2022年5月17日 星期二

古利夏醫生的艾爾迪亞日記week13

我早上買了10個水煎包，但我吃不完 嗚嗚嗚嗚嗚
step 1 劃出長方形，用四個參數畫出來的
#include <GL/glut.h>
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glRectf(0.3,0.5,-0.3,-0.5);
    glutSwapBuffers();
}
int main(int argc, char**argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
    glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");
    glutDisplayFunc(display);
    glutMainLoop();

}

step2 把手加上去而且可以轉動
#include <GL/glut.h>
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);
    glRectf(0.3,0.5,-0.3,-0.5);
    glPushMatrix();
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);
    glutSwapBuffers();
}
int main(int argc, char**argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
    glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");
    glutDisplayFunc(display);
    glutMainLoop();

}
step 3 把手臂的旋轉中心放到正中心
#include <GL/glut.h>
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);
    glRectf(0.3,0.5,-0.3,-0.5);
    glPushMatrix();
//glTranslatef(x,y,z) 把手臂放回身體
//glRotatef(angle,0,0,1);旋轉 Z軸
    glTranslatef(-0.3,-0.4,0); 手臂旋轉中心
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);
    glutSwapBuffers();
}
int main(int argc, char**argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
    glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");
    glutDisplayFunc(display);
    glutMainLoop();
}
把註解刪掉 把角度加上去
#include <GL/glut.h>
float angle=45;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);
    glRectf(0.3,0.5,-0.3,-0.5);
    glPushMatrix();
    glRotatef(angle,0,0,1);
    glTranslatef(-0.3,-0.4,0);
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);
    glutSwapBuffers();
}
int main(int argc, char**argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
    glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");
    glutDisplayFunc(display);
    glutMainLoop();

}

step 4 紅色方塊會跟著滑鼠轉動
#include <GL/glut.h>
float angle=45,oldX=0;
void mouse(int button,int state,int x,int y){
    oldX = x;
}
void motion(int x,int y){
    angle +=(x-oldX);
    oldX = x;
    glutPostRedisplay();
}
void display()
{
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);
    glRectf(0.3,0.5,-0.3,-0.5);
    glPushMatrix();
    glRotatef(angle,0,0,1);
    glTranslatef(-0.3,-0.4,0);
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);
    glutSwapBuffers();
}
int main(int argc, char**argv)
{
    glutInit(&argc,argv);
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
    glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutDisplayFunc(display);
    glutMainLoop();

}
step 5 添加一隻綠色手臂
#include <GL/glut.h>
float angle=45,oldX=0;
void mouse(int button,int state,int x,int y)
{
    oldX=x;
}
void motion(int x,int y)
{
    angle+=(x-oldX);
    oldX=x;
    glutPostRedisplay();///請GLUT重劃畫面
}
 void display()
 {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);///白色
    glRectf(0.3,0.5,-0.3,-0.5);///身體
    glPushMatrix();
        glTranslatef(0.3,0.4,0);///把手臂掛在身上
        glRotatef(angle,0,0,1);///對z軸旋轉
        glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);

    glPushMatrix();
        //glTranslatef(0.3,0.4,0);///把手臂掛在身上
        //glRotatef(angle,0,0,1);///對z軸旋轉
        //glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
        glColor3f(0,1,0);
        glRectf(0.7,0.5,1,0.3);
    glPopMatrix();

    glPopMatrix();
    glutSwapBuffers();
 }
 int main(int argc, char *argv[])//main()主函式 進階版
 {
    glutInit(&argc,argv);//把參數送給glutInit初始化
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
    ///glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");//開GLUT視窗
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutDisplayFunc(display);
    glutMainLoop();
 }
Step 6 綠色手臂也能動了
#include <GL/glut.h>
float angle=45,oldX=0;
void mouse(int button,int state,int x,int y)
{
    oldX=x;
}
void motion(int x,int y)
{
    angle+=(x-oldX);
    oldX=x;
    glutPostRedisplay();///請GLUT重劃畫面
}
 void display()
 {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);///白色
    glRectf(0.3,0.5,-0.3,-0.5);///身體
    glPushMatrix();
        glTranslatef(0.3,0.4,0);///把手臂掛在身上
        glRotatef(angle,0,0,1);///對z軸旋轉
        glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);

    glPushMatrix();
        glTranslatef(0.7,0.4,0);///把手臂掛在身上
        glRotatef(angle,0,0,1);///對z軸旋轉
        glTranslatef(-0.7,-0.4,0);///挑整手臂的旋轉中心
        glColor3f(0,1,0);
        glRectf(0.7,0.5,1,0.3);
    glPopMatrix();

    glPopMatrix();
    glutSwapBuffers();
 }
 int main(int argc, char *argv[])//main()主函式 進階版
 {
    glutInit(&argc,argv);//把參數送給glutInit初始化
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
    ///glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");//開GLUT視窗
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutDisplayFunc(display);
    glutMainLoop();
 }

今日最後一個程式
#include <GL/glut.h>
float angle[20],oldX=0;
int angleID=0;///0號關節,1號關節...
void keyboard(unsigned char key,int x ,int y){
    if(key=='0') angleID=0;
    if(key=='1') angleID=1;
    if(key=='2') angleID=2;
    if(key=='3') angleID=3;
}
void mouse(int button,int state,int x,int y)
{
    oldX=x;
}
void motion(int x,int y)
{
    angle[angleID]+=(x-oldX);
    oldX=x;
    glutPostRedisplay();///請GLUT重劃畫面
}
 void display()
 {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glColor3f(1,1,1);///白色
    glRectf(0.3,0.5,-0.3,-0.5);///身體
    glPushMatrix();
        glTranslatef(0.3,0.4,0);///把手臂掛在身上
        glRotatef(angle[0],0,0,1);///對z軸旋轉
        glTranslatef(-0.3,-0.4,0);///挑整手臂的旋轉中心
        glColor3f(1,0,0);
        glRectf(0.3,0.5,0.7,0.3);

        glPushMatrix();
            glTranslatef(0.7,0.4,0);///把手肘掛回去
            glRotatef(angle[1],0,0,1);///旋轉
            glTranslatef(-0.7,-0.4,0);
            glColor3f(0,1,0);///綠色的
            glRectf(0.7,0.5,1.0,0.3);///下手肘
        glPopMatrix();

    glPopMatrix();

    glPushMatrix();
        glTranslatef(-0.3,0.4,0);///把手臂掛在身上
        glRotatef(angle[2],0,0,1);///對z軸旋轉
        glTranslatef(0.3,-0.4,0);///挑整手臂的旋轉中心
        glColor3f(1,0,0);
        glRectf(-0.3,0.5,-0.7,0.3);

        glPushMatrix();
            glTranslatef(-0.7,0.4,0);///把手肘掛回去
            glRotatef(angle[3],0,0,1);///旋轉
            glTranslatef(0.7,-0.4,0);
            glColor3f(0,1,0);///綠色的
            glRectf(-0.7,0.5,-1.0,0.3);///下手肘
        glPopMatrix();

    glPopMatrix();
    glutSwapBuffers();
 }
 int main(int argc, char *argv[])//main()主函式 進階版
 {
    glutInit(&argc,argv);//把參數送給glutInit初始化
    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);//雙緩衝區+3D深度功能
    ///glutInitWindowSize(600,600);
    glutCreateWindow("week13_rect_TRT");//開GLUT視窗
    glutKeyboardFunc(keyboard);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutDisplayFunc(display);//顯示用的函式

    glutMainLoop();
 }




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