week16_黃耀緯

先到moodle下載myEath

然後下載OpenCV-2.1.0-win32-vs2008.exe

打開 CodeBlocks 開啟 myearth 程式

然後經過一番設定

然後放下程式碼

#include <opencv/highgui.h> ///for cvLoadImage()

#include <opencv/cv.h> ///for cvCvtColor()

#include <GL/glut.h> ///3D glut

#include <stdio.h>

GLUquadric * quad;

GLuint id,id2;

float angle=0;

void display()

{   glEnable(GL_DEPTH_TEST); 

    glClear(GL_COLOR_BUFFER_BIT  | GL_DEPTH_BUFFER_BIT);

    glBindTexture(GL_TEXTURE_2D, id2); 

    glBegin(GL_POLYGON);

            glTexCoord2f(0,0);    glVertex2f(-1,+1);

            glTexCoord2f(0,1);    glVertex2f(-1,-1);

            glTexCoord2f(1,1);    glVertex2f(+1,-1);

            glTexCoord2f(1,0);    glVertex2f(+1,+1);

    glEnd();

    glBindTexture(GL_TEXTURE_2D, id); 

    glPushMatrix();

        glRotatef(90, 1,0,0);

        glRotatef(angle, 0,0,1);

        gluQuadricTexture(quad, 1);

        gluSphere(quad, 0.3, 30, 30);///glutSolidTeapot(0.3);

    glPopMatrix();

    glFlush();

}

void timer(int t)

{   glutTimerFunc(20, timer, 0);/// 1000 msec   50fps:20msec

    angle+=1;

    glutPostRedisplay();

}

int myTexture(char *filename)

{

    IplImage * img = cvLoadImage(filename); /

    cvCvtColor(img,img, CV_BGR2RGB); 

    glEnable(GL_TEXTURE_2D); 

    GLuint id; 

    glGenTextures(1, &id); 

    glBindTexture(GL_TEXTURE_2D, id); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

void myInit()

{   quad = gluNewQuadric();

    id = myTexture("image.jpg");

    id2 = myTexture("background.jpg");

}

int main(int argc, char**argv)

{   glutInit(&argc, argv);

    glutCreateWindow("3D");

    glutDisplayFunc(display); 

    glutTimerFunc(0, timer, 0);

    myInit(); 

    glutMainLoop();

}