Example 031: Graph showing Subset Obstacles

1//! Note how annotation text does not overlap lines in bottom axes.
2//! Left click and drag to zoom chart.  Note how text locations change as you zoom.
3//! Left click and drag annotation text to move annotation text.
4//!
5//! This example demonstrates new annotation text positioning logic which prevents all text
6//! from overlapping.  It also shows how to 1) manually position text with an annotation,
7//! 2) allow user to move annotation text, and 3) declare subsets as obstacles so annotation text
8//! doesn't overlap subsets.  It also ahows how to change the default location where
9//! annotation text is automatically positioned.
10 
11// Pass Data
12Pego1.PeData.Subsets = 4;
13Pego1.PeData.Points = 100;
14 
15Boolean bAddAnnot;
16int nCount, p;
17String[] szs = new String[5];
18szs[0] = "High";
19szs[1] = "Medium High";
20szs[2] = "Medium";
21szs[3] = "Medium Low";
22szs[4] = "Low";
23 
24bAddAnnot = false;
25nCount = 0;
26for(p = 0; p <= 99; p++)
27{
28    Pego1.PeData.Y[0, p] = (float)(105.0F + (20 * Math.Sin(0.1 * p)) + (5 * Rand_Num.NextDouble()));
29    Pego1.PeData.Y[1, p] = (float)(105.0F + (20 * Math.Sin(0.1 * p)) + (5 * Rand_Num.NextDouble()) + 30);
30    Pego1.PeData.Y[2, p] = (float)(105.0F + (20 * Math.Sin(0.4 * p)) + (5 * Rand_Num.NextDouble()) + 30);
31    Pego1.PeData.Y[3, p] = (float)(105.0F + (20 * Math.Sin(0.1 * p)) + (5 * Rand_Num.NextDouble()) + 20);
32 
33    if(bAddAnnot)
34    {
35        Pego1.PeAnnotation.Graph.X[nCount] = p + 1;
36        Pego1.PeAnnotation.Graph.Y[nCount] = Pego1.PeData.Y[1, p];
37 
38        Pego1.PeAnnotation.Graph.Text[nCount] = szs[Convert.ToInt32(Rand_Num.NextDouble() * 4.5)];
39        Pego1.PeAnnotation.Graph.Type[nCount] = (int) GraphAnnotationType.Pointer;
40        Pego1.PeAnnotation.Graph.Axis[nCount] = 1;
41 
42        nCount = nCount + 1;
43    }
44    bAddAnnot = !bAddAnnot;
45}
46 
47// The following code manully places annotation text at separate coordinates than annotation. //
48// GraphAnnotationText has |H special justifation code which signifies that coordinates follow. //
49// Note that coordinates are split and terminated with pipe symbol. //
50Pego1.PeAnnotation.Graph.X[nCount] = 20;
51Pego1.PeAnnotation.Graph.Y[nCount] = 90;
52Pego1.PeAnnotation.Graph.Text[nCount] = "|H33.0|120.0|Text offset from pointer";
53Pego1.PeAnnotation.Graph.Type[nCount] = Convert.ToInt32(GraphAnnotationType.Pointer);
54 
55// Set Plotting Methods per Subset //
56Pego1.PePlot.Methods[0] = GraphPlottingMethods.Bar;
57Pego1.PePlot.Methods[1] = GraphPlottingMethods.Line;
58Pego1.PePlot.Methods[2] = GraphPlottingMethods.PointsPlusBestFitCurveGraphed;
59Pego1.PePlot.Methods[3] = GraphPlottingMethods.Step;
60Pego1.PePlot.Option.BestFitDegree = BestFitDegree.Fourth;
61 
62// Designate 2nd, 3rd, and 4th subset as obstacles //
63Pego1.PeAnnotation.Graph.SubsetObstacles[0] = false;
64Pego1.PeAnnotation.Graph.SubsetObstacles[1] = true;
65Pego1.PeAnnotation.Graph.SubsetObstacles[2] = true;
66Pego1.PeAnnotation.Graph.SubsetObstacles[3] = true;
67 
68// This code replaces the first default text location attempted for automatic text placement //
69// Setting to 270 causes text to be centered above annotation location if no obstacle is found //
70Pego1.PeAnnotation.Graph.TextLocation[0] = 270;
71 
72// Show annotations and allow graph hot spots and moveable annotation text //
73Pego1.PeAnnotation.Show = true;
74Pego1.PeUserInterface.HotSpot.GraphAnnotation = AnnotationHotSpot.GraphOnly;
75Pego1.PeAnnotation.Graph.Moveable = Convert.ToBoolean(GraphAnnotMoveable.Pointer);
76 
77// Split up subsets among different axes //
78Pego1.PeGrid.MultiAxesSubsets[0] = 1;
79Pego1.PeGrid.MultiAxesSubsets[1] = 3;
80Pego1.PeGrid.MultiAxesProportions[0] = 0.3F;
81Pego1.PeGrid.MultiAxesProportions[1] = 0.7F;
82 
83Pego1.PeString.MainTitle = "Drag a string";
84Pego1.PeString.SubTitle = "";
85Pego1.PeUserInterface.Allow.FocalRect = false;
86Pego1.PeGrid.LineControl = GridLineControl.None;
87Pego1.PeUserInterface.Allow.Zooming = AllowZooming.Horizontal;
88Pego1.PeUserInterface.Allow.ZoomStyle = ZoomStyle.Ro2Not;
89 
90// Subset labels //
91Pego1.PeString.SubsetLabels[0] = "Texas";
92Pego1.PeString.SubsetLabels[1] = "Florida";
93Pego1.PeString.SubsetLabels[2] = "Washington";
94Pego1.PeString.SubsetLabels[3] = "California";
95 
96// Subset colors //
97Pego1.PeColor.SubsetColors[0] = MainWindow.DemoColors[0];
98Pego1.PeColor.SubsetColors[1] = MainWindow.DemoColors[1];
99Pego1.PeColor.SubsetColors[2] = MainWindow.DemoColors[2];
100Pego1.PeColor.SubsetColors[3] = MainWindow.DemoColors[3];
101 
102// Subset line types //
103Pego1.PeLegend.SubsetLineTypes[0] = LineType.MediumSolid;
104Pego1.PeLegend.SubsetLineTypes[1] = LineType.MediumSolid;
105Pego1.PeLegend.SubsetLineTypes[2] = LineType.MediumSolid;
106Pego1.PeLegend.SubsetLineTypes[3] = LineType.MediumSolid;
107 
108// Various other features //
109Pego1.PeFont.Fixed = true;
110Pego1.PeColor.BitmapGradientMode = true;
111Pego1.PeColor.QuickStyle = QuickStyle.LightLine;
112Pego1.PeLegend.SimplePoint = true;
113Pego1.PeLegend.SimpleLine = true;
114Pego1.PeLegend.Style = LegendStyle.OneLine;
115 
116Pego1.PeFont.GraphAnnotationTextSize = 85;
117Pego1.PeUserInterface.Menu.AnnotationControl = true;
118Pego1.PePlot.MarkDataPoints = true;
119Pego1.PeGrid.Option.MultiAxisStyle = MultiAxisStyle.SeparateAxes;
120Pego1.PeUserInterface.Menu.MultiAxisStyle = MenuControl.Show;
121Pego1.PeUserInterface.Menu.LegendLocation = MenuControl.Show;
122Pego1.PePlot.Allow.Step = true;
123Pego1.PePlot.DataShadows = DataShadows.Shadows;
124 
125Pego1.PePlot.Option.GradientBars = 8;
126Pego1.PeConfigure.TextShadows = TextShadows.BoldText;
127Pego1.PeFont.MainTitle.Bold = true;
128Pego1.PeFont.SubTitle.Bold = true;
129Pego1.PeFont.Label.Bold = true;
130Pego1.PePlot.Option.LineShadows = true;
131Pego1.PeFont.FontSize = FontSize.Medium;
132Pego1.PeUserInterface.Scrollbar.PointsToGraph = 50;
133 
134Pego1.PePlot.Option.PointGradientStyle = PlotGradientStyle.RadialTopLeft;
135Pego1.PeColor.PointBorderColor = Color.FromArgb(100, 0, 0, 0);
136Pego1.PePlot.Option.LineSymbolThickness = 3;
137Pego1.PePlot.Option.AreaBorder = 1;
138 
139// Set various export defaults //
140Pego1.PeSpecial.DpiX = 600;
141Pego1.PeSpecial.DpiY = 600;
142 
143// default export setting //
144Pego1.PeUserInterface.Dialog.ExportSizeDef = ExportSizeDef.NoSizeOrPixel;
145Pego1.PeUserInterface.Dialog.ExportTypeDef = ExportTypeDef.Png;
146Pego1.PeUserInterface.Dialog.ExportDestDef = ExportDestDef.Clipboard;
147Pego1.PeUserInterface.Dialog.ExportUnitXDef = "1280";
148Pego1.PeUserInterface.Dialog.ExportUnitYDef = "768";
149Pego1.PeUserInterface.Dialog.ExportImageDpi = 300;
150 
151Pego1.PeUserInterface.Cursor.PromptTracking = true;
152Pego1.PeUserInterface.Cursor.PromptLocation = CursorPromptLocation.ToolTip;
153Pego1.PeUserInterface.Cursor.PromptStyle = CursorPromptStyle.XYValues;
154 
155Pego1.PeConfigure.RenderEngine = RenderEngine.Direct2D;
156Pego1.PeConfigure.AntiAliasGraphics = true;
157Pego1.PeConfigure.AntiAliasText = true;
158 
159Pego1.PeFunction.ReinitializeResetImage();
160Pego1.Invalidate();
161// Optionally call Pego1.Refresh() if you are not seeing changes immediately