WEEK14 天氣陰

1.寫檔

開啟codeblocks --> File/Empty file 檔名:week14-1

程式碼:

2.讀檔

程式碼:

3.開啟codeblocks 新增新專案，檔名:week14-angle-fprintf

複製week13-rect-many-TRT程式碼

程式碼:

完整程式碼:

#include <GL/glut.h>

#include <stdio.h>;

float angle[20],oldx=0;

int angleID=0;///0號關節，1號關節...

FILE * fout = NULL, * fin =NULL;

void myWrite()

{

    if(fout==NULL)fout=fopen("file.txt","w+");

    for(int i=0;i<20;i++){

        printf("%.1f",angle[i]);///小黑印出來

        fprintf(fout,"%.1f",angle[i]);///檔案印出來

    }

    printf("\n");///myWrite中加入，每呼叫一次，小黑視窗跳行

    fprintf(fout,"\n");///每呼叫一次，檔案跳行

}

void myRead()

{

    if(fout!=NULL){fclose(fout);fout=NULL;}

    if(fin==NULL)fin=fopen("file.txt","r");

    for(int i=0;i<20;i++){

        fscanf(fin,"%f",&angle[i]);

    }

    glutPostRedisplay();///重畫畫面

}

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

{

    if(key=='r')myRead();

    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);

    myWrite();

    oldx=x;

    glutPostRedisplay();///請glut重新整理

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);

    glRectd(0.3,0.5,-0.3,-0.5);///身體

    glPushMatrix();

        glTranslatef(0.3,0.4,0);///把手臂掛回身體

        glRotatef(angle[0],0,0,1);///對Z軸旋轉

        glTranslatef(-0.3,-0.4,0);///把手臂的旋轉中心，放中心

        glColor3f(1,0,0);

        glRectd(0.3,0.5,0.7,0.3);///手臂

        glPushMatrix();

            glTranslatef(0.7,0.4,0);///把手臂掛回紅色手臂

            glRotatef(angle[1],0,0,1);

            glTranslatef(-0.7,-0.4,0);///旋轉中心放中心

            glColor3f(0,1,0);///綠色手臂

            glRectd(0.7,0.5,1.0,0.3);

        glPopMatrix();

    glPopMatrix();

    glPushMatrix();

        glTranslatef(-0.3,0.4,0);///把手臂掛回身體

        glRotatef(angle[2],0,0,1);///對Z軸旋轉

        glTranslatef(0.3,-0.4,0);///把手臂的旋轉中心，放中心

        glColor3f(1,0,0);

        glRectd(-0.3,0.5,-0.7,0.3);///手臂

        glPushMatrix();

            glTranslatef(-0.7,0.4,0);///把手臂掛回紅色手臂

            glRotatef(angle[3],0,0,1);

            glTranslatef(0.7,-0.4,0);///旋轉中心放中心

            glColor3f(0,1,0);///綠色手臂

            glRectd(-0.7,0.5,-1.0,0.3);

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutInitWindowSize(600,600);

    glutCreateWindow("week13-rect-TRT");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    glutMotionFunc(motion);///呼叫前面motion函式

    glutMouseFunc(mouse);///呼叫前面mouse函式

    glutKeyboardFunc(keyboard);///呼叫前面的keyboard函式

    glutMainLoop();

}