Example 020: Graph showing Real-Time PEpartialresetimage

1//! Rarely needed but can help when application needs many charts, each with many points, all updating.
2 
3// No Flicker //
4Pego1.PeConfigure.PrepareImages = true;
5Pego1.PeConfigure.CacheBmp = true;        //! Important for PartialResetImage to work.
6 
7Pego1.PeSpecial.AutoImageReset = false;   //! Also important for this type of real-time
8Pego1.PeData.SpeedBoost = 0;
9Pego1.PeUserInterface.Cursor.HourGlassThreshold = 40000;
10 
11// Set Subsets and Points //
12Pego1.PeData.Subsets = 2;
13Pego1.PeData.Points = 15000;
14 
15// Pass 80% of the data, first one subset, then next subset //
16float[] MyYData = new float[12000];
17int p;
18 
19for(p=0; p<12000; p++)
20    MyYData[p] = (float)((System.Math.Sin(0.003 * p) * 500.0) + ((Rand_Num.NextDouble()) * 50));
21 
22// Perform the transfer of data, first subset //
23Pego1.PeData.Y.FastCopyFrom(MyYData, 0, 12000);
24 
25Random New_Rand = new Random(unchecked((int)DateTime.Now.Ticks));
26for(p=0; p<12000; p++ )
27    MyYData[p] = (float)((System.Math.Cos(0.003 * p) * 500.0) + ((float)(New_Rand.NextDouble()) * 50));
28 
29// Perform the transfer of data, second subset //
30Pego1.PeData.Y.FastCopyFrom(MyYData, 1, 12000);
31// for comparison this is same as calling Api.PEvsetEx(Pego1.PeSpecial.HObject, DllProperties.YData, 15000, 12000, MyYData, ref dat);
32 
33// Setting last point label first allocates memory and speeds up subsequent logic //'
34Pego1.PeString.PointLabels[11999] = " ";
35 
36for(p=0; p<12000; p++)
37    Pego1.PeString.PointLabels[p] = "Test" + System.Convert.ToString(p + 1);
38 
39// Set up two axes, just because it's easy ///
40Pego1.PeGrid.MultiAxesSubsets[0] = 1;
41Pego1.PeGrid.MultiAxesSubsets[1] = 1;
42Pego1.PeGrid.Option.MultiAxisStyle = MultiAxisStyle.SeparateAxes;
43 
44// Manually configure top scale scale //
45Pego1.PeGrid.WorkingAxis = 0;
46Pego1.PeGrid.Configure.ManualScaleControlY = ManualScaleControl.MinMax;
47Pego1.PeGrid.Configure.ManualMinY = -600;
48Pego1.PeGrid.Configure.ManualMaxY = 600;
49 
50// Manually configure bottom scale scale //
51Pego1.PeGrid.WorkingAxis = 1;
52Pego1.PeGrid.Configure.ManualScaleControlY = ManualScaleControl.MinMax;
53Pego1.PeGrid.Configure.ManualMinY = -600;
54Pego1.PeGrid.Configure.ManualMaxY = 600;
55 
56// Real-Time related properties for Graph Objects //
57Pego1.PeGrid.Configure.ManualMaxPointLabel = "Test XXXXXXX";
58Pego1.PeGrid.Configure.ManualMaxDataString = "12345";
59 
60// Set Various Other Properties //
61Pego1.PeString.MainTitle = "Graph Real Time Example";
62Pego1.PeString.SubTitle = ""; // no subtitle
63Pego1.PePlot.Method = GraphPlottingMethod.Line;
64Pego1.PeUserInterface.Menu.PlotMethod = MenuControl.Hide;
65Pego1.PeUserInterface.Dialog.PlotCustomization = false;
66Pego1.PeUserInterface.Allow.FocalRect = false;
67Pego1.PeData.Precision = DataPrecision.OneDecimal;
68Pego1.PeFont.Fixed = true;
69Pego1.PeFont.FontSize = FontSize.Medium;
70 
71Pego1.PeLegend.SubsetLineTypes[0] = LineType.ThinSolid;
72Pego1.PeLegend.SubsetLineTypes[1] = LineType.ThinSolid;
73 
74Pego1.PeUserInterface.Allow.Zooming = AllowZooming.HorzAndVert;
75Pego1.PeUserInterface.Allow.ZoomStyle = ZoomStyle.Ro2Not;
76 
77Pego1.PeColor.BitmapGradientMode = true;
78Pego1.PeColor.QuickStyle = QuickStyle.DarkNoBorder;
79 
80Pego1.PeColor.SubsetColors[0] = MainWindow.DemoColors[0];
81Pego1.PeColor.SubsetColors[1] = MainWindow.DemoColors[1];
82 
83Pego1.PeLegend.Style = LegendStyle.OneLineInsideAxis;
84Pego1.PeGrid.LineControl = GridLineControl.YAxis;
85Pego1.PeUserInterface.Allow.MultiAxesSizing = true;
86Pego1.PeConfigure.BorderTypes = TABorder.Inset;
87Pego1.PeUserInterface.Allow.ZoomStyle = ZoomStyle.FramedRect;
88 
89// Set various export defaults //
90Pego1.PeSpecial.DpiX = 600;
91Pego1.PeSpecial.DpiY = 600;
92 
93// default export setting //
94Pego1.PeUserInterface.Dialog.ExportSizeDef = ExportSizeDef.NoSizeOrPixel;
95Pego1.PeUserInterface.Dialog.ExportTypeDef = ExportTypeDef.Png;
96Pego1.PeUserInterface.Dialog.ExportDestDef = ExportDestDef.Clipboard;
97Pego1.PeUserInterface.Dialog.ExportUnitXDef = "1280";
98Pego1.PeUserInterface.Dialog.ExportUnitYDef = "768";
99Pego1.PeUserInterface.Dialog.ExportImageDpi = 300;
100Pego1.PeUserInterface.Dialog.AllowEmfExport = false;
101Pego1.PeUserInterface.Dialog.AllowWmfExport = false;
102 
103Pego1.PeFunction.ReinitializeResetImage();
104Pego1.Invalidate();
105Pego1.Refresh();
106// Optionally call Pego1.Refresh() if you are not seeing changes immediately
107 
108MainWindow.m_nRealTimeCounter = 12000;
109MainWindow.m_nSinCounter = 12000;
110 
111MainWindow.Timer1.Interval = 50;
112MainWindow.Timer1.Start();
113 
114/*///////////////////////////////////////////////////////
115// the following code can be found in the Timer Event //
116////////////////////////////////////////////////////////
117 
118private void Timer1_Tick(object sender, System.EventArgs e)
119{
120    // Graph Real Time Feed using PEpartialresetimage //
121 
122    if( m_nRealTimeCounter >= 15000)
123    {
124        // When we reach the end of our data, we shift 20% to the
125        // left and make room for another 3000 quick updates.
126        float[] dat = new float[6000];
127        Pego1.PeString.PointLabels.AppendData(3000); // only shift
128        Pego1.PeData.Y.AppendData(dat, 3000);  // appends 3000 pt per subset with zero, the default nulldatavalue
129 
130        // We need to perform a complete image update here.
131        Pego1.PeFunction.ResetImage(0, 0);
132        Pego1.Invalidate();
133        Pego1.Update();
134 
135        m_nRealTimeCounter = 12000;
136    }
137 
138    // First Subset //
139    Pego1.PeData.Y[0, m_nRealTimeCounter] = (float)((System.Math.Sin(0.003 * m_nSinCounter) * 500.0));
140 
141    // Second Subset //
142    Pego1.PeData.Y[1, m_nRealTimeCounter] = (float)((System.Math.Cos(0.003 * m_nSinCounter) * 500.0));
143 
144    // Set an example string associated with data //
145    Pego1.PeString.PointLabels[m_nRealTimeCounter] = "Test" + System.Convert.ToString(m_nSinCounter);
146 
147    // This call performs a quick partial draw to an internal cached bmp //'
148    Pego1.PeFunction.PartialResetImage(m_nRealTimeCounter, 1);
149 
150    // For comparison purposes, you can uncomment the line below //
151    // Calling PEresetimage with each timer event causes CPU usage to go to 100%
152    // PEpartialresetimage allows the same visual output while using 2% or less of the CPU
153    //--- Pego1.PeFunction.ResetImage(0, 0)
154 
155    Pego1.Invalidate(rc);
156 
157    m_nRealTimeCounter = m_nRealTimeCounter + 1;
158    m_nSinCounter = m_nSinCounter + 1;
159}
160*/