using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Drawing;
using?System.Windows.Forms;

namespace?DrawPlane
{
????class?Draw
????{
????????public?Bitmap?mybitmap;//用于雙緩沖的位圖，和畫布等大
????????Random?rm?=?new?Random（）;

????????public?void?DrawLineS（Color?color?float?Xmark?float?Ymark?PictureBox?picboxPoint[]?ptlist）
????????{
????????????mybitmap?=?new?Bitmap（picbox.Width?picbox.Height）;//設定位圖大小
????????????Graphics?doublebufferg?=?Graphics.FromImage（mybitmap）;//從位圖上獲取畫布
????????????doublebufferg.Clear（Color.White）;//用背景色刷新

????????????//pictureBox1填充為白色，便于顯示圖像?500*300
????????????Rectangle?rect?=?new?Rectangle（0?0?picbox.Width?picbox.Height）;
????????????doublebufferg.FillRectangle（new?SolidBrush（Color.White）?rect）;

????????????//畫X軸和Y軸
????????????DrawXY（ref?doublebufferg?picbox）;
????????????//X軸上的刻度
????????????SetXAxis（ref?doublebufferg?picbox?Xmark）;
????????????//Y軸上的刻度
????????????SetYAxis（ref?doublebufferg?picbox?Ymark）;

????????????//繪制實時隨機曲線
????????????Point?temp?=?new?Point（）;
????????????for?（int?j?=?0;?j?????????????{
????????????????temp?=?ptlist[j?+?1];
????????????????ptlist[j]?=?new?Point（temp.X?-?5?temp.Y）;
????????????}
????????????Point?lastpt?=?new?Point（）;
????????????lastpt.X?=?picbox.Width;
????????????lastpt.Y?=?rm.Next（DateTime.Now.Millisecond）?%?picbox.Height;
????????????ptlist[picbox.Width?/?5?-1]?=?lastpt;
????????????doublebufferg.DrawLines（new?Pen（Color.Red2）?ptlist）;

????????????//將緩沖中的位圖繪制到窗體上
????????????Graphics?g1?=?picbox.CreateGraphics（）;//創建?PictureBox窗體的畫布

????????????g1.Clear（Color.White）;
????????????g1.DrawImage（mybitmap?0?0）;
????????}

????????//畫X軸和Y軸的基本部分，包括間隔、方向箭頭
????????public?void?DrawXY（ref?Graphics?g?PictureBox?picbox）
????????{
????????????Pen?pen?=?new?Pen（Color.Green?2）;//畫筆
????????????SolidBrush?sb?=?new?SolidBrush（Color.Green）;//畫刷

????????????//X軸上的方向箭頭，實際上是繪制了一個三角形
????????????Point[]?xpts?=?new?Point[3]{
????????????????new?Point（picbox.Width-35picbox.Height-32）
????????????????new?Point（picbox.Width-35picbox.Height-28）
????????????????new?Point（picbox.Width-30picbox.Height-30）
???????????????????????????????????????};
????????????g.DrawLine（pen?30?picbox.Height?-?30?picbox.Width?-?30?picbox.Height?-?30）;//繪制X坐標軸
????????????g.DrawPolygon（penxpts）;//繪制X軸的方向箭頭
????????????g.DrawString（“X軸“?new?Font（“宋體“?9）?sb?picbox.Width?-?25?picbox.Height?-?35）;//標注X軸

????????????//Y軸的箭頭，實際上是繪制了一個三角形
????????????Point[]?ypts?=?new?Point[3]{
??????????????????new?Point（2835）
??????????????????new?Point（3030）
??????????????????new?Point（3235）???};
????????????g.DrawLine（pen?30?picbox.Height?-?30?30?30）;
????????????g.DrawPolygon（pen?ypts）;
????????????g.DrawString（“Y軸“?new?Font（“宋體“?9）?sb?20?10）;
????????}
????????//繪制平行Y軸的豎線，相當于X軸上的刻度
????????public?void?SetXAxis（ref?Graphics?g?PictureBox?picbox

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????12800??2011-03-27?11:37??DrawPlane\DrawPlane\bin\Debug\DrawPlane.exe

?????文件??????30208??2011-03-27?11:37??DrawPlane\DrawPlane\bin\Debug\DrawPlane.pdb

?????文件??????14328??2011-03-27?11:45??DrawPlane\DrawPlane\bin\Debug\DrawPlane.vshost.exe

?????文件????????490??2007-07-21?01:33??DrawPlane\DrawPlane\bin\Debug\DrawPlane.vshost.exe.manifest

?????文件???????5521??2011-03-27?11:37??DrawPlane\DrawPlane\Draw.cs

?????文件???????3764??2011-03-23?10:22??DrawPlane\DrawPlane\DrawPlane.csproj

?????文件???????3020??2011-03-27?11:22??DrawPlane\DrawPlane\Form1.cs

?????文件???????5867??2011-03-27?11:06??DrawPlane\DrawPlane\Form1.Designer.cs

?????文件???????6008??2011-03-27?11:06??DrawPlane\DrawPlane\Form1.resx

?????文件????????618??2011-03-27?11:45??DrawPlane\DrawPlane\obj\Debug\DrawPlane.csproj.FileListAbsolute.txt

?????文件????????847??2011-03-27?11:06??DrawPlane\DrawPlane\obj\Debug\DrawPlane.csproj.GenerateResource.Cache

?????文件??????12800??2011-03-27?11:37??DrawPlane\DrawPlane\obj\Debug\DrawPlane.exe

?????文件????????180??2011-03-27?11:06??DrawPlane\DrawPlane\obj\Debug\DrawPlane.Form1.resources

?????文件??????30208??2011-03-27?11:37??DrawPlane\DrawPlane\obj\Debug\DrawPlane.pdb

?????文件????????180??2011-03-23?10:22??DrawPlane\DrawPlane\obj\Debug\DrawPlane.Properties.Resources.resources

?????文件????????490??2011-03-23?09:42??DrawPlane\DrawPlane\Program.cs

?????文件???????1374??2011-03-23?09:42??DrawPlane\DrawPlane\Properties\AssemblyInfo.cs

?????文件???????2868??2011-03-23?09:42??DrawPlane\DrawPlane\Properties\Resources.Designer.cs

?????文件???????5612??2011-03-23?09:42??DrawPlane\DrawPlane\Properties\Resources.resx

?????文件???????1094??2011-03-23?09:42??DrawPlane\DrawPlane\Properties\Settings.Designer.cs

?????文件????????249??2011-03-23?09:42??DrawPlane\DrawPlane\Properties\Settings.settings

?????文件????????917??2011-03-23?09:42??DrawPlane\DrawPlane.sln

????..A..H.?????15872??2011-03-27?12:03??DrawPlane\DrawPlane.suo

?????目錄??????????0??2011-03-23?12:33??DrawPlane\DrawPlane\obj\Debug\Refactor

?????目錄??????????0??2011-03-23?09:42??DrawPlane\DrawPlane\obj\Debug\TempPE

?????目錄??????????0??2011-03-23?10:22??DrawPlane\DrawPlane\bin\Debug

?????目錄??????????0??2011-03-27?11:37??DrawPlane\DrawPlane\obj\Debug

?????目錄??????????0??2011-03-23?09:42??DrawPlane\DrawPlane\bin

?????目錄??????????0??2011-03-23?09:42??DrawPlane\DrawPlane\obj

?????目錄??????????0??2011-03-23?09:42??DrawPlane\DrawPlane\Properties

............此處省略5個文件信息