C#绘制动态曲线.doc

usingSystem;usingSystem.Collections;usingSystem.ComponentModel;usingSystem.Drawing;usingSystem.Data;usingSystem.Windows.Forms;namespacecurve/实时动态曲线图/代码编写：方志洪/编写时间：2007年2月7日/E-Mail：zhihongf#(请将#改为)/BLOG：/publicclassCurveControl:System.Windows.Forms.UserControlprivateSystem.Windows.Forms.PictureBoxpicCurveShow;privateSystem.Windows.Forms.LabellabShowView;/必需的设计器变量。/privateSystem.ComponentModel.Containercomponents=null;publicCurveControl()/该调用是Windows.Forms窗体设计器所必需的。InitializeComponent();/TODO:在InitializeComponent调用后添加任何初始化/清理所有正在使用的资源。/protectedoverridevoidDispose(booldisposing)if(disposing)if(components!=null)components.Dispose();base.Dispose(disposing);#region组件设计器生成的代码/设计器支持所需的方法-不要使用代码编辑器/修改此方法的内容。/privatevoidInitializeComponent()this.picCurveShow=newSystem.Windows.Forms.PictureBox();this.labShowView=newSystem.Windows.Forms.Label();this.SuspendLayout();/picCurveShow/this.picCurveShow.BackColor=System.Drawing.Color.Black;this.picCurveShow.Dock=System.Windows.Forms.DockStyle.Fill;this.picCurveShow.Location=newSystem.Drawing.Point(0,0);this.picCurveShow.Name=picCurveShow;this.picCurveShow.Size=newSystem.Drawing.Size(384,264);this.picCurveShow.TabIndex=0;this.picCurveShow.TabStop=false;this.picCurveShow.Resize+=newSystem.EventHandler(this.picCurveShow_Resize);this.picCurveShow.DoubleClick+=newSystem.EventHandler(this.picCurveShow_DoubleClick);this.picCurveShow.MouseMove+=newSystem.Windows.Forms.MouseEventHandler(this.picCurveShow_MouseMove);this.picCurveShow.MouseLeave+=newSystem.EventHandler(this.picCurveShow_MouseLeave);/labShowView/this.labShowView.AutoSize=true;this.labShowView.BackColor=System.Drawing.Color.Black;this.labShowView.ForeColor=System.Drawing.Color.Red;this.labShowView.Location=newSystem.Drawing.Point(192,96);this.labShowView.Name=labShowView;this.labShowView.Size=newSystem.Drawing.Size(42,17);this.labShowView.TabIndex=1;this.labShowView.Text=label1;this.labShowView.TextAlign=System.Drawing.ContentAlignment.MiddleCenter;this.labShowView.Visible=false;/CurveControl/this.Controls.Add(this.labShowView);this.Controls.Add(this.picCurveShow);this.Name=CurveControl;this.Size=newSystem.Drawing.Size(384,264);this.Load+=newSystem.EventHandler(this.CurveControl_Load);this.ResumeLayout(false);#endregion#region曲线数据定义/定义曲线窗体标题/privatestringtitle=方志洪曲线代码测试DEMO;/定义曲线标题颜色/privateColortitleColor=Color.Yellow;/定义是否显示系统时间/privateboolshowTime=true;/定义显示系统时间颜色/privateColorshowTimeColor=Color.Red;/定义坐标零点向右偏移量/privatefloatcoordinate=50F;/定义曲线Y轴最大值/privatefloatyMaxValue=100F;/定义曲线Y轴最大值提示文字/privatestringyMaxString=最大值：;/定义曲线Y轴最小值/privatefloatyMinValue=0F;/定义曲线Y轴最小值提示文字/privatestringyMinString=最小值：;/定义曲线Y轴正常值（上限）/privatefloatyUpper=70F;/定义曲线Y轴正常值（上限）提示文本/privatestringyUpperString=上限：;/定义曲线Y轴正常值（下限）/privatefloatyLower=20F;/定义曲线Y轴正常值（下限）提示文本/privatestringyLowerString=下限：;/定义曲线正常值上下限线段颜色/privateColoryUpperAndLowerColor=Color.Lime;/定义曲线正常值上下限线段宽度/privatefloatyUpperAndLowerPenWidth=1F;/定义背景颜色/privateColorbackGroundColor=Color.Black;/定义是否滚动网格线/privateboolremoveGrid=true;/定义背景网格线颜色/privateColorgridColor=Color.DarkGreen;/定义背景网格文字颜色/privateColorgridForeColor=Color.Yellow;/定义背景网格（分隔线）宽度/privatefloatgridCompart=1F;/定义背景网格文字大小/privatefloatgridFontSize=9;/定义背景网格线画笔宽度/privatefloatgridPenWidth=1F;/定义背景网格线单元格宽度/privatefloatgridWidth=10F;/定义背景网格线单元格高度/privatefloatgridHeight=30F;/定义曲线颜色/privateColorcurveColor=Color.White;/定义曲线画笔宽度/privatefloatcurvePenWidth=1;/定义曲线移动距离/privateintcurveRemove=1;/定义数值节点正方形宽度/privatefloatrectangleWidth=1F;/定义正方形颜色/privateColorrectangleColor=Color.White;/定义显示节点数值鼠标X，Y轴容差精度/privatefloatxYPrecision=4F;/曲线节点数据最大存储量/privateintmaxNote=1000;#endregion#region公共属性/定义曲线窗体标题/publicstringCarveTitlegetreturnthis.title;setthis.title=value;/定义标题颜色/publicColorCarveTitleColorgetreturnthis.titleColor;setthis.titleColor=value;/定义是否显示系统时间/publicboolCarveShowTimegetreturnthis.showTime;setthis.showTime=value;/定义显示系统时间颜色/publicColorCarveShowTimeColorgetreturnthis.showTimeColor;setthis.showTimeColor=value;/定义坐标零点向右偏移量/publicfloatCarveCoordinategetreturnthis.coordinate;setthis.coordinate=value;/定义曲线Y轴最大值/publicfloatCarveYMaxValuegetreturnthis.yMaxValue;setthis.yMaxValue=value;/定义曲线Y轴最大值提示文字/publicstringCarveYMaxStringgetreturnthis.yMaxString;setthis.yMaxString=value;/定义曲线Y轴最小值/publicfloatCarveYMinValuegetreturnthis.yMinValue;setthis.yMinValue=value;/定义曲线Y轴最小值提示文字/publicstringCarveYMinStringgetreturnthis.yMinString;setthis.yMinString=value;/定义曲线Y轴正常值（上限）/publicfloatCarveYUppergetreturnthis.yUpper;setthis.yUpper=value;/定义曲线Y轴正常值（上限）提示文本/publicstringCarveYUpperStringgetreturnthis.yUpperString;setthis.yUpperString=value;/定义曲线Y轴正常值（下限）/publicfloatCarveYLowergetreturnthis.yLower;setthis.yLower=value;/定义曲线Y轴正常值（下限）提示文本/publicstringCarveYLowerStringgetreturnthis.yLowerString;setthis.yLowerString=value;/定义曲线正常值上下限线段颜色/publicColorCarveYUpperAndLowerColorgetreturnthis.yUpperAndLowerColor;setthis.yUpperAndLowerColor=value;/定义曲线正常值上下限线段宽度/publicfloatCarveYUpperAndLowerPenWidthgetreturnthis.yUpperAndLowerPenWidth;setthis.yUpperAndLowerPenWidth=value;/定义背景颜色/publicColorCarveBackGroundColorgetreturnthis.backGroundColor;setthis.backGroundColor=value;/定义是否滚动网格线/publicboolCarveRemoveGridgetreturnthis.removeGrid;setthis.removeGrid=value;/定义背景网格线颜色/publicColorCarveGridColorgetreturnthis.gridColor;setthis.gridColor=value;/定义背景网格文字颜色/publicColorCarveGridForeColorgetreturnthis.gridForeColor;setthis.gridForeColor=value;/定义背景网格（分隔线）宽度/publicfloatCarveGridCompartgetreturnthis.gridCompart;setthis.gridCompart=value;/定义背景网格文字大小/publicfloatCarveGridFontSizegetreturnthis.gridFontSize;setthis.gridFontSize=value;/定义背景网格线画笔宽度/publicfloatCarveGridPenWidthgetreturnthis.gridPenWidth;setthis.gridPenWidth=value;/定义背景网格线单元格宽度/publicfloatCarveGridWidthgetreturnthis.gridWidth;setthis.gridWidth=value;/定义背景网格线单元格高度/publicfloatCarveGridHeightgetreturnthis.gridHeight;setthis.gridHeight=value;/定义曲线颜色/publicColorCarveCurveColorgetreturnthis.curveColor;setthis.curveColor=value;/定义曲线画笔宽度/publicfloatCarveCurvePenWidthgetreturnthis.curvePenWidth;setthis.curvePenWidth=value;/定义曲线移动距离/publicintCarveCurveRemovegetreturnthis.curveRemove;setthis.curveRemove=value;/定义数值节点正方形宽度/publicfloatCarveRectangleWidthgetreturnthis.rectangleWidth;setthis.rectangleWidth=value;/定义正方形颜色/publicColorCarveRectangleColorgetreturnthis.rectangleColor;setthis.rectangleColor=value;/定义显示节点数值鼠标X，Y轴容差精度/publicfloatCarveXYPrecisiongetreturnthis.xYPrecision;setthis.xYPrecision=value;/曲线节点数据最大存储量/publicintCarveMaxNotegetreturnthis.maxNote;setthis.maxNote=value;#endregion#region全局变量/背景方格移动量/privatefloatgridRemoveX=1;/鼠标X，Y坐标值，及该点坐标记录值、记录时间（数组）/privateCoordinatesValuenoteMessages;/当前鼠标X，Y坐标记录数组下标值/privateintnoteNow=0;/系统上次读取的值/privatefloatlastTimeValue=0F;/系统窗体高度临时值，用于窗体变形时刷新数组坐标。/privateintlastTimeSystemWindowHeight=0;/系统窗体宽度临时值，用于窗体变形时刷新数组坐标。/privateintlastTimeSystemWindowWidth=0;#endregion#region曲线数据显示#region绘制背景网格/刷新背景网格线，并返回背景图片（背景不判断是否滚动）/返回背景图片privateSystem.Drawing.BitmapRefBackground()if(this.picCurveShow.Height1|this.picCurveShow.Width=0;i=i-this.gridHeight)System.Drawing.PointFpointFBegin=newPointF(0F,i);System.Drawing.PointFpointFEnd=newPointF(this.picCurveShow.Width,i);backGroundImage.DrawLine(gridPen,pointFBegin,pointFEnd);/绘制背景纵轴线for(floati=this.picCurveShow.Width;i=0;i=i-this.gridWidth)System.Drawing.PointFpointFBegin;System.Drawing.PointFpointFEnd;if(i-gridRemoveX=0)pointFBegin=newPointF(i-gridRemoveX,0F);pointFEnd=newPointF(i-gridRemoveX,this.picCurveShow.Height);backGroundImage.DrawLine(gridPen,pointFBegin,pointFEnd);/绘制分隔线。backGroundImage.DrawLine(gridCompartPen,0,0,0,this.picCurveShow.Height);/绘制正常值上限，下限/绘制分隔线刻度文字System.Drawing.FontbackGroundFont=newFont(Arial,this.gridFontSize);floatfontHight=backGroundFont.GetHeight();System.Drawing.SolidBrushbrush=newSolidBrush(this.gridForeColor);/判断上下线值是否有效（非零）System.Drawing.PenupperAndLowerPen=newPen(this.yUpperAndLowerColor,this.yUpperAndLowerPenWidth);upperAndLowerPen.DashStyle=System.Drawing.Drawing2D.DashStyle.Dash;if(this.yLower0)floatyHeight=(float)this.picCurveShow.Height-(this.yLower/(this.yMaxValue-this.yMinValue)*(float)this.picCurveShow.Height;backGroundImage.DrawLine(upperAndLowerPen,0,yHeight,this.picCurveShow.Width,yHeight);/绘制下限文字backGroundImage.DrawString(this.yLowerString,backGroundFont,brush,-this.coordinate,yHeight-fontHight/2);if(this.yUpper0)floatyHeight=(float)this.picCurveShow.Height-(this.yUpper/(this.yMaxValue-this.yMinValue)*(float)this.picCurveShow.Height;backGroundImage.DrawLine(upperAndLowerPen,0,yHeight,this.picCurveShow.Width,yHeight);/绘制下限文字backGroundImage.DrawString(this.yUpperString,backGroundFont,brush,-this.coordinate,yHeight-fontHight/2);/绘制最大值文字backGroundImage.DrawString(this.yMaxString,backGroundFont,brush,-this.coordinate,0);/绘制最小值文字backGroundImage.DrawString(this.yMinString,backGroundFont,brush,-this.coordinate,(float)this.picCurveShow.Height-fontHight);/绘制曲线窗体标题brush=newSolidBrush(this.titleColor);backGroundImage.DrawString(this.title,backGroundFont,brush,(this.picCurveShow.Width/2-this.title.Length*this.gridFontSize),0);/绘制系统时间if(this.showTime)brush=newSolidBrush(this.showTimeColor);backGroundImage.DrawString(System.DateTime.Now.ToString(T),backGroundFont,brush,(this.picCurveShow.Width-105),this.picCurveShow.Height-fontHight);returnbitmap;/刷新背景网格线，并返回背景图片（背景判断是否滚动）/返回背景图片privateSystem.Drawing.BitmapRefAndRemoveBackground()/判断是否需要移动纵轴线if(this.removeGrid)if(this.gridRemoveX=this.gridWidth)this.gridRemoveX=1;elsethis.gridRemoveX=this.gridRemoveX+curveRemove;returnthis.RefBackground();#endregion/刷新背景网格线，显示曲线/publicvoidShowCurve()/窗体高度发生变化，先刷新数组Y坐标值if(this.picCurveShow.Height!=this.lastTimeSystemWindowHeight)|(this.picCurveShow.Width!=this.lastTimeSystemWindowWidth)this.RefurbishArray();System.Drawing.Bitmapbitmap=this.RefAndRemoveBackground();System.Drawing.Graphicsgraphics=System.Drawing.Graphics.FromImage(bitmap);/绘制曲线/判断数组中是否有两个以上的数值/绘制直线if(this.noteNow1)/声明绘制曲线的Point数组System.Drawing.PointpointsTemp=newPointthis.noteNow;System.Drawing.Pointpoints;/数组下标；intpointI=0;for(inti=0;i=this.coordinate)pointsTemppointI.X=this.noteMessagesi.X;pointsTemppointI.Y=this.noteMessagesi.Y;pointI+;points=newPointpointI;Array.Copy(pointsTemp,0,points,0,pointI);graphics.DrawLines(newPen(this.curveColor,this.curvePenWidth),points);/绘制曲线/if(this.noteNow=2)/graphics.DrawCurve(newPen(this.curveColor,this.curvePenWidth),points);/this.picCurveShow.Image=bitmap;/刷新背景网格线，显示曲线，自动添加即时数值/即时数值publicvoidShowCurve(floatValue)this.AddNewValue(Value);this.ShowCurve();#endregion#region自动将最新采样数值添加到数组/自动将最新采样数值添加到数组/最新采样数值privatevoidAddNewValue(floatnewValue)/先判断数组下标if(this.noteNow=this.maxNote-1)/数组已经存满数值for(inti=0;ithis.noteNow;i+)th