DEM数字高程模型三维可视化实例

#include <windows.h> #include <gl/gl.h> #include <gl/glu.h> #include "func1.h" LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); BOOL DoFileOpen(HWND hwnd,char *Filter); void reDraw(); HWND view2D; int STDCALL WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int iCmdShow) { WNDCLASS wc; HWND hWnd; MSG msg; wc.style = CS_HREDRAW | CS_VREDRAW; 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)(COLOR_3DFACE+1); wc.lpszMenuName = NULL; wc.lpszClassName = "DEM"; RegisterClass( &wc ); Condition.onbmp=0; Condition.onfbmp=0; Condition.onfdem=0; Condition.onnet=0; Condition.onopengl=0; Condition.onshdow=0; hWnd = CreateWindow( "DEM", "DEM", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 1000, 768, NULL, NULL, hInstance, NULL); ShowWindow(hWnd ,SW_SHOWMAXIMIZED); UpdateWindow(hWnd); HWND view3D = CreateWindow ( //3D绘图区 "DEM", "", WS_CHILD|WS_VISIBLE|WS_DLGFRAME, 0, 0, 950,740, hWnd, (HMENU) 1, hInstance, NULL ); view2D = CreateWindow ( //2D绘图区 "DEM", "", WS_CHILD|WS_VISIBLE|WS_DLGFRAME, 952, 0, 325,375, hWnd, (HMENU) 2, hInstance, NULL ); EnableOpenGL( view3D, &hDC, &hRC ); while(GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); reDraw(); } DisableOpenGL( view3D, hDC, hRC ); DestroyWindow( hWnd ); return msg.wParam; } LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { static HWND hwndButton[7]={0,0,0,0,0,0,0}; HDC hdc; PAINTSTRUCT ps; RECT rc; static TCHAR szBuffer[40]; switch (message) { case WM_CREATE: hwndButton[0]= CreateWindow ( "button", "打开DEM数据...", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 952, 530, 120, 30, hWnd, (HMENU) 3, ((LPCREATESTRUCT) lParam)->hInstance, NULL ); hwndButton[1]= CreateWindow ( "button", "打开地形纹理...", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 952, 560, 120, 30, hWnd, (HMENU) 4, ((LPCREATESTRUCT) lParam)->hInstance, NULL ); hwndButton[2]= CreateWindow ( "button", "退出", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, 1065, 710, 120, 30, hWnd, (HMENU) 5, ((LPCREATESTRUCT) lParam)->hInstance, NULL ); hwndButton[3]= CreateWindow ( "button", "显示网格", WS_CHILD | WS_VISIBLE |BS_AUTOCHECKBOX, 955, 609, 161, 50, hWnd, (HMENU) 6, ((LPCREATESTRUCT) lParam)->hInstance, NULL ); hwndButton[4]= CreateWindow ( "button", "位图纹理", WS_CHILD | WS_VISIBLE |BS_AUTOCHECKBOX, 955, 659, 161, 42, hWnd, (HMENU) 7, ((LPCREATESTRUCT) lParam)->hInstance, NULL ); hwndButton[5]= CreateWindow ( "button", "openGL", WS_CHILD | WS_VISIBLE |BS_AUTOCHECKBOX, 1116, 609, 157, 50, hWnd, (HMENU) 8, ((LPCREATESTRUCT) lParam)->hInstance, NULL ); hwndButton[6]= CreateWindow ( "button", "阴影", WS_CHILD | WS_VISIBLE |BS_AUTOCHECKBOX, 1116, 659, 157, 42, hWnd, (HMENU) 9, ((LPCREATESTRUCT) lParam)->hInstance, NULL );