🔺電腦圖學2019-05-15 Week13
(1)主題:檔案
(2)主題:關節、擺動作
(3)主題:複習
(4)作業:機器人擺動作
#開啟Console applocation
> Run一次測試看看專案有沒有問題
> 之後刪除程式碼,用程式碼寫出一個檔案
程式碼如下:
#include <stdio.h>
FILE * fout=NULL;///寫另一個檔案
FILE * fin=NULL;///讀另一個檔案
int main()
{///檔案寫檔
fout = fopen("filename.txt", "w+");///(2)我們要開檔案
for(int i=0; i<20; i++){
/// printf( "Hello World\n");
fprintf(fout,"Hello World\n");///(3)印出來到檔案
}
}
> 開啟檔案看一下內部,可以看到順利printf了20次Hello World
現在換寫另一個關節角度的檔案:motion.txt
程式碼如下:
(1)沒加空格版本
#include <stdio.h>
FILE * fout2=NULL;///Now2 寫另一個檔案
FILE * fin=NULL;///Now2 讀另一個檔案
float angle[20];///Now2 我們有20個關節的角度
int main()
{///檔案寫檔
fout2 = fopen("motion.txt", "w+");///Now2 另一個有關節的檔案
for(int i=0; i<20; i++){
fprintf(fout2, "%.2f", angle[i]);///Now2 另一個有關節的檔案
}
///若沒有加空格,數字就真的黏起來了
}
> 開啟檔案看一下內部,可以看到數字真的黏起來了
>所以修改一下,增加空格,就不會黏起來
(2)加空格版本
#include <stdio.h>
FILE * fout2=NULL;///Now2 寫另一個檔案
FILE * fin=NULL;///Now2 讀另一個檔案
float angle[20];///Now2 我們有20個關節的角度
int main()
{///檔案寫檔
fout2 = fopen("motion.txt", "w+");///Now2 另一個有關節的檔案
for(int i=0; i<20; i++){
fprintf(fout2, "%.2f ", angle[i]);///Now2 另一個有關節的檔案
}
///加空格,數字就不會黏起來
}
#include <stdio.h>
FILE * fout2=NULL;///Now2 寫另一個檔案
FILE * fin=NULL;///Now2 讀另一個檔案
float angle[20];///Now2 我們有20個關節的角度
int main()
{///檔案寫檔
fout2 = fopen("motion.txt", "w+");///Now2 另一個有關節的檔案
for(int i=0; i<20; i++){
fprintf(fout2, "%.2f ", angle[i]);///Now2 另一個有關節的檔案
}
///加空格,數字就不會黏起來
}
#GLUT
1、Download Freeglut package
2、將檔案解壓縮後複製一個libfreeglut.a檔並重新命名為libglut32.a
3、開啟Code Blocks>新增一個新的專案>點選Glut project
4、命名專案>選擇資料存放區(C:\Users\user\Downloads\freeglut\lib)>Finish
刪除全部程式碼
到小葉老師的網站 http://120.125.89.81/
download以下三個檔案
step02-4rotateOK.cpp
並在CodeBlocks貼上程式碼
(1)畫白茶壺
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot( 0.3 );
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutDisplayFunc(display);
glutMainLoop();
}
(2)畫出兩個茶壺,一紅一白
#include <GL/glut.h>
float angle[20];///NOW2
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();
glTranslatef(0.3, 0, 0);
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutDisplayFunc(display);
glutMainLoop();
}
(3)讓紅茶壺當成關節,並藉由滑鼠左右移動使茶壺360度轉動
#include <GL/glut.h>
float angle[20];///NOW2
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
void motion(int x, int y)///NOW2
{///NOW2
angle[1] += x-oldX;///NOW2
oldX = x;///NOW2
display();///NOW2
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
(4)將右手臂完整新增,也讓他可以轉動360度
#include <GL/glut.h>
float angle[20];///NOW2
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
void motion(int x, int y)///NOW2
{///NOW2
angle[1] += x-oldX;///NOW2
oldX = x;///NOW2
display();///NOW2
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
(5)增加左手臂,讓兩隻手皆可以轉動360度
#include <GL/glut.h>
float angle[20];///NOW2
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();///右邊
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPushMatrix();///左邊
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
void motion(int x, int y)///NOW2
{///NOW2
angle[1] += x-oldX;///NOW2
oldX = x;///NOW2
display();///NOW2
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
(7) 使轉動角度顯示在小黑上
鍵盤按1 > 控制右手肩膀關節
鍵盤按2> 控制右手手肘關節
鍵盤按3> 控制左手肩膀關節
鍵盤按4> 控制左手手肘關節
再藉由滑鼠左右移動使每個關節360度轉動
#include <GL/glut.h>
float angle[20];///NOW2
int angleID=1;///NOW3
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();///右邊
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[2], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPushMatrix();///左邊
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[3], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[4], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
#include <stdio.h>///NOW3
void motion(int x, int y)///NOW2
{///NOW2
angle[angleID] += x-oldX;///NOW3
oldX = x;///NOW2
for(int i=0;i<20;i++){///NOW3
printf(" %.2f ", angle[i]);///NOW3
}
printf("\n");///NOW3
display();///NOW2
}
void keyboard(unsigned char key, int x, int y)///NOW3
{///NOW3
if(key=='1') angleID=1;///NOW3
if(key=='2') angleID=2;///NOW3
if(key=='3') angleID=3;///NOW3
if(key=='4') angleID=4;///NOW3
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutKeyboardFunc(keyboard);///NOW3
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
(8)將角度printf出來後,存下檔案:motion.txt
!!!! 注意 !!! 檔案位置不在該專案資料夾,檔案位在--> C:\Users\user\Desktop\freeglut\bin
#include <GL/glut.h>
#include <stdio.h>///NOW_FILE (0)
float angle[20];///NOW2
int angleID=1;///NOW3
FILE * fout = NULL;///NOW_FILE (1)
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();///右邊
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[2], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPushMatrix();///左邊
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[3], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[4], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
void motion(int x, int y)///NOW2
{///NOW2
angle[angleID] += x-oldX;///NOW3
oldX = x;///NOW2
if(fout == NULL) fout = fopen("motion.txt", "w+");///NOW_FILE (2)
for(int i=0;i<20;i++){///NOW3
printf(" %.2f ", angle[i]);///NOW3
fprintf(fout, " %.2f ", angle[i]);///NOW_FILE
}
printf("\n");///NOW3
fprintf(fout, "\n");///NOW_FILE
display();///NOW2
}
void keyboard(unsigned char key, int x, int y)///NOW3
{///NOW3
if(key=='1') angleID=1;///NOW3
if(key=='2') angleID=2;///NOW3
if(key=='3') angleID=3;///NOW3
if(key=='4') angleID=4;///NOW3
if(key=='w'){///NOW_FILE
fout = fopen("motion.txt", "w+");///NOW_FILE (2)
}
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutKeyboardFunc(keyboard);///NOW3
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
(9)compiler後按r 會在小黑窗printft出剛剛在 motion.txt 存下的檔案
鍵盤按1 > 控制右手肩膀關節
鍵盤按2> 控制右手手肘關節
鍵盤按3> 控制左手肩膀關節
鍵盤按4> 控制左手手肘關節
再藉由滑鼠左右移動使每個關節360度轉動
#include <GL/glut.h>
float angle[20];///NOW2
int angleID=1;///NOW3
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();///右邊
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[2], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPushMatrix();///左邊
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[3], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[4], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
#include <stdio.h>///NOW3
void motion(int x, int y)///NOW2
{///NOW2
angle[angleID] += x-oldX;///NOW3
oldX = x;///NOW2
for(int i=0;i<20;i++){///NOW3
printf(" %.2f ", angle[i]);///NOW3
}
printf("\n");///NOW3
display();///NOW2
}
void keyboard(unsigned char key, int x, int y)///NOW3
{///NOW3
if(key=='1') angleID=1;///NOW3
if(key=='2') angleID=2;///NOW3
if(key=='3') angleID=3;///NOW3
if(key=='4') angleID=4;///NOW3
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutKeyboardFunc(keyboard);///NOW3
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
(8)將角度printf出來後,存下檔案:motion.txt
!!!! 注意 !!! 檔案位置不在該專案資料夾,檔案位在--> C:\Users\user\Desktop\freeglut\bin
#include <GL/glut.h>
#include <stdio.h>///NOW_FILE (0)
float angle[20];///NOW2
int angleID=1;///NOW3
FILE * fout = NULL;///NOW_FILE (1)
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();///右邊
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[2], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPushMatrix();///左邊
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[3], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[4], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
void motion(int x, int y)///NOW2
{///NOW2
angle[angleID] += x-oldX;///NOW3
oldX = x;///NOW2
if(fout == NULL) fout = fopen("motion.txt", "w+");///NOW_FILE (2)
for(int i=0;i<20;i++){///NOW3
printf(" %.2f ", angle[i]);///NOW3
fprintf(fout, " %.2f ", angle[i]);///NOW_FILE
}
printf("\n");///NOW3
fprintf(fout, "\n");///NOW_FILE
display();///NOW2
}
void keyboard(unsigned char key, int x, int y)///NOW3
{///NOW3
if(key=='1') angleID=1;///NOW3
if(key=='2') angleID=2;///NOW3
if(key=='3') angleID=3;///NOW3
if(key=='4') angleID=4;///NOW3
if(key=='w'){///NOW_FILE
fout = fopen("motion.txt", "w+");///NOW_FILE (2)
}
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutKeyboardFunc(keyboard);///NOW3
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
#include <GL/glut.h>
#include <stdio.h>///NOW_FILE (0)
float angle[20];///NOW2
int angleID=1;///NOW3
FILE * fout = NULL;///NOW_FILE (1)
FILE * fin = NULL;///NOW_FILE_READ (1)
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f(1, 1, 1);///white
glutSolidTeapot( 0.3 );///body
glPushMatrix();///右邊
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[1], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[2], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPushMatrix();///左邊
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[3], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right arm
glPushMatrix();
glTranslatef(-0.2, 0, 0);///NOW2 (3)掛上去
glRotatef(angle[4], 0,0,1);///NOW2 ///(2)旋轉
glTranslatef(-0.15, 0, 0);///NOW2 (1)旋轉中心
glColor3f(1, 0, 0);///red
glutSolidTeapot( 0.2 );///right lower arm
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int oldX=0;///NOW2
void mouse(int button, int state, int x, int y)///NOW2
{///NOW2
oldX = x;///NOW2
}
void motion(int x, int y)///NOW2
{///NOW2
angle[angleID] += x-oldX;///NOW3
oldX = x;///NOW2
if(fout == NULL) fout = fopen("motion.txt", "w+");///NOW_FILE (2)
for(int i=0;i<20;i++){///NOW3
printf(" %.2f ", angle[i]);///NOW3
fprintf(fout, " %.2f ", angle[i]);///NOW_FILE
}
printf("\n");///NOW3
fprintf(fout, "\n");///NOW_FILE
display();///NOW2
}
void keyboard(unsigned char key, int x, int y)///NOW3
{///NOW3
if(key=='1') angleID=1;///NOW3
if(key=='2') angleID=2;///NOW3
if(key=='3') angleID=3;///NOW3
if(key=='4') angleID=4;///NOW3
if(key=='w'){///NOW_FILE
fout = fopen("motion.txt", "w+");///NOW_FILE (2)
}
if(key=='r'){
if(fin==NULL) fin = fopen("motion.txt", "r");///NOW_FILE_READ (2)
///scanf("%d", &n);
for(int i=0;i<20; i++){///NOW_FILE_READ
fscanf(fin, "%f", &angle[i]);///NOW_FILE_READ
printf(" %.2f ", angle[i]);///順便印出來看數字對不對
}
}
glutPostRedisplay();///NOW_FILE_READ 和 display()很像
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
///glutInitWindowSize(600,600);///可以開大一點的window
glutCreateWindow("Week 13 angle motion file");
glutKeyboardFunc(keyboard);///NOW3
glutMouseFunc(mouse);///NOW2
glutMotionFunc(motion);///NOW2
glutDisplayFunc(display);
glutMainLoop();
}
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