Jain's 圖學筆記 #week14

 steap1

程式碼:

#include <GL/glut.h>
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    ///glutSolidSphere(0.3, 30, 30);///實心圓///範例偷來ㄉ
    glutWireSphere(0.3, 30, 30);///切線圓///範例偷來ㄉ
    glutSwapBuffers();
}
int main( int argc, char**argv)
{
    glutInit( &argc, argv );
    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );
    glutCreateWindow("08160333");
    glutDisplayFunc(display);
    glutMainLoop();
}

執行成果:

steap2

timmer

程式碼:

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    ///glutSolidSphere(0.3, 30, 30);///實心圓

    glutWireSphere(0.3, 30, 30);///切線圓

    glutSwapBuffers();

}

void timer(int t)///timer響起時, 做你要做的事

{

    glClearColor( 1, 0, 0, 0 );///清背景色:紅色

    display();///重製畫面

}

int main( int argc, char**argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("08160333");

    glutDisplayFunc(display);

    glutTimerFunc( 3000 , timer , 0 );

    glutMainLoop();

}

steap3
設定3秒開始旋轉

#include <GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef( angle, 0, 0, 1 );

        glutSolidCube( 0.3 );

    glPopMatrix();

    glutSwapBuffers();

}

void timer(int t)

///timer響起時, 做你要做的事 (鬧鐘)

{

    glutTimerFunc( 300, timer, t+1 ); ///起床第一件事, 先設定新鬧鐘

    glClearColor( 1, 0, 0, 0 );///清背景色:紅色

    angle++;

    display();///重製畫面

}

int main(int argc, char**argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("08160333");

    glutDisplayFunc(display);

    glutTimerFunc( 3000 , timer , 0 );

    glutMainLoop();

}

steap4轉完左邊轉右邊

程式碼:

#include <GL/glut.h>]

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef( angle, 0, 0, 1 );

        glutSolidCube( 0.3 );

    glPopMatrix();

    glutSwapBuffers();

}

int diff=2;

void timer(int t){

    glutTimerFunc(30, timer, t+1);

    glClearColor(1, 0, 0, 0);

    if(angle>90) diff=-2;

    if(angle<0) diff=+2;

    angle += diff;

    display();

}

int main( int argc, char**argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("08160333");

    glutDisplayFunc(display);

     glutTimerFunc( 3000 , timer , 0 );

    glutMainLoop();

}