMain2=new Rectangle(25,60,400,335);138. / 图例区域139. Rectangle RDes1=new Rectangle(440,55,150,345);140. / 图例说明141. string Des="图例说明：142. Font f2 = new Font("新宋体", 9, FontStyle.Bold);143. Point PDes=new Point(445,65);144. /图例信息，后面的 x 坐标上累加 20145. Rectangle R

15、Des2=new Rectangle(445,90,10,10);146. Bitmap image = new Bitmap(width, height);147. /148. Graphics g = Graphics.FromImage(image);149. g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;150. g.SmoothingMode = System.Drawing.Drawing 2D.SmoothingMode.AntiAlias;151. try152. 153. / 设置背

16、景色、绘制边框154. g.Clear(Color.White);155. g.DrawRectangle(new Pen(Color.Black), 0, 0, width - 1, height - 1);156. / 绘制标题、线157. g.DrawString(Title, f1, new SolidBrush(Color.Black),PTitle);158. g.DrawLine(pen, PLine1, PLine2);159.160./ 主区域161.image = DrawRectangle(image, RMain1);162./ 图例区域163.image = Draw

17、Rectangle(image, RDes1);164. / 图“例说明 ”165. g.DrawString(Des, f2, new SolidBrush(Color.Black), PDes);166. /return167. return image;168. 169. finally170. 171. g.Dispose();172. 173. 174. #endregion175. #region / 绘制饼状图176. / <summary>177. / 计算数值综合178. / </summary>179. / <param name="

18、Value"></param>180. / <returns></returns>181. private static decimal Sum(decimal Value)182. 183. decimal t=0;184. foreach (decimal d in Value)185. 186. t += d;187. 188. return t;189. 190. / <summary>191. / 计算各项比例192. / </summary>193. / <param name="Value

19、"></param>194. / <returns></returns>195. private static decimal GetItemRate(decimal Value)196. 197. decimal sum = Sum(Value);198. decimal ItemRate = new decimalValue.Length;199. for (int i = 0; i < Value.Length; i+)200. 201.ItemRatei = Valuei / sum;202. 203. return ItemR

20、ate;204. 205. / <summary>206. / 根据比例，计算各项角度值207. / </summary>208. / <param name="ItemRate"></param>209. / <returns></returns>210. private static int GetItemAngle(decimal ItemRate)211. 212.int ItemAngel = new intItemRate.Length;213. for (int i = 0; i <

21、 ItemRate.Length; i+)214. 215. decimal t=360*ItemRatei;216.ItemAngeli = Convert.ToInt32(t);217. 218. return ItemAngel;219. 220. / <summary>221. / 绘制饼图 (主要是分析不同类型的数值所占比例 )，参数有图的标题， 项目名称，项目的数值，名称和数值都是长度对应的222. / </summary>223. / <param name="Title"> 图的标题 </param>224.

22、/ <param name="ItemName"> 项目名称 </param>225. / <param name="ItemValue"> 项目的数值 </param>226. / <returns>Bitmap 图形 </returns>227. public static Bitmap GetPieImage(stringTitle,stringItemName,decimalItemValue)228. 229. Bitmap image = GenerateImage(Ti

23、tle);230. /231. / 主区域图形232. Rectangle RMain = new Rectangle(35, 70, 380, 300);233. / 图例信息234. Rectangle RDes = new Rectangle(445, 90, 10, 10);235. Font f = new Font("新宋体 ", 9, FontStyle.Bold);236. Graphics g = Graphics.FromImage(image);237. g.TextRenderingHint = System.Drawing.Text.TextRen

24、deringHint.AntiAlias;238. g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;239. try240. 241. / 分析数据，绘制饼图和图例说明242. decimal ItemRate = GetItemRate(ItemValue);243.int ItemAngle = GetItemAngle(ItemRate);244.int Angle1 = 0;245.int Angle2 = 0;246.int len = ItemValue.Length;247. Color c =

25、 new Color();248. /3D249. g.DrawPie(new Pen(Color.Black), RMain, 0F, 360F);250. g.DrawPie(new Pen(Color.Black),new Rectangle(RMain.X,RMain.Y +10,RMain.Width, RMain.Height), 0F, 360F);251. g.FillPie(new SolidBrush (Color.Black), new Rectangle(RMain.X, RMain.Y +10, RMain.Width, RMain.Height), 0F, 360F

26、);252. / 绘制253. for (int i = 0; i < len; i+)254. 255. Angle2 = ItemAnglei;256. /if (c != GetRandomColor(i)257. c = GetRandomColor(i);258.SolidBrush brush=new SolidBrush(c);259. stringDesStr=ItemNamei+"("+(ItemRatei*100).ToString(".00")+"%"+")"+ItemValuei.To

27、S tring(".00");260. /261. DrawPie(image, RMain, c, Angle1, Angle2);262. Angle1 += Angle2;263. DrawDes(image, RDes, c, DesStr, f, i);264. 265. return image;266. 267. finally268. 269. g.Dispose();270. 271. 272. #endregion273. #region / 获取 Y轴坐标数据274. /*275. 坐标轴实现算法描述：276. * X 轴坐标根据项目数量把 X轴均等分

28、，有效长度 350，277. * Y轴有效长度 280，平分为 10个等分，即有十个点；278. * Y 轴的数值算法：第一个点位最小值，然后每个等分所对应的值是（最大值 -最小值） /9，279. */280. / <summary>281. / 获取 Y 轴坐标的点分布值282. / </summary>283. / <param name="ItemValue"> 项目数值 </param>284. / <param name="YCount">Y 轴点的数量 </param>

29、285. / <returns> 图形 </returns>286. private static int GetYValue(decimal ItemValue,int YCount)287. 288.int len = ItemValue.Length;289.int Value = new intYCount;290.int Max = Convert.ToInt32(ItemValue.Max();291.int Min = Convert.ToInt32(ItemValue.Min();292.int Distance = Convert.ToInt32(Ma

30、x-Min)/(YCount-1);293. for (int i = 0; i < YCount; i+)294. 295. Valuei = Min + Distance * i;296. 297. /ValueYCount - 1 = Max;298. return Value;299. 300. #endregion301. #region / 建立坐标轴302. / <summary>303. / 绘制坐标轴， X、Y 轴的坐标值304. / </summary>305. / <param name="image"> 图像

31、 </param>306. / <param name="ItemName"> 项目名称 </param>307.308.309.ItemValue)310.311.312.313.314.315.316.317.318.319.320.321.322.323.324.325.326.327.328.329.330.331.332.333.334.335.336.337.338.339.340. / <param name="ItemValue"> 项目数值 </param>/ <retu

32、rns> 图像 </returns>private static Bitmap DrawCoordinate(Bitmap image,stringItemName,decimal/ 坐标轴Point P0 = new Point(60, 360);Point Px = new Point(420, 360);Point Py = new Point(60, 65);Pen pen=new Pen(Color.Black);/ 箭头Point Py1=new Point(58,70);Point Py2=new Point(62,70);Point Px1=new Point

33、(415,358);Point Px2=new Point(415,362);/Y,X Value/y 280-10int YCount = 10;/Y 轴点的数量int YDistance = Convert.ToInt32(280/YCount) ;/Y轴点击的距离int YValue = GetYValue(ItemValue, YCount);int len = 3;/ 短线的长度int XCount = ItemName.Length;/X 轴点的数量int XDistance = Convert.ToInt32(350/XCount);/X轴点间的距离/Font f = new F

34、ont("新宋体 ", 8, FontStyle.Bold);/ImageGraphics g = Graphics.FromImage(image);g.TextRenderingHint =System.Drawing.Text.TextRenderingHint.AntiAlias;g.SmoothingMode =System.Drawing.Drawing2D.SmoothingMode.AntiAlias;try / 绘制坐标轴线g.DrawLine(pen, P0, Px);g.DrawLine(pen, P0, Py);/ 箭头341. g.DrawLine

35、(pen, Py, Py1);342. g.DrawLine(pen, Py, Py2);343. g.DrawLine(pen, Px, Px1);344. g.DrawLine(pen, Px, Px2);345. /X346. for (int i = 1; i <= XCount; i+)347. 348. Point pl1 = new Point(P0.X+i*XDistance,P0.Y);349. Point pl2 = new Point(P0.X + i * XDistance, P0.Y - len);350. string str=ItemNamei - 1;35

36、1. Point ps = new Point(pl1.X-(str.Length*8),pl1.Y+5);352. g.DrawLine(pen, pl1, pl2);353. g.DrawString(str, f, new SolidBrush(Color.Black), ps);354. 355. /Y356. for (int i = 1; i <= YCount; i+)357. 358. Point pl1 = new Point(P0.X, P0.Y-YDistance*i);359. Point pl2 = new Point(pl1.X+len, pl1.Y);360

37、. string str=YValuei-1.ToString();361. Point ps = new Point(pl1.X - str.Length*8, pl1.Y - 5);362. g.DrawLine(pen, pl1, pl2);363. g.DrawString(str, f, new SolidBrush(Color.Black), ps);364. 365. /0366. g.DrawString("0",f,new SolidBrush(Color.Black),new Point(P0.X-10,P0.Y-10);367. /return368.

38、 return image;369. 370. finally371. 372. g.Dispose();373. 374. 375. #endregion376.377. #region / 获取某个数值在坐标系中的位置378. / <summary>379. / 获取某个数值在坐标系中的位置380. / </summary>381. / <param name="Value"> 当前数值 </param>382. / <param name="ItemValue"> 所有数值 </pa

39、ram>383. / <returns> 位置 </returns>384. private static int GetCoordinateValue(decimal Value,decimal ItemValue)385. 386. /y 280-10387. /get y YValue=GetYValue(ItemValue,10);389.int Max = YValue.Max();390.int Min = YValue.Min();391.float AvgDis = (Max - Min) / 9;392.float tt

40、 = (Convert.ToSingle(Value) - Min) / AvgDis;393.int m = Convert.ToInt32(tt*28);394. m = 360 - 28 - m;395. /if(Convert.ToInt32(Value) >= Max)396. /m=80;397. /else if (Convert.ToInt32(Value) <= Min)398. /m=332;399. return m;400. 401. #endregion402. #region / 绘制曲线图 *403. / <summary>404. / 绘

41、制曲线图 (主要是分析不同类型的数值所占比例，或者同意项目不 同状态下的值和趋势 )，参数有图的标题，项目名称，项目的数值，名称和数值 都是长度对应的405. / </summary>406. / <param name="Title"> 图的标题 </param>407. / <param name="ItemName"> 项目名称 </param>408. / <param name="ItemValue"> 项目的数值 </param>409.

42、/ <returns>Bitmap 图形 </returns>410. public static Bitmap GetLineImage(string Title,stringItemName,decimalItemValue)411. 412. Bitmap image = GenerateImage(Title);413.image = DrawCoordinate(image, ItemName, ItemValue);414. Graphics g = Graphics.FromImage(image);415. g.TextRenderingHint = S

43、ystem.Drawing.Text.TextRenderingHint.AntiAlias;416. g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;417. try418. 419.int PNum = ItemName.Length;420. Point Pts = new PointPNum;421. / 坐标轴422. Point P0 = new Point(60, 360);423. Point Px = new Point(420, 360);424. Point Py = new Point

44、(60, 65);425. Pen pen = new Pen(Color.Black);426. /427.int XCount = ItemName.Length;/X 轴点的数量428.int XDistance = Convert.ToInt32(350 / XCount);/X轴点间的距离429. / 图例430. Rectangle RDes = new Rectangle(445, 90, 10, 10);431. Font f = new Font("新宋体 ", 9, FontStyle.Bold);432. /433. for (int i = 0; i

45、 < PNum; i+)434. 435.int x=P0.X + (i+1) * XDistance;436.int y = GetCoordinateValue(ItemValuei, ItemValue);437. Ptsi = new Point(x, y);438. 439. / 把点连起来440. for (int i = 1; i < PNum; i+)441. 442. g.DrawLine(pen, Ptsi - 1, Ptsi);443. 444. / 画图例说明445. Color c = GetRandomColor(3);446. for (int i =

46、 0; i < PNum; i+)447. 448. string str = ItemNamei + ":" + ItemValuei.ToString();449. DrawDes(image, RDes, c, str, f, i);450. 451. /return452. return image;453. 454. finally455. 456. g.Dispose();457. 458. 459. #endregion460. #region / 绘制柱状图461. / <summary>462. / 绘制柱状图 （主要是分析某一个项目在不

47、同状态下的值，获取其发展 趋势），参数有图的标题，项目名称，项目的数值，名称和数值都是长度对应的463. / </summary>464. / <param name="Title"> 图的标题 </param>465. / <param name="ItemName"> 项目名称 </param>466. / <param name="ItemValue"> 项目的数值 </param>467. / <returns>Bitmap 图形

48、</returns>468. public static Bitmap GetColumnImage(string Title,stringItemName,decimal510. string str = ItemNamei + ":" + ItemValuei.ToString();511. DrawDes(image, RDes, c, str, f, i);512. 513. /return514. return image;515. 516. finally517. 518. g.Dispose();519. 520. 521. #endregion5

49、22. #region / 绘制多组数据曲线图 *523. / <summary>524. / 获取二维数组中的最大值525. / </summary>526. / <param name="ItemValues"></param>527. / <returns></returns>528. private static int GetMax(decimal ItemValues)529. 530.int Max = 0;531.for (int i = 0; i < ItemValues.Len

50、gth; i+)532.533.int t = Convert.ToInt32(ItemValuesi.Max();534.if (i = 0)535.Max = t;536.if (Max <= t)537. Max = t;538. 539. return Max;540. 541. / <summary>542. / 获取二维数组中的最小值543. / </summary>544. / <param name="ItemValues"></param>545. / <returns></retur

51、ns>546. private static int GetMin(decimal ItemValues)547. 548.int Min = 0;549.for (int i = 0; i < ItemValues.Length; i+)550.551.int t = Convert.ToInt32(ItemValuesi.Min();552.if (i = 0)553.Min = t;554.if (Min >= t)555. Min = t;556. 557. return Min;558. 559. / <summary>560. / 获取 Y 轴上点的数

52、值561. / </summary>562. / <param name="ItemValues"></param>563. / <param name="YCount"></param>564. / <returns></returns>565. private static int GetYValue(decimal ItemValues, int YCount)566. 567.int Value = new intYCount;568.int Max = GetM

53、ax(ItemValues);569.int Min = GetMin(ItemValues);570.int Distance = Convert.ToInt32(Max - Min) / (YCount - 1);571. for (int i = 0; i < YCount; i+)572. 573. Valuei = Min + Distance * i;574. 575. /ValueYCount - 1 = Max;576. return Value;577. 578. / <summary>579. / 获取某个数值在坐标系中的位置580. / </sum

54、mary>581. / <param name="Value"> 当前数值 </param>582. / <param name="ItemValue"> 所有数值 </param>583. / <returns> 位置 </returns>584. private static int GetCoordinateValue(decimal Value, decimal ItemValues)585. 586. /y 280-10587. /get y

55、 YValue = GetYValue(ItemValues, 10);589.int Max = GetMax(ItemValues);590.int Min = GetMin(ItemValues);591.float AvgDis = (Max - Min) / 9;592.float tt = (Convert.ToSingle(Value) - Min) / AvgDis;593.int m = Convert.ToInt32(tt * 28);594. m = 360 - 28 - m;595. return m;596. 597. / <summary>598. /

56、绘制坐标轴， X、Y 轴的坐标值599. / </summary>600. / <param name="image"> 图像 </param>601. / <param name="ItemName"> 项目名称 </param>602. / <param name="ItemValue"> 多组项目数值 </param>603. / <returns> 图像 </returns>604. private static Bit

57、map DrawCoordinate(Bitmap image,string ItemName, decimalItemValues)605. 606. / 坐标轴607. Point P0 = new Point(60, 360);608. Point Px = new Point(420, 360);609. Point Py = new Point(60, 65);610. Pen pen=new Pen(Color.Black);611. / 箭头612. Point Py1=new Point(58,70);613. Point Py2=new Point(62,70);614. P

58、oint Px1=new Point(415,358);615. Point Px2=new Point(415,362);616. /Y,X Value617. /y 280-10618.int YCount = 10;/Y 轴点的数量619.int YDistance = Convert.ToInt32(280/YCount) ;/Y轴点击的距离620.int YValue = GetYValue(ItemValues, YCount);621.int len = 3;/ 短线的长度622.int XCount = ItemName.Length;/X 轴点的数量623.int XDistance = Convert.ToInt32(350/XCount);/X轴点间的距离624. /625. Font f = new Font("新宋体 ", 8, FontStyle.Bold)