zedGraph画多个图表
Posted 苦力劳动者
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起初是想到用多个zedGraph做。然后实际做的时候 zedGraph的同步一直做的不好。尤其当采样速度很快的时候很难保持好。甚至会出现界面假死和卡死的现象。
因此想用其他解决方法：
查看资料后 发现了zedGraph的MasterPane： 它允许一个zedGraph控件 绘制多张Graphpane。并且只要zedGraphControl1.IsSynchronizeXAxes = true;就能实现两张Graphpane的轴同步。因此只需控制一个zedGraph就好。高效方便许多。
实验代码如下：
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using OfficeOpenXml; using OfficeOpenXml.Drawing; using OfficeOpenXml.Drawing.Chart; using OfficeOpenXml.Style; using System.IO; using ZedGraph; using System.Threading; namespace WindowsFormsApplication5 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } int count = 0; private void timer1_Tick(object sender, EventArgs e) { //zedGraphControl1.GraphPane.XAxis.Scale.MaxAuto = true; itime++; this.zedGraphControl1.AxisChange(); this.zedGraphControl1.Refresh(); this.zedGraphControl2.AxisChange(); this.zedGraphControl2.Refresh(); //if (list1 != null) //{ // if (itime >= 100) // { // zedGraphControl1.GraphPane.XAxis.Scale.Min = (double)itime - 100; // zedGraphControl1.GraphPane.XAxis.Scale.Max = (double)itime; // RefreshGraph(zedGraphControl1); // //zedGraphControl2.GraphPane.XAxis.Scale.Min = (double)itime - 100; // //zedGraphControl2.GraphPane.XAxis.Scale.Max = (double)itime; // //RefreshGraph(zedGraphControl2); // } //} } private void Form1_Load(object sender, EventArgs e) { initZedGraph(zedGraphControl1); Task task = new Task(new Action(sampling)); task.Start(); } private PointPairList list1 = new PointPairList(); //AD1的点 private PointPairList list2 = new PointPairList(); //AD2的点 private PointPairList list3 = new PointPairList(); private PointPairList list4 = new PointPairList(); //AD1的点 private PointPairList list5 = new PointPairList(); //AD2的点 private PointPairList list6 = new PointPairList(); private PointPairList list7 = new PointPairList(); //AD1的点 private PointPairList list8= new PointPairList(); //AD2的点 private PointPairList list9 = new PointPairList(); private void initZedGraph(ZedGraphControl zedgraph) { MasterPane master = zedgraph.MasterPane; master.Fill = new Fill(Color.White, Color.FromArgb(220, 220, 255), 45.0f); master.PaneList.Clear(); master.Title.IsVisible = true; master.Title.Text = "测头调试曲线图"; master.Margin.All = 10; master.InnerPaneGap = 0; ColorSymbolRotator rotator = new ColorSymbolRotator(); for (int j = 0; j < 2; j++) { GraphPane myPaneT = new GraphPane(new Rectangle(40, 40, 250, 500), "Case #" + (j + 1).ToString(), "时间", "电压"); //GraphPane myPaneT = new GraphPane(new Rectangle(40, 40, 500, 250), // "Case #" + (j + 1).ToString(), // "时间", // "电压"); myPaneT.Fill.IsVisible = false; myPaneT.Chart.Fill = new Fill(Color.White, Color.SteelBlue, 45.0F); myPaneT.BaseDimension = 2.0F; myPaneT.XAxis.Title.IsVisible = false; myPaneT.XAxis.Scale.IsVisible = false; myPaneT.Legend.IsVisible = false; myPaneT.Border.IsVisible = false; myPaneT.Title.IsVisible = false; myPaneT.XAxis.MajorTic.IsOpposite = false; myPaneT.XAxis.MinorTic.IsOpposite = false; myPaneT.XAxis.MajorTic.IsOutside = false; myPaneT.XAxis.MinorTic.IsOutside = false; myPaneT.XAxis.MajorGrid.IsVisible = true; myPaneT.XAxis.MinorGrid.IsVisible = true; myPaneT.XAxis.Scale.Max = 100; myPaneT.XAxis.Scale.Min = 0; myPaneT.YAxis.Title.Text = "距离(μm)"; myPaneT.YAxis.Title.FontSpec.Size = 5; myPaneT.YAxis.Scale.Max = 3500; myPaneT.YAxis.Scale.Min = -3500; myPaneT.YAxis.Scale.MajorStep = 1000; myPaneT.YAxis.MajorTic.IsOpposite = false; myPaneT.YAxis.MinorTic.IsOpposite = false; //小刻度 myPaneT.YAxis.Scale.Align = AlignP.Inside; myPaneT.Y2Axis.Title.Text = "电压值"; myPaneT.Y2Axis.Title.FontSpec.Size = 5; myPaneT.Y2Axis.Scale.Max = 4; myPaneT.Y2Axis.Scale.Min = -4; myPaneT.Y2Axis.Scale.MajorStep = 1; myPaneT.Y2Axis.Scale.FontSpec.FontColor = Color.Black; myPaneT.Y2Axis.Title.FontSpec.FontColor = Color.Black; myPaneT.Y2Axis.MajorTic.IsOpposite = false; myPaneT.Y2Axis.MinorTic.IsOpposite = false; myPaneT.Y2Axis.Scale.Align = AlignP.Inside; myPaneT.Y2Axis.IsVisible = true; myPaneT.Margin.All = 1; // Graphpane之间的间隔边缘距离 myPaneT.YAxis.Scale.FontSpec.Size = 4; myPaneT.Y2Axis.Scale.FontSpec.Size = 4; if (j == 0) { myPaneT.Title.Text = "上测头"; LineItem Curve1 = myPaneT.AddCurve("电压1", list1, Color.Yellow, SymbolType.None); LineItem Curve2 = myPaneT.AddCurve("电压2", list2, Color.Green, SymbolType.None); LineItem Curve3 = myPaneT.AddCurve("电压3", list3, Color.Red, SymbolType.None); Curve1.IsY2Axis = true; Curve2.IsY2Axis = true; } if (j == 1) { myPaneT.Title.Text = "下测头"; LineItem Curve1 = myPaneT.AddCurve("电压1", list4, Color.Yellow, SymbolType.None); LineItem Curve2 = myPaneT.AddCurve("电压2", list5, Color.Green, SymbolType.None); LineItem Curve3 = myPaneT.AddCurve("电压3", list6, Color.Red, SymbolType.None); Curve1.IsY2Axis = true; Curve2.IsY2Axis = true; } master.Add(myPaneT); // zedgraph.MasterPane[0].Chart.Rect = new RectangleF(100, 100, 200, 200); zedgraph.AxisChange(); if (j > 0) { myPaneT.YAxis.Scale.IsSkipLastLabel = true; myPaneT.YAxis.Scale.IsSkipLastLabel = true; myPaneT.YAxis.MinSpace = 10; myPaneT.Y2Axis.MinSpace = 10; } } using (Graphics g = zedgraph.CreateGraphics()) { ZedGraphControl z1 = zedgraph; master.SetLayout(g, PaneLayout.SingleColumn); z1.AxisChange(); z1.IsAutoScrollRange = true; z1.IsShowHScrollBar = true; z1.IsShowVScrollBar = true; z1.IsSynchronizeXAxes = true; } } long itime = 0; private void sampling() { while (true) { Random rd = new Random(); //list1.Add((double)itime, rd.Next(1, 4)); //list2.Add((double)itime, rd.Next(1, 4)); //list4.Add((double)itime, rd.Next(1, 4)); //list5.Add((double)itime, rd.Next(1, 4)); //list3.Add((double)itime, rd.Next(1, 4000)); //list6.Add((double)itime, rd.Next(1, 4000)); //if (itime%1000000==0) //{ list1.Add((double)itime, rd.Next(1, 4)); list2.Add((double)itime, rd.Next(1, 4)); list4.Add((double)itime, rd.Next(1, 4)); list5.Add((double)itime, rd.Next(1, 4)); list3.Add((double)itime, rd.Next(1, 4000)); list6.Add((double)itime, rd.Next(1, 4000)); itime++; if (itime > 10000) { itime = 0; list1.Clear(); list2.Clear(); list4.Clear(); list5.Clear(); list3.Clear(); list6.Clear(); } if (itime >= 100) { Thread.Sleep(1); zedGraphControl1.MasterPane[0].XAxis.Scale.Min = (double)itime - 100; zedGraphControl1.MasterPane[0].XAxis.Scale.Max = (double)itime; zedGraphControl1.MasterPane[1].XAxis.Scale.Min = (double)itime - 100; zedGraphControl1.MasterPane[1].XAxis.Scale.Max = (double)itime; RefreshGraph(zedGraphControl1); } } } private delegate void RefreshDelegate(); private void RefreshGraph(ZedGraphControl zg) { if (zg == null) return; //判断是否是非创建控件的线程调用控件 if (zg.InvokeRequired) { RefreshDelegate a = new RefreshDelegate(new Action(() => { zg.Invalidate(); })); zg.BeginInvoke(a); } else { zg.AxisChange(); zg.Invalidate(); zg.Refresh(); } } } }
invalidate是收到命令选取合适的时机再刷新
refresh是强制重绘 refresh= invalidate+update
问题： 这里采用的是通常的竖直排列的图表形式。改成水平的话 Graphpane的大小不好控制。改不好 ？？
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