聽均一席話如聽一席話 Week05 11160712

 //week05_01_cwa_typhoon_images 

//把老師的github圖檔放入 hithub.com/jsyeh/cwa
//存檔後ctrl + K開啟檔案總管
PImage img = loadImage("TWI_IR1_CR_800-2024-10-02-08-00.jpg");
size(800,800);
background(img);

//week05_02_cwa_typhoon_array_loadStrings
//把老師的list.txt匯入(裡面有299張圖片的檔名)
int N=299;
PImage [] imgs = new PImage[299];//準備好299張圖片，對應的陣列
void setup(){
  size(800,800);
  String[] filenames = loadStrings("list.txt");
   for(int i=0;i<N;i++){//把每一張圖片都讀進來
     imgs[i] = loadImage(filenames[i]);
   } 
}
void draw(){
  int i=frameCount % N;//照時間輪 %N取餘數，以免超過陣列大小
  background(imgs[frameCount%N]);//現在顯示第i張圖
}
把299張圖片連貫起來

//week05_03_cwa_typhoon_2750
//整合上周和今天的程式
PImage img;
void setup(){
  size(500,500);//小視窗，大圖片
  img = loadImage("LCC_VIS_TRGB_2750-2024-10-02-07-40.jpg");
}
float s =1.0,x=0,y=0;
float realX=0,realY=0;
void draw(){
  background(255);//白背景
  translate(x,y);
  scale(s);
  image(img,0,0);
}
void mouseDragged(){
  x += mouseX-pmouseX;
  y += mouseY-pmouseY;
}
void mouseWheel(MouseEvent e) {
  realX = (mouseX-x)/s;
  realY = (mouseY-y)/s;
  float oldS=s;
  if (e.getCount()>0)s *=0.9;
  else s *=1.1;
  x=x+realX*oldS-realX*s;
  y=y+realY*oldS-realY*s;
}
放入一張高解析度的圖片，並拖曳、放大縮小

//week05_05_pendulum_cos_sin_draw_line
void setup(){
  size(400,600);
  
}
float x=200,y=300;
void draw(){
  background(255);
  stroke(0);
  line(200,100,x,y);
  ellipse(x,y,50,50);
  stroke(255,0,0);
  line(x,y,x,y+100);
  PVector d=new PVector(x-200,y-100).normalize();
  PVector d2=new PVector(0,2);
  float g =PVector.dot(d,d2);
  d.mult(100*g);
  stroke(0,255,0);
  line(x,y,x+d.x,y+d.y);
}
void mouseDragged(){
  x = mouseX;
  y = mouseY;
}

//week05_06_PVector_new_PVector_x_y
void setup(){
  size(400,600);
  c = new PVector(200,100);//new出新物件
  p = new PVector(200,130);//new出新物件
}
PVector c,p;
void draw(){
  background(255);
  ellipse(c.x,c.y,10,10);
  ellipse(p.x,p.y,10,10);
  
}


//week05_07_pendulum_PVector_normalize_dot_mult
void setup(){
  size(400,600);
}
float x=200,y=300;
void draw(){
  background(255);
  stroke(0);
  line(200,100,x,y);
  ellipse(x,y,50,50);
  stroke(255,0,0);
  line(x,y,x,y+100);
  PVector d=new PVector(x-200,y-100).normalize();
  PVector d2=new PVector(0,2);
  float g =PVector.dot(d,d2);//cos(a)
  d.mult(100*g);
  stroke(0,255,0);//綠色線往右下
  line(x,y,x+d.x,y+d.y);
  
  PVector N = new PVector(d.y,-d.x).normalize();//長度1
  N.mult(100*sin(acos(g)));//g是cos(a),acos(g)就是角度a
  stroke(0,0,255);//藍色線往右下
  line(x,y,x+N.x,y+N.y);
}
void mouseDragged(){//void mouseDragged()
  x = mouseX;
  y = mouseY;
}


//week05_08_pendulum_not_ok_PVecttor_sub_velocity
void setup(){
  size(400,600);
}
float x=200,y=300;
void draw(){
  background(255);
  stroke(0);
  line(200,100,x,y);
  ellipse(x,y,50,50);
  stroke(255,0,0);//紅色往下的線
  line(x,y,x,y+100);
  
  PVector d=new PVector(x-200,y-100).normalize();
  PVector d2=new PVector(0,2);
  float g =PVector.dot(d,d2);//cos(a)
  d.mult(100*g);
  stroke(0,255,0);//綠色線往右下
  line(x,y,x+d.x,y+d.y);
  
  PVector N =  PVector.sub(d2.mult(100),d);//PVector N = new PVector(d.y,-d.x).normalize();//長度1
  //N.mult(100*sin(acos(g)));//g是cos(a),acos(g)就是角度a
  stroke(0,0,255);//藍色線往右下
  line(x,y,x+N.x,y+N.y);
  
  v.x += N.x/1000;
  v.y += N.y/1000;
  x += v.x;
  y += v.y;
}
PVector v = new PVector();
void mouseDragged(){//void mouseDragged()
  x = mouseX;
  y = mouseY;
}