Week 03 甄臻紀錄

Homework-1

freeglut解壓縮

new→project

GLUT

main.c→齒輪播放建

沿用上一個程式，並刪除多餘的程式碼，保留剩下所需的10行程式碼

#include <GL/glut.h>

void display(void)

{

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    ///glutMouseFunc(mouse);

    ///glutMotionFund(motion);

    glutMainLoop();

}

新增滑鼠事件

#include <GL/glut.h>

#include <math.h>

#include <stdio.h>

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

{

    printf("%d %d %d %d\n",button,state,x,y);///第二個數字，0為按下、1為放開

}

void display(void)

{

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);///Test the mouse func

    ///glutMotionFund(motion);

    glutMainLoop();

}

利用滑鼠改變顏色

#include <GL/glut.h>

#include <math.h>

#include <stdio.h>

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

{

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

    glColor3f(1,x/300.0,y/300.0);///R,G,B

    glutPostRedisplay();

}

void display(void)

{

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    ///glutMotionFund(motion);

    glutMainLoop();

}

拖曳滑鼠即可改變顏色

#include <GL/glut.h>

#include <math.h>

#include <stdio.h>

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

{

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

}

void motion(int x,int y)

{

    printf("%d %d\n",x,y);

    glColor3f(1,x/300.0,y/300.0);

    glutPostRedisplay();

}

void display(void)

{

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutInitWindowSize(300,300);///改變視窗大小

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMotionFund(motion);

    glutMainLoop();

}

利用程式碼產生新的程式碼畫出圖形

#include <GL/glut.h>

#include <math.h>

#include <stdio.h>

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

{

   if(state==GLUT_DOWN)printf("glVertex2f(%.2f,%.2f);\n",(x-150)/150.0,-(y-150)/150.0);

}

void motion(int x,int y)

{

    glColor3f(1,x/300.0,y/300.0);

    glutPostRedisplay();

}

void display(void)

{

    glBegin(GL_POLYGON);

        glVertex2f(0.03,-0.47);

        glVertex2f(-0.05,-0.45);

        glVertex2f(-0.17,-0.37);

        glVertex2f(-0.17,-0.37);

        glVertex2f(-0.23,-0.32);

        glVertex2f(-0.41,-0.19);

        glVertex2f(-0.47,-0.14);

        glVertex2f(-0.51,-0.10);

        glVertex2f(-0.54,-0.03);

        glVertex2f(-0.59,0.16);

        glVertex2f(-0.57,0.28);

        glVertex2f(-0.54,0.33);

        glVertex2f(-0.47,0.38);

        glVertex2f(-0.39,0.39);

        glVertex2f(-0.33,0.40);

        glVertex2f(-0.19,0.39);

        glVertex2f(-0.15,0.35);

        glVertex2f(-0.13,0.30);

        glVertex2f(-0.08,0.25);

        glVertex2f(-0.08,0.23);

        glVertex2f(0.09,0.31);

        glVertex2f(0.15,0.41);

        glVertex2f(0.24,0.42);

        glVertex2f(0.25,0.42);

        glVertex2f(0.32,0.41);

        glVertex2f(0.49,0.41);

        glVertex2f(0.51,0.33);

        glVertex2f(0.53,0.22);

        glVertex2f(0.53,0.15);

        glVertex2f(0.51,-0.02);

        glVertex2f(0.43,-0.17);

        glVertex2f(0.40,-0.22);

        glVertex2f(0.33,-0.27);

        glVertex2f(0.25,-0.32);

        glVertex2f(0.21,-0.36);

        glVertex2f(0.11,-0.44);

        glVertex2f(0.09,-0.45);

        glVertex2f(0.05,-0.50);

        glVertex2f(0.04,-0.52);

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutInitWindowSize(300,300);

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMotionFund(motion);

    glutMainLoop();

}

利用程式碼畫圓

#include <GL/glut.h>

#include <math.h>

#include <stdio.h>

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

{

    if(state==GLUT_DOWN)printf("glVertex2f(%.2f,%.2f);\n",(x-150)/150.0,-(y-150)/150.0);

}

void motion(int x,int y)

{

    glColor3f(1,x/300.0,y/300.0);

    glutPostRedisplay();

}

void display(void)

{

    glBegin(GL_POLYGON);

    for(float angle=0;angle<3.1415926*2;angle+=0.01)

    {

        glVertex2f(cos(angle),sin(angle));

    }

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutInitWindowSize(300,300);

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMotionFund(motion);

    glutMainLoop();

}

改變程式碼以線畫圓

#include <GL/glut.h>

#include <math.h>

#include <stdio.h>

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

{

    if(state==GLUT_DOWN)printf("glVertex2f(%.2f,%.2f);\n",(x-150)/150.0,-(y-150)/150.0);

}

void motion(int x,int y)

{

    glColor3f(1,x/300.0,y/300.0);

    glutPostRedisplay();

}

void display(void)

{

    glBegin(GL_LINE_LOOP);

    for(float angle=0;angle<3.1415926*2;angle+=0.01)

    {

        glVertex2f(cos(angle),sin(angle));

    }

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutInitWindowSize(300,300);

    glutCreateWindow("60CCE NO.1");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMotionFund(motion);

    glutMainLoop();

}