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程序问答发布时间：2022-06-02 发布网站：大佬教程 code.js-code.com

大佬教程收集整理的这篇文章主要介绍了使用 C++ 围绕参考点旋转圆圈，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

如何解决使用 C++ 围绕参考点旋转圆圈？

开发过程中遇到使用 C++ 围绕参考点旋转圆圈的问题如何解决？下面主要结合日常开发的经验，给出你关于使用 C++ 围绕参考点旋转圆圈的解决方法建议，希望对你解决使用 C++ 围绕参考点旋转圆圈有所启发或帮助；

我想围绕空间中的一个参考点创建一圈规则间隔的门。每次程序运行时，圆圈中的项目数量都会不同，因此它会自动重新调整以适应增加的项目数量。

我希望项目输出如下图所示：

使用 C++ 围绕参考点旋转圆圈

我的代码是：

@H_696_17@

    /**********
 * Includes
 *
 **********/

#include <windows.h>
#include <gl/gl.h>
#include <math.h>

/**********
 * Function Declarations
 *
 **********/

LRESulT CALLBACK WndProc (HWND hWnd,UINT message,WParaM wParam,LParaM lParam);
voID EnabLeopenGL (HWND hWnd,HDC *hDC,HglrC *hRC);
voID disabLeopenGL (HWND hWnd,HDC hDC,HglrC hRC);

int DrawAxis()
{
    @R_502_5987@ i;
    glClearcolor (0,1,1);
    glPointSize(1);
    glBegin (GL_POINTS);
    glcolor3f(0,1);
    for(i=-1;i<1;i=i+0.001)
{
    glVertex2f(i,0);
    glVertex2f(0,i);
}
 glEnd ();
}
int SetPoint(@R_502_5987@ x,@R_502_5987@ y,int sizE)
{

glPointSize(sizE);
glBegin (GL_POINTS);
glcolor3f(1,1);
glVertex2f(x,y);
glEnd ();
}
int MovPoint(@R_502_5987@ x,@R_502_5987@ xt,@R_502_5987@ yt,1);
glVertex2f(xt+x/10,yt+y/10);
glEnd ();
}
int RotatePoint(@R_502_5987@ x,@R_502_5987@ Teta)
{
    glPointSize(1);
    glBegin(GL_POINTS);
    glcolor3f(1,1);
    Teta = Teta * 3.14 / 180;
    x=x * cos(Teta) - y * sin(Teta);
    y=x * sin(Teta) + y * cos(Teta);
     @R_502_5987@ teta = 0;
             @R_502_5987@ i = 0;
             @R_502_5987@ r=0.4;
             @R_502_5987@ Dtheta = 2 * 3.14 / 360;
             glcolor3f(1,1);
             glPointSize(3);
             glBegin (GL_POINTS);
             for (i = 0; i <360; i += 0.01)
                {
                                teta = i * Dtheta;
                   glVertex2f( x+ r * cos(teta),y+  r * sin(teta) );
               }
    
    glEnd();
}
 @R_502_5987@ dayereh (@R_502_5987@ x,@R_502_5987@ y)
         {
         
             @R_502_5987@ teta = 0;
             @R_502_5987@ i = 0;
             @R_502_5987@ r=0.4;
             @R_502_5987@ Dtheta = 2 * 3.14 / 360;
             glcolor3f(1,y+  r * sin(teta) );
               }
                   glEnd ();
          } 


/**********
 * WinMain
 *
 **********/

int WINAPI WinMain (HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdline,int iCmdshow)
{
    WNDCLASS wc;
    HWND hWnd;
    HDC hDc;
    HglrC hRc;        
    MSG msg;
    BOol bQuit = falSE;
    @R_502_5987@ theta = 0.0f;

    /* register window class */
    wc.style = CS_OWNDc;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoaDicon (NulL,IDI_APPliCATION);
    wc.hcursor = Loadcursor (NulL,IDC_ARROW);
    wc.hbrBACkground = (HBrush) GetStockObject (BLACK_Brush);
    wc.lpszMenuname = NulL;
    wc.lpszClassname = "GLSample";
    RegisterClass (&wc);

    /* create main window */
    hWnd = CreateWindow (
      "GLSample","OpenGL Sample",WS_CAPTION | WS_POPUPWINDOW | WS_VISIBLE,550,60,456,NulL,hInstance,null);

    /* enable OpenGL for the window */
    EnabLeopenGL (hWnd,&hDC,&hRC);

    /* program main loop */
    while (!bQuit)
    {
        /* check for messages */
        if (Peekmessage (&msg,PM_REMOVE))
        {
            /* handle or dispatch messages */
            if (msg.message == WM_QUIT)
            {
                bQuit = TRUE;
            }
            else
            {
                Translatemessage (&msg);
                dispatchmessage (&msg);
            }
        }
        else
        {
            /* OpenGL animation code goes here */

            glClearcolor (0,1);
            glClear (GL_color_BUFFER_BIT);
            DrawAxis();
         // SetPoint(.9,5);
           //MovPoint(0.5,0.5,-0.8,5);
            //RotatePoint(.9,45);
       //     dayereh (-0.4,0);
          // for (@R_502_5987@ r = 45; r < 360; r ++)
           //   for (@R_502_5987@ i = -0.4; i < 0; i += .1)
            for (@R_502_5987@ j = 0; j < 1; j += .1)
            {
             
             RotatePoint(-0.3,j,45);
      //       RotatePoint(.6,i,45);
        ////   RotatePoint(0,45);
             }
        
            //RotatePoint(-0.3,-0.1,45); 
          //  RotatePoint(-0.3,-0.2,47); 
           //  RotatePoint(-0.3,-.3,55);        
            
            SwapBuffers (hDC);

            theta += 0.2f;
            Sleep (1);
        }
    }

    /* shutdown OpenGL */
    disabLeopenGL (hWnd,hDC,hRC);

    /* destroy the window explicitly */
    DestroyWindow (hWnd);

    return msg.wParam;
}


/********
 * Window Procedure
 *
 ********/

LRESulT CALLBACK WndProc (HWND hWnd,LParaM lParam)
{

    switch (messagE)
    {
    case WM_CREATE:
        return 0;
    case WM_CLOSE:
        PostQuitmessage (0);
        return 0;

    case WM_DESTROY:
        return 0;

    case WM_KEYDOWN:
        switch (wParam)
        {
        case VK_ESCAPE:
            PostQuitmessage(0);
            return 0;
        }
        return 0;

    default:
        return DefWindowProc (hWnd,message,wParam,lParam);
    }
}


/*******
 * Enable OpenGL
 *
 *******/

voID EnabLeopenGL (HWND hWnd,HglrC *hRC)
{
    PIXELFORMATDESCRIPTOR pfd;
    int iFormat;

    /* get the device context (DC) */
    *hDC = GetDC (hWnd);

    /* set the pixel format for the DC */
    ZeroMemory (&pfd,sizeof (pfd));
    pfd.nSize = sizeof (pfd);
    pfd.nVersion = 1;
    pfd.DWFlags = PFD_DRAW_TO_WINDOW | 
      PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
    pfd.iPixelType = PFD_TYPE_RGBA;
    pfd.ccolorBits = 24;
    pfd.cDepthBits = 16;
    pfd.iLayerType = PFD_MAIN_PLANE;
    iFormat = ChoosePixelFormat (*hDC,&pfd);
    SetPixelFormat (*hDC,iFormat,&pfd);

    /* create and enable the render context (RC) */
    *hRC = wglCreateContext( *hDC );
    wglMakeCurrent( *hDC,*hRC );

}


/******
 * disable OpenGL
 *
 ******/

voID disabLeopenGL (HWND hWnd,HglrC hRC)
{
    wglMakeCurrent (NulL,null);
    wgldeleteContext (hRC);
    ReleaseDC (hWnd,hDC);
}