Example 108: Scientific Graph showing inverted y axis

1Pesgo1.PeData.Subsets = 1;
2Pesgo1.PeData.Points = 24;
3 
4// Make sure zeros are plotted //
5Pesgo1.PeData.NullDataValueX = -999;
6Pesgo1.PeData.NullDataValue = -999;
7 
8// Invert polarity of Y axis //
9Pesgo1.PeGrid.Option.InvertedYAxis = true;
10 
11// Pass data and since InvertedYAxis = true then make sure YData is //
12// multiplied by -1 //
13int p;
14for (p = 0; p <= 23; p++)
15{
16    Pesgo1.PeData.X[0, p] = p * 10;
17    Pesgo1.PeData.Y[0, p] = (float)(-1.0 * (0 + (Math.Sin(p * 0.074) * 60) + (p / 2)));
18}
19 
20// ================================================================
21// MANUAL SCALING WITH INVERTED Y AXIS
22// ================================================================
23// When InvertedYAxis = true, all Y coordinates stay in NEGATIVE
24// space. The axis DISPLAYS them as positive. So to show a visible
25// range of 0 to 80 on the inverted axis, set ManualMinY/ManualMaxY
26// to their negative equivalents:
27//
28//   Displayed axis:    0 (top)  ...  80 (bottom)
29//   Actual values:     0 (top)  ... -80 (bottom)
30//
31Pesgo1.PeGrid.Configure.ManualScaleControlY = ManualScaleControl.MinMax;
32Pesgo1.PeGrid.Configure.ManualMinY = -80;  // bottom of chart (displays as 80)
33Pesgo1.PeGrid.Configure.ManualMaxY = 5;    // top of chart (displays as 5)
34 
35// ================================================================
36// GRAPH ANNOTATIONS WITH INVERTED Y AXIS
37// ================================================================
38// Graph annotation Y coordinates must also be negative, matching
39// the actual data space. The axis relabeling is display-only.
40//
41int aCnt = 0;
42 
43// Horizontal band from displayed 20 to 40 (actual -20 to -40)
44Pesgo1.PeAnnotation.Graph.X[aCnt] = 20;     // X start
45Pesgo1.PeAnnotation.Graph.Y[aCnt] = -20;    // TopLeft Y (negative!)
46Pesgo1.PeAnnotation.Graph.Type[aCnt] = (int)GraphAnnotationType.TopLeft;
47Pesgo1.PeAnnotation.Graph.Color[aCnt] = Color.Transparent;
48Pesgo1.PeAnnotation.Graph.Text[aCnt] = "";
49aCnt++;
50 
51Pesgo1.PeAnnotation.Graph.X[aCnt] = 200;    // X end
52Pesgo1.PeAnnotation.Graph.Y[aCnt] = -40;    // BottomRight Y (negative!)
53Pesgo1.PeAnnotation.Graph.Type[aCnt] = (int)GraphAnnotationType.BottomRight;
54Pesgo1.PeAnnotation.Graph.Color[aCnt] = Color.Transparent;
55Pesgo1.PeAnnotation.Graph.Text[aCnt] = "";
56aCnt++;
57 
58Pesgo1.PeAnnotation.Graph.X[aCnt] = 0;
59Pesgo1.PeAnnotation.Graph.Y[aCnt] = 0;
60Pesgo1.PeAnnotation.Graph.Type[aCnt] = (int)GraphAnnotationType.RectFill;
61Pesgo1.PeAnnotation.Graph.Color[aCnt] = Color.FromArgb(40, 255, 0, 0);
62Pesgo1.PeAnnotation.Graph.Text[aCnt] = "";
63aCnt++;
64 
65// Labeled dot at displayed depth 30 (actual Y = -30)
66Pesgo1.PeAnnotation.Graph.X[aCnt] = 110;
67Pesgo1.PeAnnotation.Graph.Y[aCnt] = -30;    // negative!
68Pesgo1.PeAnnotation.Graph.Type[aCnt] = (int)GraphAnnotationType.SmallDotSolid;
69Pesgo1.PeAnnotation.Graph.Color[aCnt] = Color.FromArgb(255, 200, 0, 0);
70Pesgo1.PeAnnotation.Graph.Text[aCnt] = "|fTarget Depth: 30 ft";
71aCnt++;
72 
73Pesgo1.PeAnnotation.Graph.Show = true;
74Pesgo1.PeAnnotation.Show = true;
75 
76// Change Titles and Labels //
77Pesgo1.PeString.MainTitle = "Drilling Depth";
78Pesgo1.PeString.SubTitle = "";
79Pesgo1.PeString.YAxisLabel = "Depth (ft)";
80Pesgo1.PeString.XAxisLabel = "Minutes";
81 
82// Set Various Other Properties //
83Pesgo1.PeColor.BitmapGradientMode = true;
84Pesgo1.PeColor.QuickStyle = QuickStyle.LightInset;
85 
86Pesgo1.PeColor.SubsetColors[0] = Color.FromArgb(255, 20, 188, 198);
87Pesgo1.PeLegend.SubsetLineTypes[0] = LineType.MediumSolid;
88Pesgo1.PePlot.MarkDataPoints = false;
89Pesgo1.PeConfigure.PrepareImages = true;
90Pesgo1.PeUserInterface.Allow.ZoomStyle = ZoomStyle.Ro2Not;
91 
92Pesgo1.PePlot.Option.GradientBars = 8;
93Pesgo1.PeConfigure.TextShadows = TextShadows.BoldText;
94Pesgo1.PeFont.MainTitle.Bold = true;
95Pesgo1.PeFont.SubTitle.Bold = true;
96Pesgo1.PeFont.Label.Bold = true;
97Pesgo1.PePlot.Option.LineShadows = true;
98Pesgo1.PeFont.FontSize = FontSize.Medium;
99Pesgo1.PeUserInterface.Scrollbar.ScrollingHorzZoom = true;
100Pesgo1.PePlot.Method = SGraphPlottingMethod.PointsPlusLine;
101 
102// v7.2 new features //
103Pesgo1.PePlot.Option.PointGradientStyle = PlotGradientStyle.VerticalAscentInverse;
104Pesgo1.PeColor.PointBorderColor = Color.FromArgb(100, 0, 0, 0);
105Pesgo1.PePlot.Option.LineSymbolThickness = 3;
106Pesgo1.PePlot.Option.AreaBorder = 1;
107 
108// Set various export defaults //
109Pesgo1.PeSpecial.DpiX = 600;
110Pesgo1.PeSpecial.DpiY = 600;
111 
112// default export setting //
113Pesgo1.PeUserInterface.Dialog.ExportSizeDef = ExportSizeDef.NoSizeOrPixel;
114Pesgo1.PeUserInterface.Dialog.ExportTypeDef = ExportTypeDef.Png;
115Pesgo1.PeUserInterface.Dialog.ExportDestDef = ExportDestDef.Clipboard;
116Pesgo1.PeUserInterface.Dialog.ExportUnitXDef = "1280";
117Pesgo1.PeUserInterface.Dialog.ExportUnitYDef = "768";
118Pesgo1.PeUserInterface.Dialog.ExportImageDpi = 300;
119 
120// v9 features
121Pesgo1.PeUserInterface.Cursor.PromptTracking = true;
122Pesgo1.PeUserInterface.Cursor.PromptStyle = CursorPromptStyle.XYValues;
123Pesgo1.PeUserInterface.Cursor.PromptLocation = CursorPromptLocation.ToolTip;
124 
125Pesgo1.PeConfigure.RenderEngine = RenderEngine.Direct2D;
126Pesgo1.PeConfigure.AntiAliasGraphics = true;
127Pesgo1.PeConfigure.AntiAliasText = true;
128 
129// Generally call ReinitializeResetImage at end **'
130Pesgo1.PeFunction.ReinitializeResetImage();
131Pesgo1.Invalidate();
132// Optionally call Pego1.Refresh() if you are not seeing changes immediately