Lm's圖學筆記 week15

 

#include <stdio.h> ///printf(),fprintf()

int main()

{

    FILE * fout= NULL; ///檔案的指標fout output用

    fout = fopen("檔名.txt","w+"); ///開檔，w+模式

     printf(     "Hello World\n");

    fprintf(fout,"Hello World\n");

}

先把freeglut-bin-freeglut.dll 複製到 week15_file 的專案目錄 

改專案設定 cbp 檔 將 working_dir 改成現在目錄 "."  

#include <stdio.h>

int main(int argc, char**argv )

{

    ///FILE * fout = NULL;

    ///fout = fopen("檔名.txt","w+");

    ///printf(     "Hello World\n");

    ///fprintf(fout,"Hello World\n");

    FILE * fin = NULL;

    fin = fopen("檔名.txt","r");

    ///scanf("%d",&n);   配int n

    ///scanf("%f",&f);   float f

    ///scanf("%c",&c);   char c

    ///scanf("%s",line); char line[100]

    char line[100];

    fscanf(fin, "%s", line);

    printf("你讀到了字串: %s\n",line);

    fscanf(fin, "%s", line);

    printf("你讀到了字串: %s\n",line);

}

    **中文部分會出現亂碼Settings Editor要用 WINDOW950**

    印出三個茶壺

#include <stdio.h>

#include <GL/glut.h>

float angle=0, diff=2;

void timer(int t){

    glutTimerFunc( 30, timer, t+1);

    angle += diff;

    if(angle>90) diff=-2;

    if(angle<0) diff=+2;

    glutPostRedisplay();

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        ///glutSolidTeapot(0.3); ///身體

        glPushMatrix();

            glTranslatef(-0.3,0,0);///掛在正確的地方

            glRotatef(angle, 0,0,1);///旋轉

            glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

            glutSolidTeapot(0.3); ///左手臂

            glPushMatrix();

                ///glutSolidTeapot(0.3); ///左手肘

            glPopMatrix();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc, char ** argv )

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15-file");

    glutTimerFunc(0,timer,0);

    glutDisplayFunc(display);

    glutMainLoop();

}

再新增三行移動旋轉移動

#include <stdio.h>

#include <GL/glut.h>

float angle[20]={}, diff=2;///本來只有1個角度現在有多個

int angleID=0;  ///現在要改第幾個角度

void timer(int t){

    glutTimerFunc( 30, timer, t+1);

    angle[angleID] += diff;

    if(angle[angleID]>90) diff=-2;

    if(angle[angleID]<0) diff=+2;

    glutPostRedisplay();

}

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

    if(key=='1') angleID=1;

    if(key=='0') angleID=0;

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glutSolidTeapot(0.3); ///身體

        glPushMatrix();

            glTranslatef(-0.3,0,0);///3掛在正確的地方

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

            glTranslatef(-0.3,0,0);///1把關節旋轉中心放到畫面中心

            glutSolidTeapot(0.3); ///左手臂

            glPushMatrix();

                glTranslatef(-0.3,0,0);

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

                glTranslatef(-0.3,0,0);

                glutSolidTeapot(0.3); ///左手肘

            glPopMatrix();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc, char ** argv )

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15-file");

    glutKeyboardFunc(keyboard);

    glutTimerFunc(0, timer, 0);

    glutDisplayFunc(display);

    glutMainLoop();

}