week04 安安你好

 

點擊茶壺視窗的任一個點，右邊的小黑視窗會顯示出滑鼠游標所在座標，button:0 表示滑鼠左鍵;button:1表示滑鼠中鍵;button:2表示滑鼠右鍵

(程式碼如下 )

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

void mouse(int button,int state,int x,int y)///Mouse

{

    printf("button:%d state:%d x:%d y:%d\n",button,state,x,y);

}

int main(int argc,char ** argv)

{

    glutInit( &argc , argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("08160050陳柏勻");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);///mouse

    glutMainLoop();

}

利用滑鼠游標點擊圖型視窗的任意一個點，即可出現該點的座標位置，再利用該點的座標位置繪製新的圖片。

(程式碼如下)

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    //glutSolidTeapot(0.3);

 glBegin(GL_POLYGON);

 glVertex3f((92-150)/150.0, -(94-150)/150.0,0);

 glVertex3f((143-150)/150.0, -(99-150)/150.0,0);

 glVertex3f((148-150)/150.0, -(137-150)/150.0,0);

 glVertex3f((94-150)/150.0, -(166-150)/150.0,0);

 glVertex3f((64-150)/150.0, -(186-150)/150.0,0);

 glVertex3f((78-150)/150.0, -(214-150)/150.0,0);

 glVertex3f((99-150)/150.0, -(215-150)/150.0,0);

 glVertex3f((159-150)/150.0, -(223-150)/150.0,0);

 glVertex3f((191-150)/150.0, -(205-150)/150.0,0);

 glVertex3f((203-150)/150.0, -(173-150)/150.0,0);

 glVertex3f((199-150)/150.0, -(128-150)/150.0,0);

 glVertex3f((151-150)/150.0, -(91-150)/150.0,0);

 glVertex3f((103-150)/150.0, -(80-150)/150.0,0);

 glEnd();

    glutSwapBuffers();

}

void mouse(int button,int state,int x,int y)///Mouse

{

    if(state==GLUT_DOWN)

    {

        printf(" glVertex3f((%d-150)/150.0, -(%d-150)/150.0,0);\n",x,y);

    }

}

int main(int argc,char ** argv)

{

    glutInit( &argc , argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("08160050陳柏勻");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);///mouse

    glutMainLoop();

}

茶壺跟著鼠標私奔

(程式碼如下)

#include <GL/glut.h>

#include <stdio.h>

float teapotX=0,teapotY=0;

void display()

{

  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

  glPushMatrix();

    glTranslatef(teapotX,teapotY,0);

    glutSolidTeapot(0.3);

 glPopMatrix();

 glEnd();

    glutSwapBuffers();

}

void motion(int x,int y)///Mouse

{

    teapotX =(x-150)/150.0;

    teapotY=-(y-150)/150.0;

    display();

}

int main(int argc,char ** argv)

{

    glutInit( &argc , argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("08160050陳柏勻");

    glutDisplayFunc(display);

    ///glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可

#include <opencv/cv.h>

#include <GL/glut.h>

void init()

{

    IplImage * img = cvLoadImage("puipui.jpg"); ///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能

    GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id); /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); /// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); /// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); /// 貼圖參數, 縮小時的內插, 用最近點

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

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc,char **argv){

    glutInit(&argc ,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week08 texture");

    init();

    glutDisplayFunc(display);

    glutMainLoop();

}