week13

今日主題:檔案

開啟codeblock->新增project選擇貝殼程式


打上程式碼執行會發現小黑視窗沒東西跑出來QbQ
這時看向紅色框起來的地方
執行出來的結果會在那裡~~


找到檔案所在的位置 右鍵用notepad++開啟


開啟後就會看到執行出來的結果

程式碼:
#include <stdio.h> FILE * fout=NULL;///(1)宣告 檔案指標 變數 int main() { fout = fopen("filename.text","w+");///開檔案 for(int i=0;i<20;i++){ fprintf(fout,"Hello World\n"); } }


#include <stdio.h> FILE * fout=NULL;///(1)宣告 檔案指標 變數 float angle[20]; int main() { fout = fopen("motion.txt","w+");///開檔案 for(int i=0;i<20;i++){ fprintf(fout," %.1f", angle[i]);///執行結果會在資料夾 printf(" %.1f", angle[i]);///執行結果可直接在小黑視窗顯示 ///要小心,沒有空格就會失敗 ///%f會印出太多的0,不好看。要小數點下第一位 %.1f } }

複習關節擺動:

重複以前的步驟:搜尋freeglut->下載->解壓縮拖移到桌面->複製、改檔名(libglut32.a)->
                           開啟codeblock新建一個新的GLUT project


執行:滑鼠可順時針逆時針控制茶壺轉動


#include <GL/glut.h> float angle[20];///NOW void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix();///body glColor3f(1,1,1);///white glutSolidTeapot( 0.3 );///body glPushMatrix();///right Arm glTranslatef(0.18, 0, 0);///(3)掛到肩上 glRotatef(angle[1], 0,0,1);///(2)轉動 ///NOW glTranslatef(0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///right upper arm glPopMatrix(); glPopMatrix(); glutSwapBuffers(); } int oldX;///NOW void mouse(int button, int state, int x, int y)///NOW { oldX = x;///NOW } void motion(int x, int y)///NOW { angle[1] += (x-oldX);///NOW oldX = x;///NOW display();///NOW } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); ///glutInitWindowSize(600,600);///我們可以開很大的視窗 glutCreateWindow("week 13 motion TRT angle file"); glutMouseFunc(mouse);///NOW glutMotionFunc(motion);///NOW glutDisplayFunc(display); glutMainLoop(); }





執行:滑鼠控制兩個相連的茶壺一起順時針逆時針轉動


#include <GL/glut.h> float angle[20];///NOW void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix();///body glColor3f(1,1,1);///white glutSolidTeapot( 0.3 );///body glPushMatrix();///right Arm glTranslatef(0.18, 0, 0);///(3)掛到肩上 glRotatef(angle[1], 0,0,1);///(2)轉動 ///NOW glTranslatef(0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///right upper arm glPushMatrix();///NOW2 長出下手臂 glTranslatef(0.18, 0, 0);///(3)掛到肘上 glRotatef(angle[1], 0,0,1);///(2)轉動 ///NOW glTranslatef(0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///right lower arm glPopMatrix(); glPopMatrix(); glPushMatrix();///left Arm glTranslatef(-0.18, 0, 0);///(3)掛到肩上 glRotatef(angle[1], 0,0,1);///(2)轉動 ///NOW glTranslatef(-0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///left upper arm glPushMatrix();///NOW2 長出下手臂 glTranslatef(-0.18, 0, 0);///(3)掛到肘上 glRotatef(angle[1], 0,0,1);///(2)轉動 ///NOW glTranslatef(-0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///left lower arm glPopMatrix(); glPopMatrix(); glPopMatrix(); glutSwapBuffers(); } int oldX;///NOW void mouse(int button, int state, int x, int y)///NOW { oldX = x;///NOW } void motion(int x, int y)///NOW { angle[1] += (x-oldX);///NOW oldX = x;///NOW display();///NOW } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); ///glutInitWindowSize(600,600);///我們可以開很大的視窗 glutCreateWindow("week 13 motion TRT angle file"); glutMouseFunc(mouse);///NOW glutMotionFunc(motion);///NOW glutDisplayFunc(display); glutMainLoop(); }






執行:按1234可以分別控制關節轉動;按r鍵可以直接讀檔案做出旋轉

#include <stdio.h> ///(0) ///NOW4 #include <GL/glut.h> FILE * fout=NULL;///(1) ///NOW4 FILE * fin =NULL;///(1) ///NOW5 float angle[20];///NOW int angleID=1;///第幾個要轉動的關節 ///NOW3 void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix();///body glColor3f(1,1,1);///white glutSolidTeapot( 0.3 );///body glPushMatrix();///right Arm glTranslatef(0.18, 0, 0);///(3)掛到肩上 glRotatef(angle[1], 0,0,1);///(2)轉動 ///NOW glTranslatef(0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///right upper arm glPushMatrix();///NOW2 長出下手臂 glTranslatef(0.18, 0, 0);///(3)掛到肘上 glRotatef(angle[2], 0,0,1);///(2)轉動 ///NOW glTranslatef(0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///right lower arm glPopMatrix(); glPopMatrix(); glPushMatrix();///left Arm glTranslatef(-0.18, 0, 0);///(3)掛到肩上 glRotatef(angle[3], 0,0,1);///(2)轉動 ///NOW glTranslatef(-0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///left upper arm glPushMatrix();///NOW2 長出下手臂 glTranslatef(-0.18, 0, 0);///(3)掛到肘上 glRotatef(angle[4], 0,0,1);///(2)轉動 ///NOW glTranslatef(-0.18, 0, 0);///(1)改變旋轉中心,放到中心 glColor3f(1,0,0);///red glutSolidTeapot( 0.2 );///left lower arm glPopMatrix(); glPopMatrix(); glPopMatrix(); glutSwapBuffers(); } int oldX;///NOW void mouse(int button, int state, int x, int y)///NOW { oldX = x;///NOW } void motion(int x, int y)///NOW { angle[angleID] += (x-oldX);///NOW ///NOW3 oldX = x;///NOW if(fout==NULL) fout=fopen("motion.txt", "w+");///NOW4 for(int i=0; i<20; i++){///NOW4 printf( "%.1f ", angle[i]);///NOW4 fprintf( fout, "%.1f ", angle[i]);///NOW4 } printf("\n");///NOW4 fprintf(fout, "\n");///NOW4 display();///NOW } void keyboard(unsigned char key, int x, int y)///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' || key=='W'){///NOW4 小寫的 w if(fout==NULL) fout=fopen("motion.txt", "w+");///NOW4 for(int i=0; i<20; i++){///NOW4 printf( "%.1f ", angle[i]);///NOW4 fprintf( fout, "%.1f ", angle[i]);///NOW4 } printf("\n");///NOW4 fprintf(fout, "\n");///NOW4 } if(key=='r'){///NOW5 if(fin==NULL) fin = fopen("motion.txt", "r");///NOW5 for(int i=0; i<20;i++){///NOW5 fscanf(fin, "%f", &angle[i]);///NOW5 }///NOW5 } glutPostRedisplay();///和 display()很像,但更好 ///NOW5 } int main(int argc, char**argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); ///glutInitWindowSize(600,600);///我們可以開很大的視窗 glutCreateWindow("week 13 motion TRT angle file"); glutKeyboardFunc(keyboard);///NOW3 glutMouseFunc(mouse);///NOW glutMotionFunc(motion);///NOW glutDisplayFunc(display); glutMainLoop(); }