MFC 2D Dynamic Chart [GDI]

 

Source blog: http://www.codeproject.com/Articles/9350/2D-Animated-Charts

Source code: http://download.csdn.net/detail/nuptboyzhb/4202051

Introduction: cgraphobject is derived from the cwnd class. Therefore, the cgraphobject class isWindow Type; That is, each chart is a window; therefore, the creation of each chart should be placed in the oncreate function or oninitialupdate function; its application process, and window-type controls (such as cbutton) very similar;

Application:

1.
Copy the related. h and. cpp files to the project directory and load them to the project;

[Graphobject. h graphobject. cpp]

[Mathparams. H]

[2dlinegraph. h 2dlinegraph. cpp]

[2dbargraph. h 2dbargraph. cpp]

[2dpiegraph. h 2dpiegraph. cpp]

2.
Include the corresponding header file in the header file where the class is located; # include "graphobject. H" and define the corresponding resource ID window;

3.
Add a pointer of the chart type to the class as its member variable;

Cgraphobject * m_pgraphobject1;

//...... For details, see the code.

4.
In the oninitialupdate () function of the View class, initialize these chart windows, or the oninitdialog () function of the dialog box; or the oncreate function. (Note: the first function called by the framework after the View window is fully created. The framework will call oninitialupdate before ondraw is called for the first time)

 

// Create cgraphobject1 (2 dpie graph)

M_pgraphobject1 = new cgraphobject ();

// Create a chart window, size, pointer to the parent window, and resource ID (custom)

M_pgraphobject1->Create(Null, crect (240,220,), this,
Id_object_graph_1, Null );

// Note that the resource ID should be defined in the header file, for example: # define id_object_graph_1 12345

// Create graph and set graph Parameters

M_pgraphobject1-> creategraph (gt_2dpie); // create a two-dimensional pie chart

M_pgraphobject1-> setgraphbackgroundcolor (RGB (255,255,255); // you can specify the background color.

M_pgraphobject1-> setgraphtitle ("2 dpie No. 1"); // set the title

M_pgraphobject1-> setgraphsubtitle ("animation-none"); // you can specify a subtitle.

M_pgraphobject1-> setgraphtitleshadow (false); // The title has no shadow.

M_pgraphobject1-> setgraphsubtitleshadow (false); // The subtitle has no shadow.

M_pgraphobject1-> setgraphtitlecolor (RGB (128,128,128); // you can specify the title Color.

M_pgraphobject1-> setgraphsubtitlecolor (RGB (, 96); // you can specify the subtitle color.

// Set the background color of the comment

M_pgraphobject1-> setgraphlegendbackgroundcolor (RGB (208,208,208 ));

// Add graph segments

// Add data segments (percentages, colors, and names) for the pie chart)

M_pgraphobject1-> add2dpiegraphsegment (40, RGB (255, 0), "seg_1 ");

M_pgraphobject1-> add2dpiegraphsegment (25, RGB (0,255, 0), "seg_2 ");

M_pgraphobject1-> add2dpiegraphsegment (15, RGB (255,), "seg_3 ");

M_pgraphobject1-> add2dpiegraphsegment (5, RGB (255, 0, 255), "seg_4 ");

M_pgraphobject1-> add2dpiegraphsegment (8, RGB (0,255,255), "seg_5 ");

M_pgraphobject1-> add2dpiegraphsegment (7, RGB (255,255, 0), "seg_6 ");

// Set image Animation

M_pgraphobject1-> setgraphanimation (false, at_pie_draw );

5.
Delete the pointer of the member variable in the View class destructor;

M_pgraphobject1-> destroywindow (); // close the window

Delete m_pgraphobject1; // Delete the pointer

Note: I have modified mathparams. h and added

# Pragma comment (Lib, "gdi32.lib ")

# Pragma comment (Lib, "msimg32.lib ")

And include mathparams. h In the. cpp file of the three images.

Package it into the DLL Dynamic Link Library

Source code: http://download.csdn.net/detail/nuptboyzhb/4205148

After encapsulation, you only need to [2dgraph. lib] [2dgraph. DLL] [graphobject. h] copy the three files to the project directory. You only need to include the header file where necessary;

# Include "graphobject. H"

# Pragma comment (Lib, "2dgraph. lib ")

Then, the following programming is the same as the above 3-5 steps;