A

W|EEK05

 1. 主題: 移動、旋轉、縮放、矩陣

https://jsyeh.org/3dcg10/下載

data/zip =>下載\windows.zip =>下載\windows\data\一堆3D模型 下面區域，可以交換兩行程式碼(移動、轉動)會有自轉公轉的效果

windows.zip=>下載\windows\transformation.exe

. 主題: 鍵盤函式 glutKeyboardFunc()

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

void keyboard(unsigned char key,int x,int y)

{

    printf("你按下了%c在%d %d 座標 \n",key ,x,y);

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMainLoop();

}

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

void keyboard(unsigned char key,int x,int y)

{

}

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

{

}

void motion(int x, int y)

{

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

#include <GL/glut.h>

#include <stdio.h>

float x=0,y=0,z=0;

int oldX=0,oldY=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef((x-150)/150.0,-(y-150)/150.0,z);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard(unsigned char key,int mouseX,int mouseY)

{

}

void mouse (int button, int state ,int mouseX ,int mouseY)

{

}

void motion(int mouseX, int mouseY)

{

    x+=(mouseX-oldX); y+=(mouseY-oldY);

    oldX=mouseX; oldY=mouseY;

    display();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

#include <GL/glut.h>

#include <stdio.h>

float x=150,y=150,z=0;

int oldX=0,oldY=0;

void display()

{

    glClearColor(0.5,0.5,0.5,1)'

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef((x-150)/150.0,-(y-150)/150.0,z);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard(unsigned char key,int mouseX,int mouseY)

{

}

void mouse (int button, int state ,int mouseX ,int mouseY)

{

    oldX=mouseX;oldY=mouseY;

}

void motion(int mouseX, int mouseY)

{

    x+=(mouseX-oldX); y+=(mouseY-oldY);

    oldX=mouseX; oldY=mouseY;

    display();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

                                                                             

#include <GL/glut.h>

#include <stdio.h>

float x=150,y=150,z=0,scale=1.0;

int oldX=0,oldY=0;

void display()

{

    glClearColor(0.5,0.5,0.5,1)'

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef((x-150)/150.0,-(y-150)/150.0,z);

    glScale(scale,scale,scale);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard(unsigned char key,int mouseX,int mouseY)

{

}

void mouse (int button, int state ,int mouseX ,int mouseY)

{

    oldX=mouseX;oldY=mouseY;

}

void motion(int mouseX, int mouseY)

{

    if(mouseX-oldX>0)scale*=1.01;

    if(mouseX-oldX<0)scale*=0.99;

     oldX=mouseX; oldY=mouseY;

    display();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}