Week16 采穎的上課筆記

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(1)內插公式
(2)存檔、讀檔
(3)利用Timer自動內插
(4)鍵盤+滑鼠

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用Excel
內插公式=A2*90000+(1-A2)*30000
angle=alpha*new_angle+(1-alpha)*old_angle























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(1)加入內插公式的函式到HW裡
(2)準備好Timer函式


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寫檔案

#include <stdio.h>
FILE * fout = NULL;//檔案指標
void keyboard(unsigned char key, int x, int y)
{
  printf("%c\n",key);
  if(key=='0') now=0;
  if(key=='1') now=1;
  if(key=='2') now=2;
  if(key=='3') now=3;
  if(key=='4') now=4;
  if(key=='5') now=5;
  if(key=='s'||key=='S'){
     if(fout == NULL){
        fout = fopen("file.txt","w+");
        printf("現在我產生一個file.txt的檔案在目錄裡面哦\n");
  }
  fprintf(fout,"%.3f %.3f %.3f %.3f %.3f\n",
          angle[0],angle[1],angle[2],angle[3],angle[4]);
  printf("現在我把一些數字印到檔案裡面%.3f %.3f %.3f %.3f %.3f\n",
          angle[0],angle[1],angle[2],angle[3],angle[4]);
 }
}