哈哈哈哈哈week04

1-1.網址:https://jsyeh.org/3dcg10/

1-2.下載win32、data.zip

1-3.win32解壓縮 改檔名 lib\libglut32.a

 將data.zip中的data複製至windows

2-1.*week04_translate new-project-glut-week04_translate

#include <GL/glut.h>

void myTeapot(float x,float y)

{

    glPushMatrix();

        glTranslatef(x,y,0);

        glutSolidTeapot(0.3);

    glPopMatrix();

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,0,0);

    myTeapot(+0.5,+0.5);

    myTeapot(+0.5,-0.5);

    myTeapot(-0.5,-0.5);

    myTeapot(-0.5,+0.5);

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("HW2 bonus");

    glutDisplayFunc(display);

    glutMainLoop();

    return 0;

}

2-2.*week04_mouse new-project-glut-week04_mouse

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSwapBuffers();

}

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

{

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

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week04 mouse");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}

2-3.

修改mouse程式碼(以滑鼠點擊移動黃色茶壺)

#include <GL/glut.h>

#include <stdio.h>

int mouseX=0,mouseY=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glPushMatrix();

        glTranslatef((mouseX-150)/150.0,-(mouseY-150)/150.0,0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

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

{

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

    mouseX=x;mouseY=y;

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week04 mouse");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}

2-4.修改mouse程式碼(根據鼠標移動顯示出座標形式)

#include <GL/glut.h>

#include <stdio.h>

int mouseX=0,mouseY=0,N=0;

int mx[100],my[100];

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glBegin(GL_LINE_LOOP);

        for(int i=0;i<N;i++){

            glVertex2f((mx[i]-150)/150.0,-(my[i]-150)/150.0);

        }

        glEnd();

    glutSwapBuffers();

}

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

{

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

    mouseX=x;mouseY=y;

    if(state==GLUT_DOWN){

        printf("    glVertex2f((%d-150)/150.0,-(%d-150)/150.0);\n",x,y);

        N++;

        mx[N-1]=x;my[N-1]=y;

    }

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week04 mouse");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}