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直接上效果图如下
public partial class WaveChartUserCtrl : UserControl { Color axisColor = Color.FromArgb(69, 200, 255);//坐标颜色 Color scaleColor = Color.FromArgb(129, 137, 156);//刻度颜色 Font axisFont = new Font("宋体", 9, FontStyle.Bold);//坐标字体 /// <summary> /// 画板宽度 /// </summary> private float boardWidth; /// <summary> /// 画板高度 /// </summary> private float boardHeight; /// <summary> /// 垂直(纵向)边距(画图区域距离左右两边长度) /// </summary> private float verticalMargin; /// <summary> /// 平行(横向)边距(画图区域距离左右两边长度) /// </summary> private float horizontalMargin; /// <summary> /// 水平间距像素 /// </summary> private float horizontalBetween; /// <summary> /// 垂直间距像素 /// </summary> private float verticalBetween; /// <summary> /// 图表区域宽度 /// </summary> float chartWidth; /// <summary> /// 图表区域高度 /// </summary> float charHeight; /// <summary> /// 画图区域起点 /// </summary> PointF startPostion; /// <summary> /// 画图区域终点 /// </summary> PointF endPostion; /// <summary> /// 左边Y轴每个间隔值 /// </summary> private int leftIntervalValueY; /// <summary> /// 右边Y抽每个间隔值 /// </summary> private int rightIntervalValueY; /// <summary> /// X轴每个间隔值 /// </summary> //private int intervalValueX; /// <summary> /// X轴刻度线数量 /// </summary> private int xScaleCount = 20; /// <summary> /// X轴刻度线数量 /// </summary> public int XscaleCount { get { return xScaleCount; } set { xScaleCount = value; } } /// <summary> /// Y轴刻度线数量 /// </summary> private int yScaleCount = 8; /// <summary> /// Y轴刻度线数量 /// </summary> public int YscaleCount { get { return yScaleCount; } } private float leftmaxValue = 300; [Category("wyl")] [Description("左边坐标最大值")] public float LeftMaxValue { get { return leftmaxValue; } set { if (value <= LeftMinValue) { MessageBox.Show("最大值不能低于最小值!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning); //maxValue = 300; } else { leftmaxValue = value; } } } private float leftminValue = 0; /// <summary> /// 仪表盘显示的最小值 /// </summary> [Category("wyl")] [Description("左边坐标最小值")] public float LeftMinValue { get { return leftminValue; } set { if (value >= LeftMaxValue) { MessageBox.Show("最小值不能超过最大值!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning); //minValue = 0; } else { leftminValue = value; } } } private float rightmaxValue = 100; [Category("wyl")] [Description("右边坐标最大值")] public float RightMaxValue { get { return rightmaxValue; } set { if (value <= RightMinValue) { MessageBox.Show("最大值不能低于最小值!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else { rightmaxValue = value; } } } private float rightminValue = 0; /// <summary> /// 仪表盘显示的最小值 /// </summary> [Category("wyl")] [Description("右边坐标最小值")] public float RightMinValue { get { return rightminValue; } set { if (value >= RightMaxValue) { MessageBox.Show("最小值不能超过最大值!", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else { rightminValue = value; //InitCanvas(); } } } private List<Color> lineColor = new List<Color> { Color.Red, Color.FromArgb(0, 192, 0) }; [Category("wyl")] [Description("线条颜色")] public List<Color> LineColor { get { return lineColor; } set { if (value != null && value.Count > 1) { lineColor = value; } } } /// <summary> /// 显示文字 /// </summary> string titlText1 = ""; /// <summary> /// 显示文字 /// </summary> [Category("wyl")] [Description("标题1")] public string TitlText1 { get { return titlText1; } set { titlText1 = value; } } /// <summary> /// 显示文字 /// </summary> string titlText2 = ""; /// <summary> /// 显示文字 /// </summary> [Category("wyl")] [Description("标题2")] public string TitlText2 { get { return titlText2; } set { titlText2 = value; } } /// <summary> /// 数据源1 /// </summary> private Series SeriesData1 = new Series(); /// <summary> /// 数据源2 /// </summary> private Series SeriesData2 = new Series(); /// <summary> /// 真实画布宽度为画板的80% ,其余部分预留。 /// </summary> private float canvasWidth; /// <summary> /// 最大X抽坐标为24H,最后记录一分钟记录一次 /// </summary> private int MaxXScaleCount = 720;//24 * 60 / 2;//2秒通讯一次,最大每一分钟记录一次 //private List<float> dataLst1 = new List<float>(); //private List<float> dataLst2 = new List<float>(); public DateTime startTime = DateTime.Now; public void InitCanvas() { boardWidth = this.ClientSize.Width; boardHeight = this.ClientSize.Height; horizontalMargin = 40; verticalMargin = 40; chartWidth = boardWidth - 2 * horizontalMargin;//画图区域宽度 charHeight = boardHeight - 2 * verticalMargin; //画图区域高度,axisY 避免与X轴重合 canvasWidth = chartWidth * 0.86F;//实际画布为画板的80% startPostion = new PointF(horizontalMargin, verticalMargin); endPostion = new PointF(boardWidth - horizontalMargin, boardHeight - verticalMargin); //SeriesData1.LineColor = Color.Red; //SeriesData2.LineColor = Color.FromArgb(0, 192, 0); } public WaveChartUserCtrl() { InitializeComponent(); this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.DoubleBuffer, true); InitCanvas(); } /// <summary> /// 画图 /// </summary> /// <param name="gp"></param> private void Drawing(Graphics gs) { System.Diagnostics.Stopwatch runstopwatch = new System.Diagnostics.Stopwatch(); runstopwatch.Start(); if (SeriesData1.Datas.Count > 20) { XscaleCount = SeriesData1.Datas.Count; } horizontalBetween = canvasWidth / XscaleCount; verticalBetween = charHeight / YscaleCount; //intervalValueX = 1;// leftIntervalValueY = (int)(LeftMaxValue - LeftMinValue) / YscaleCount; rightIntervalValueY = (int)(RightMaxValue - RightMinValue) / YscaleCount; try { StringFormat strFmt = new System.Drawing.StringFormat(); strFmt.Alignment = StringAlignment.Center; //文本水平居中 strFmt.LineAlignment = StringAlignment.Center; //文本垂直居中 Pen axisPen = new Pen(scaleColor, 1.0F);//坐标文字 Bitmap bit = new Bitmap((int)boardWidth, (int)boardHeight); Graphics g = Graphics.FromImage(bit); //g.DrawString(TitlText, new Font("宋体", 9, FontStyle.Bold), new SolidBrush(SeriesData1.LineColor), 5, 10); float tempEndPointY = endPostion.Y; //Y轴格 for (int i = 0; i <= YscaleCount; i++) { float y = tempEndPointY - i * verticalBetween; g.DrawLine(axisPen, startPostion.X, y, endPostion.X, y); string leftText = (LeftMinValue + (i * leftIntervalValueY)).ToString(); SizeF sf = g.MeasureString(leftText, axisFont); RectangleF rf = new RectangleF(startPostion.X - 30, y - sf.Height / 2, 30, sf.Height); g.DrawString(leftText, axisFont, new SolidBrush(LineColor[0]), rf, strFmt); string rightText = (RightMinValue + (i * rightIntervalValueY)).ToString(); sf = g.MeasureString(rightText, axisFont); RectangleF rf1 = new RectangleF(endPostion.X + 5, y - sf.Height / 2, 30, sf.Height); g.DrawString(rightText, axisFont, new SolidBrush(LineColor[1]), rf1, strFmt); } //画曲线 if (SeriesData1 != null) { strFmt.Alignment = StringAlignment.Near; // RectangleF rf = new RectangleF(0, 0, 70, 30); g.DrawString(TitlText1, new Font("宋体", 10, FontStyle.Bold), new SolidBrush(LineColor[0]), rf, strFmt); //计算0值的坐标 int tempv = (int)((Math.Abs(LeftMinValue) - 0) / leftIntervalValueY);//得到0到最小值的间隔距离; float zeroY = tempEndPointY - tempv * verticalBetween;//值为0点Y抽坐标; if (SeriesData1.Datas.Count > 1) { int dataIndex = 0; PointF[] arrDataPoint = new PointF[SeriesData2.Datas.Count]; int index = 0; foreach (PointF pf in SeriesData1.Datas) { PointF p = new PointF(); p.X = startPostion.X + horizontalBetween * index; p.Y = zeroY - verticalBetween * pf.Y / leftIntervalValueY; arrDataPoint[dataIndex++] = p; index++; } g.DrawCurve(new Pen(new SolidBrush(LineColor[0]), 2F), arrDataPoint); PointF[] AreaPf = new PointF[arrDataPoint.Length + 2]; int AreaIndxe = 0; AreaPf[AreaIndxe++] = new PointF(startPostion.X, zeroY); foreach (PointF p in arrDataPoint) { AreaPf[AreaIndxe++] = p; } AreaPf[AreaIndxe++] = new PointF(arrDataPoint[arrDataPoint.Length - 1].X, zeroY); g.FillPolygon(new SolidBrush(Color.FromArgb(50, LineColor[0])), AreaPf); //g.FillClosedCurve(new SolidBrush(Color.FromArgb(50, SeriesData1.LineColor)), AreaPf); //g.DrawEllipse(new Pen(Brushes.Red), startPostion.X, zeroY, 10, 10); } } if (SeriesData2 != null) { strFmt.Alignment = StringAlignment.Far; // RectangleF rf = new RectangleF(boardWidth - 70, 0, 70, 30); g.DrawString(TitlText2, new Font("宋体", 10, FontStyle.Bold), new SolidBrush(LineColor[1]), rf, strFmt); //计算0值的坐标 int tempv = (int)((Math.Abs(RightMinValue) - 0) / rightIntervalValueY);//得到0到最小值的间隔距离; float zeroY = tempEndPointY - tempv * verticalBetween;//值为0点Y抽坐标; if (SeriesData2.Datas.Count > 1) { int dataIndex = 0; PointF[] arrDataPoint = new PointF[SeriesData2.Datas.Count]; int index = 0; foreach (PointF pf in SeriesData2.Datas) { PointF p = new PointF(); p.X = startPostion.X + horizontalBetween * index; p.Y = zeroY - verticalBetween * pf.Y / rightIntervalValueY; arrDataPoint[dataIndex++] = p; index++; } g.DrawCurve(new Pen(new SolidBrush(LineColor[1]), 2F), arrDataPoint); PointF[] AreaPf = new PointF[arrDataPoint.Length + 2]; int AreaIndxe = 0; AreaPf[AreaIndxe++] = new PointF(startPostion.X, zeroY); foreach (PointF p in arrDataPoint) { AreaPf[AreaIndxe++] = p; } AreaPf[AreaIndxe++] = new PointF(arrDataPoint[SeriesData2.Datas.Count - 1].X, zeroY); g.FillPolygon(new SolidBrush(Color.FromArgb(50, LineColor[1])), AreaPf); } } g.DrawString(startTime.ToString("HH:mm:ss"), new Font("宋体", 10, FontStyle.Regular), Brushes.White, 10, this.ClientSize.Height - 30); g.DrawString(DateTime.Now.ToString("HH:mm:ss"), new Font("宋体", 10, FontStyle.Regular), Brushes.White, this.ClientSize.Width - 80, this.ClientSize.Height - 30); g.DrawString("Time/H", new Font("宋体", 12, FontStyle.Regular), Brushes.Wheat, 0, this.ClientSize.Height - 15); gs.DrawImage(bit, 0, 0); g.Dispose(); runstopwatch.Stop(); TimeSpan timespan = runstopwatch.Elapsed; Console.WriteLine("Drawing:" + timespan.ToString()); } catch (Exception ex) { Console.WriteLine(ex.Message); } } private void WaveChartUserCtrl_Resize(object sender, EventArgs e) { InitCanvas(); this.Refresh(); } private void WaveChartUserCtrl_Paint(object sender, PaintEventArgs e) { Drawing(e.Graphics); } public void AddSeriesData(List<float> dataLst1, List<float> dataLst2) { //System.Diagnostics.Stopwatch runstopwatch = new System.Diagnostics.Stopwatch(); //runstopwatch.Start(); //dataLst1.Add(y1); //dataLst2.Add(y2); //if (dataLst1.Count > 86400) //{ // dataLst1.RemoveAt(0); //} //if (dataLst2.Count > 86400) //{ // dataLst2.RemoveAt(0); //} int tempx = dataLst1.Count / MaxXScaleCount + 1; SeriesData1.Datas.Clear(); for (int index = 0; index < dataLst1.Count; index++) { PointF p1 = new PointF(0, dataLst1[index]); if (index % tempx == 0 || index == dataLst1.Count) { SeriesData1.Datas.Add(p1); } } SeriesData2.Datas.Clear(); for (int index = 0; index < dataLst2.Count; index++) { PointF p2 = new PointF(0, dataLst2[index]); if (index % tempx == 0 || index == dataLst2.Count) { SeriesData2.Datas.Add(p2); } } //runstopwatch.Stop(); //TimeSpan timespan = runstopwatch.Elapsed; //Console.WriteLine(timespan.ToString()); //this.Refresh(); } } /// <summary> /// 数据系列管理 /// </summary> public class Series { /// <summary> /// 标题 /// </summary> public string HeadText = "title"; Color lineColor = Color.Red; /// <summary> /// 当前画笔颜色 /// </summary> public Color LineColor { get { return lineColor; } set { lineColor = value; } } public List<PointF> Datas = new List<PointF>(); }
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