02160056簡瑜萱week5

電腦圖學
1)自製3D模型

2)利用mouse旋轉

3)回家作業

1載freeglut,(codeblocks,libglut32.a)
上週的glutWireTorus(0.3,0.7,30,30)

會旋轉的甜甜圈
#include<GL/glut.h>

float angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glRotatef(angle,0,1,0);
    glutWireTorus(0.3,0.7,30,30);
    glFlush();
    angle+=0.01;
}
int main(int argc,char **argv)
{
    glutInit(&argc, argv);
    glutCreateWindow("02160056簡瑜萱");
    glutDisplayFunc(display);
    glutMainLoop();
}

加glPushMatrix();

    glPopMatrix();速度變慢

2D正方形

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

    //glRotatef(angle,0,1,0);

    glBegin(GL_LINE_LOOP);

    glVertex2f(0.2,0.2);//2D

    glVertex2f(0.2,-0.2);

    glVertex2f(-0.2,-0.2);

    glVertex2f(-0.2,0.2);

    glEnd();

    glPopMatrix();

    glFlush();

    angle+=0.01;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutMainLoop();

}

3D旋轉正方形

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

    glRotatef(angle,0,1,0);

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,0.2,0.8);

    glEnd();

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,0.2,0.8);

    glEnd();

    glPopMatrix();

    glFlush();

    angle+=0.01;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();

}

3D旋轉長方體

用POLYGON和QUAD_STRIP做出一立體長方形

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glColor3f(1,0,0);

    glPushMatrix();

    glRotatef(angle,0,1,0.4);

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,0.2,0.8);

    glEnd();

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glVertex3f(-0.2,0.2,-0.8);

    glEnd();

    glBegin(GL_QUAD_STRIP);//四邊形構成彩帶

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glVertex3f(-0.2,0.2,0.8);

     glVertex3f(-0.2,0.2,-0.8);

     glEnd();

    glPopMatrix();

    glFlush();

    angle+=0.01;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();

}

3D透明旋轉長方體加黑線

延用上一個程式加上黑線讓他看得更清楚

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glColor3f(1,0,0);前面是畫面

    glPushMatrix();

    glRotatef(angle,0,1,0.4);

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,0.2,0.8);

    glEnd();

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glVertex3f(-0.2,0.2,-0.8);

    glEnd();

    glBegin(GL_QUAD_STRIP);/四邊形構成彩帶

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glVertex3f(-0.2,0.2,0.8);

     glVertex3f(-0.2,0.2,-0.8);

     glEnd();

     ///後面是線

     glColor3f(0,0,0);

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,0.2,0.8);

    glEnd();

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glVertex3f(-0.2,0.2,-0.8);

    glEnd();

    glBegin(GL_LINES);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glVertex3f(-0.2,0.2,0.8);

     glVertex3f(-0.2,0.2,-0.8);

     glEnd();

    glPopMatrix();

    glFlush();

    angle+=0.01;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();

}

3D透明旋轉三角柱加黑線

改顏色並刪掉四邊形一個點座標即可形成

#include<GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glColor3f(1,1,0);

    glPushMatrix();

    glRotatef(angle,0,1,0.4);

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

    glEnd();

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

    glEnd();

    glBegin(GL_QUAD_STRIP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glEnd();

     ///後面是線

     glColor3f(0,0,0);

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

    glEnd();

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

    glEnd();

    glBegin(GL_LINES);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glEnd();

    glPopMatrix();

    glFlush();

    angle+=0.01;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();

}

滑鼠控制轉動

glutmotion(motion)//控制滑鼠移動

glutmouse(mouse)//滑鼠按和放開

#include<GL/glut.h>

#include<stdio.h>

float angle=0,angle2=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

    glRotatef(angle,0,1,0);

    glRotatef(angle2,1,0,0);

    glColor3f(0,1,0);

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

    glEnd();

    glBegin(GL_POLYGON);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

    glEnd();

    glBegin(GL_QUAD_STRIP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glEnd();

     ///後面是線

     glColor3f(0,0,0);

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,0.8);

    glEnd();

    glBegin(GL_LINE_LOOP);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,-0.8);

    glEnd();

    glBegin(GL_LINES);

     glVertex3f(0.2,0.2,0.8);

     glVertex3f(0.2,0.2,-0.8);

     glVertex3f(0.2,-0.2,0.8);

     glVertex3f(0.2,-0.2,-0.8);

     glVertex3f(-0.2,-0.2,0.8);

     glVertex3f(-0.2,-0.2,-0.8);

     glEnd();

    glPopMatrix();

    glFlush();

    ///angle+=0.01;

}

void motion(int x, int y)

{

    printf("%d %d\n",x,y);

    angle=x;

    angle2=y;

}

int main(int argc,char **argv)

{

    glutInit(&argc, argv);

    glutCreateWindow("02160056簡瑜萱");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMotionFunc(motion);

    glutMainLoop();

}