## week14
把環境設好: download opencv
小心:add PATH
小心:目錄不要改
小心:重開codeblocks
codeblocks: setting-compiler
Search directories的Compiler: C:\OpenCV2.1\include
Search directories的Linker: C:\OpenCV2.1\lib
Linker setting: cv210 cxcore210 highgui210
再把 Github 的程式下載(兩種下載法 Git指令 or Download ZIP)
再把week13-2改成week14-1
用右鍵Notepad++開 .cbp 檔，改Titlle
# week14-1_alpha_interpolation_angle_timer
1.用excel更清楚瞭解內插法
計時器
```cppvoid timer(int t) { glutTimerFunc(1000,timer,t+1); printf("起床:%d\n", t);}
``` glutTimerFunc(0,timer,0);```進階---加入新的程式碼```cppfloat oldAngle[20] = {},newAngle[20] = {};void timer(int t) { glutTimerFunc(50,timer,t+1); if(t%20==0) { if(fin==NULL) fin = fopen("angle.txt","r"); for(int i=0;i<20;i++) { oldAngle[i] = newAngle[i]; fscanf(fin,"%f",&newAngle[i]); } } float alpha = (t%20) / 20.0; for(int i=0;i<20;i++) { angle[i] = newAngle[i]*alpha+oldAngle[i]*(1-alpha); } glutPostRedisplay();}void keyboard(unsigned char key,int x,int y){ if(key=='p') {///play播放 glutTimerFunc(0,timer,0); }```# week14-2_angleX_angleY_10
```cpp
void timer(int t) {
glutTimerFunc(1000,timer,t+1);
printf("起床:%d\n", t);
}
```
glutTimerFunc(0,timer,0);
```
進階---加入新的程式碼
```cpp
float oldAngle[20] = {},newAngle[20] = {};
void timer(int t) {
glutTimerFunc(50,timer,t+1);
if(t%20==0) {
if(fin==NULL) fin = fopen("angle.txt","r");
for(int i=0;i<20;i++) {
oldAngle[i] = newAngle[i];
fscanf(fin,"%f",&newAngle[i]);
}
}
float alpha = (t%20) / 20.0;
for(int i=0;i<20;i++) {
angle[i] = newAngle[i]*alpha+oldAngle[i]*(1-alpha);
}
glutPostRedisplay();
}
void keyboard(unsigned char key,int x,int y){
if(key=='p') {///play播放
glutTimerFunc(0,timer,0);
}
```
# week14-2_angleX_angleY_10
1.把week14-1複製過來用
程式碼修改如下:
2.把float angle{20}={};改成float angleX[10]={},angleY[10]={};
3.把原本的for(int i=0;i<20;i++) 變成 for(int i=0;i<10;i++)
1.if(key=='0') angleID = 0;做到9
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