Real-time curve component 2.0

Introduction:

The real-time curve component displays collected data based on curves and can be used in industrial real-time detection and other related fields.

This component supports simultaneous display of multiple curves;

It also supports display and processing of later data;

The multi-chart comparison function is also provided.

The most important thing is to support the zoom display function, which allows you to infinitely zoom in the desired position for viewing.

 

Development Environment: Visual Studio. NET 2005

Relationship diagram:

Custom Attributes:

Attribute name	Type	Description
Allowzoom	Bool	Whether scaling is allowed
Axisnamex	String	X axis title
Axisnamey	String	Y axis title
Axiscolor	Color	Coordinate dial color
Dataseries	Collection	A set of curve data and a set of the plotinfomation class.
Maginleft	Int	Size of the left boundary
Magintop	Int	Upper Boundary size
Maginright	Int	Size of the right boundary
Maginbuttom	Int	Bottom Boundary size
Offsetx	Int	The relative offset of each curve on the X axis when multiple curves are displayed.
Offsety	Int	The relative offset of each curve on the Y axis when multiple curves are displayed.

The attributes of plotinfomation are as follows:

Attribute name	Type	Description
Linecolor	Color	Curve color
Linewidth	Int	Curve width
Datapoints	List <float>	Curve data point
Linedashstyle	Dashstyle	Curve Line
Name	String	Curve name
Pointcountperminute	Int	Number of data points per minute
Visible	Bool	Visible or not

Method:

Method Name	Description
Virtual void savedatapoint (binarywriter BW)	Store curve data in binary format
Virtual void savedatapoint (streamwriter tw)	Save curve data in text
Virtual void loaddatapoint (binaryreader BW)	Reading curve data from binary files
Virtual void loaddatapoint (streamreader tw)	Reading curve data from text files
Void saveimage (string filename)	Save the current image to a specified bitmap file
Virtual void saveimage (Graphics g)	Save the current image to a specified graphics object
Void updaterootrect (float X, float y, float width, float height)	Set the coordinate range of the bottom layer of the image. The horizontal direction is time, and the Unit is minute. The vertical direction is numeric, and a negative value is supported.

Example:

1. Using
   System;
2. Using
   System. Collections. Generic;
3. Using
   System. componentmodel;
4. Using
   System. Data;
5. Using
   System. drawing;
6. Using
   System. text;
7. Using
   System. Windows. forms;
8. Using
   System. IO;
10. Namespace
    System. shangfei. Drawing. Plot
11. {
12. 
    /// <Summary>
13. 
    ///
14. 
    /// </Summary>
15. 
    Public
    Partial
    Class
    Form1: Form
16. {
17. 
    /// <Summary>
18. 
    ///
19. 
    /// </Summary>
20. 
    Public
    Form1 ()
21. {
22. Initializecomponent ();
24. RND =
    New
    Random ();
25. Propertygrid1.selectedobject = plotex1;
26. }
28. 
    Private
     
    Void
    Toolstripbutton2_click (
    Object
    Sender, eventargs E)
29. {
30. 
    This
    . Plotex1.dataseries. Clear ();
31. 
    This
    . Plotex1.updaterootrect (0, 0, 20,100 0 );
33. Plotinfomation Pi =
    New
    Plotinfomation ();
34. Pi. Name =
    "Curve 1"
    ;
35. Pi. linecolor = color. Red;
36. Pi. pointcountperminute = 30;
37. Pi. datapoints =
    New
    List <
    Float
    > ();
38. 
    This
    . Plotex1.dataseries. Add (PI );
40. Plotinfomation Pi2 =
    New
    Plotinfomation ();
41. Pi2.name =
    "Curve 2"
    ;
42. Pi2.linedashstyle = system. Drawing. drawing2d. dashstyle. dashdotdot;
43. Pi2.linecolor = color. Green;
44. Pi2.pointcountperminute = 50;
45. Pi2.datapoints =
    New
    List <
    Float
    > ();
46. 
    This
    . Plotex1.dataseries. Add (Pi2 );
48. Timer1.enabled =
    True
    ;
49. }
50. 
    Private
    Random RND =
    Null
    ;
51. 
    Private
     
    Float
    Oldvalue = 100;
52. 
    Private
     
    Void
    Timereffectick (
    Object
    Sender, eventargs E)
53. {
54. 
    Float
    F = oldvalue + (
    Float
    ) RND. nextdouble () * 4-2;
55. 
    If
    (F <0)
56. F = 0;
57. 
    If
    (F> 1000)
58. F = 1000;
59. 
    This
    . Plotex1.dataseries [0]. datapoints. Add (f );
61. 
    This
    . Plotex1.dataseries [1]. datapoints. Add (F + RND. Next (10)-5 );
62. Oldvalue = F;
64. 
    This
    . Plotex1.invalidate ();
65. }
67. 
    Private
     
    Void
    Toolstripbutton#click (
    Object
    Sender, eventargs E)
68. {
69. Timer1.enabled =
    False
    ;
70. }
72. 
    Private
     
    Void
    Toolstripbutton4_click (
    Object
    Sender, eventargs E)
73. {
74. Savefiledialog SFD =
    New
    Savefiledialog ();
75. SFD. Filter =
    "Text data | *. txt"
    ;
76. 
    If
    (SFD. showdialog () = dialogresult. OK)
77. {
78. Streamwriter Sw = file. createtext (SFD. filename );
80. 
    This
    . Plotex1.savedatapoint (SW );
81. Sw. Close ();
83. }
84. SFD. Dispose ();
85. }
87. 
    Private
     
    Void
    Toolstripbutton3_click (
    Object
    Sender, eventargs E)
88. {
89. Openfiledialog ofd =
    New
    Openfiledialog ();
90. Ofd. Filter =
    "Text data | *. txt"
    ;
91. 
    If
    (OFD. showdialog () = dialogresult. OK)
92. {
93. Streamreader sr = file. opentext (OFD. filename );
94. 
    This
    . Plotex1.loaddatapoint (SR );
95. Sr. Close ();
97. 
    // Set the range based on the data.
98. 
    This
    . Plotex1.updaterootrect (0, 0, 20,100 0 );
99. }
100. Ofd. Dispose ();
101. }
103. 
     Private
      
     Void
     Toolstripbutton5_click (
     Object
     Sender, eventargs E)
104. {
105. Savefiledialog ofd =
     New
     Savefiledialog ();
106. Ofd. Filter =
     "Graphic file | *. BMP"
     ;
107. 
     If
     (OFD. showdialog () = dialogresult. OK)
108. {
109. 
     This
     . Plotex1.saveimage (OFD. filename );
110. }
111. Ofd. Dispose ();
112. }
116. }
117. }

:

In the graphic area, you can zoom in a selected area and double-click the selected area to roll back to the previous one. You can zoom in infinitely:

 

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