计算机图形学第一次实验(续)

来源：互联网发布：电视视频端口坏掉编辑：程序博客网时间：2024/05/16 12:11

这是我同学的做法
程序界面

// shiyan1.cpp : 定义应用程序的入口点。

#include "stdafx.h"

#include "shiyan1.h"

#include "math.h"

#include "windows.h"

#include<locale.h>

#define MAX_LOADSTRING 100

#define N 7

// 全局变量:

HINSTANCE hInst; // 当前实例

TCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本

TCHAR szWindowClass[MAX_LOADSTRING]; // 主窗口类名

// 此代码模块中包含的函数的前向声明:

ATOM MyRegisterClass(HINSTANCE hInstance);

BOOL InitInstance(HINSTANCE, int);

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);

bool flag1,flag2,flag2_1,flag3;

RECT rectClient;

void DRAW1(HDC);

void DRAW2(HDC);

void DRAW2_1(HDC);

void DRAW3(HDC);

int APIENTRY _tWinMain(HINSTANCE hInstance,

HINSTANCE hPrevInstance,

LPTSTR lpCmdLine,

int nCmdShow)

{

UNREFERENCED_PARAMETER(hPrevInstance);

UNREFERENCED_PARAMETER(lpCmdLine);

// TODO: 在此放置代码。

MSG msg;

HACCEL hAccelTable;

// 初始化全局字符串

LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);

LoadString(hInstance, IDC_SHIYAN1, szWindowClass, MAX_LOADSTRING);

MyRegisterClass(hInstance);

// 执行应用程序初始化:

if (!InitInstance (hInstance, nCmdShow))

{

return FALSE;

}

hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_SHIYAN1));

// 主消息循环:

while (GetMessage(&msg, NULL, 0, 0))

{

if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))

{

TranslateMessage(&msg);

DispatchMessage(&msg);

}

return (int) msg.wParam;

}

// 函数: MyRegisterClass()

// 目的: 注册窗口类。

// 注释:

// 仅当希望

// 此代码与添加到 Windows 95 中的“RegisterClassEx”

// 函数之前的 Win32 系统兼容时，才需要此函数及其用法。调用此函数十分重要，

// 这样应用程序就可以获得关联的

// “格式正确的”小图标。

ATOM MyRegisterClass(HINSTANCE hInstance)

{

WNDCLASSEX wcex;

wcex.cbSize = sizeof(WNDCLASSEX);

wcex.style = CS_HREDRAW | CS_VREDRAW;

wcex.lpfnWndProc = WndProc;

wcex.cbClsExtra = 0;

wcex.cbWndExtra = 0;

wcex.hInstance = hInstance;

wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_SHIYAN1));

wcex.hCursor = LoadCursor(NULL, IDC_ARROW);

wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);

wcex.lpszMenuName = MAKEINTRESOURCE(IDC_SHIYAN1);

wcex.lpszClassName = szWindowClass;

wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

return RegisterClassEx(&wcex);

}

// 函数: InitInstance(HINSTANCE, int)

// 目的: 保存实例句柄并创建主窗口

// 注释:

// 在此函数中，我们在全局变量中保存实例句柄并

// 创建和显示主程序窗口。

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)

{

HWND hWnd;

hInst = hInstance; // 将实例句柄存储在全局变量中

flag1=false;

flag2=false;

flag2_1=false;

flag3=false;

hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,

CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

if (!hWnd)

{

return FALSE;

}

ShowWindow(hWnd, nCmdShow);

UpdateWindow(hWnd);

return TRUE;

}

// 函数: WndProc(HWND, UINT, WPARAM, LPARAM)

// 目的: 处理主窗口的消息。

// WM_COMMAND - 处理应用程序菜单

// WM_PAINT - 绘制主窗口

// WM_DESTROY - 发送退出消息并返回

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)

{

GetClientRect(hWnd,&rectClient);

int wmId, wmEvent;

PAINTSTRUCT ps;

HDC hdc;

switch (message)

{

case WM_COMMAND:

wmId = LOWORD(wParam);

wmEvent = HIWORD(wParam);

// 分析菜单选择:

switch (wmId)

{

case IDM_ABOUT:

DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);

break;

case IDM_EXIT:

DestroyWindow(hWnd);

break;

case ID_DRAW_TU1:

InvalidateRect(hWnd,&rectClient,true);

flag1=true;

break;

case ID_DRAW_TU2:

InvalidateRect(hWnd,&rectClient,true);

flag2=true;

break;

case ID_DRAW_TU2_1:

InvalidateRect(hWnd,&rectClient,true);

flag2_1=true;

break;

case ID_DRAW_TU3:

InvalidateRect(hWnd,&rectClient,true);

flag3=true;

break;

case ID_DRAW_ALL:

InvalidateRect(hWnd,&rectClient,true);

flag1=flag2=flag2_1=flag3=true;

break;

default:

return DefWindowProc(hWnd, message, wParam, lParam);

}

break;

case WM_PAINT:

hdc = BeginPaint(hWnd, &ps);

TextOut(hdc,10,10,LPCTSTR("1234"),4);

DRAW1(hdc);

DRAW2(hdc);

DRAW2_1(hdc);

DRAW3(hdc);

EndPaint(hWnd, &ps);

break;

case WM_DESTROY:

PostQuitMessage(0);

break;

default:

return DefWindowProc(hWnd, message, wParam, lParam);

}

return 0;

}

// “关于”框的消息处理程序。

INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)

{

UNREFERENCED_PARAMETER(lParam);

switch (message)

{

case WM_INITDIALOG:

return (INT_PTR)TRUE;

case WM_COMMAND:

if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)

{

EndDialog(hDlg, LOWORD(wParam));

return (INT_PTR)TRUE;

}

break;

}

return (INT_PTR)FALSE;

}

void wait(int a)

{

while(a)

{

a--;

}

return;

}

void DRAW1(HDC hdc)

{

if(flag1)

{

HPEN hNewPen,hOldPen;

hNewPen = CreatePen(PS_SOLID,2,RGB(0,0,255));

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

MoveToEx(hdc,160,240,NULL);

for(int x=160;x<=480;x+=20)

{

LineTo(hdc, x,120);

LineTo(hdc,480,240);

LineTo(hdc,640-x,360);

LineTo(hdc,160,240);

}

DeleteObject(hNewPen);

flag1=!flag1;

}

void DRAW2(HDC hdc)

{

if(flag2)

{

HPEN hNewPen,hOldPen;

hNewPen = CreatePen(PS_SOLID,2,RGB(204,51,0));

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

int i;

int t;

double x[N],y[N];

double PI=3.14*2/N;

double r=100.0;

for(i=0;i<N;i++)

{

x[i]=r*cos(i*PI)+640;

y[i]=r*sin(i*PI)+140;

}

MoveToEx(hdc,x[0],y[0],NULL);

for(t=1;t<N;t++)

{

for(i=t;;i=i+t)

{

if(i>N-1)

i=i-N;

if(i<N)

LineTo(hdc,x[i],y[i]);

if(i==0)

break;

}

DeleteObject(hNewPen);

flag2=!flag2;

}

void DRAW2_1(HDC hdc)

{

if(flag2_1)

{

HPEN hNewPen,hOldPen;

hNewPen = CreatePen(PS_SOLID,2,RGB(204,51,0));

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

int i,j;

double x[N],y[N];

double PI=3.14*2/N;

double r=100.0;

for(i=0;i<N;i++)

{

x[i]=r*cos(i*PI)+640;

y[i]=r*sin(i*PI)+340;

}

for(i=0;i<=N-2;i++)

for(j=i+1;j<=N-1;j++)

{

MoveToEx(hdc,x[i],y[i],NULL);

LineTo(hdc,x[j],y[j]);

}

DeleteObject(hNewPen);

flag2_1=!flag2_1;

}

void DRAW3(HDC hdc)

{

if(flag3)

{

int x;

HPEN hNewPen,hOldPen;

HBRUSH hBrush,hOldBrush;

int point1[]={100,0,128,0,48,80,150,80,170,100,0,100,100,0};

int point2[]={0,100,20,120,220,120,128,28,113,43,170,100,0,100};

int point3[]={76,80,128,28,220,120,228,100,128,0,48,80,76,80};

hNewPen = CreatePen(PS_SOLID,1,RGB(255,255,0));//设置画笔2黄

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

hBrush = CreateSolidBrush(RGB(255,0,0));//设置画刷2

hOldBrush = (HBRUSH)SelectObject(hdc,hBrush);

MoveToEx(hdc,point2[0],point2[1],NULL);

for(int i=2;i<14;i+=2)

{

LineTo(hdc,point2[i],point2[i+1]);

}

for(x=0;x<=170;x++)

{

MoveToEx(hdc,x,100,NULL);

LineTo(hdc,x+20,120);

}

for(x=220;x>=190;x--)

{

MoveToEx(hdc,x,120,NULL);

LineTo(hdc,x-92,28);

}

hNewPen = CreatePen(PS_SOLID,1,RGB(0,0,255));//设置画笔3蓝

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

MoveToEx(hdc,point3[0],point3[1],NULL);

for(int i=2;i<14;i+=2)

{

LineTo(hdc,point3[i],point3[i+1]);

}

for(x=48;x<=76;x++)

{

MoveToEx(hdc,x,80,NULL);

LineTo(hdc,x+66,14);

}

for(x=248;x>=220;x--)

{

MoveToEx(hdc,x,120,NULL);

LineTo(hdc,x-120,0);

}

hNewPen = CreatePen(PS_SOLID,1,RGB(255,255,255));//设置画笔4白色，抹掉多画的一个三角形

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

hBrush = CreateSolidBrush(RGB(255,255,255));//设置画刷4

hOldBrush = (HBRUSH)SelectObject(hdc,hBrush);

for(x=220;x<=248;x++)

{

MoveToEx(hdc,x,120,NULL);

LineTo(hdc,x+20,100);

}

hNewPen = CreatePen(PS_SOLID,1,RGB(255,0,0));//设置画笔1红

hOldPen = (HPEN)SelectObject(hdc,hNewPen);

hBrush = CreateSolidBrush(RGB(255,0,0));//设置画刷1

hOldBrush = (HBRUSH)SelectObject(hdc,hBrush);

MoveToEx(hdc,point1[0],point1[1],NULL);

for(int i=2;i<14;i+=2)

{

LineTo(hdc,point1[i],point1[i+1]);

}

for(x=150;x>=48;x--)

{

MoveToEx(hdc,x,80,NULL);

LineTo(hdc,x+20,100);

}

for(x=0;x<=28;x++)

{

MoveToEx(hdc,x,100,NULL);

LineTo(hdc,x+100,0);

}

for(x=28;x<=68;x++)

{

MoveToEx(hdc,x,100,NULL);

LineTo(hdc,x+20,80);

}

DeleteObject(hNewPen);

flag3=!flag3;

}

}

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