week04 颱風來了快跑

 //week04_1__PShape_loadShape_shape

size(500, 500);

PShape taiwan = loadShape("taiwan.svg"); //本周

PShape taiwan2 = loadShape("Taiwan-icon.svg");

shape(taiwan);

shape(taiwan2);

//week04_2__pushMatrix_scale_popMatrix

size(500, 500);

PShape taiwan2 = loadShape("taiwan.svg"); //本周

PShape taiwan = loadShape("Taiwan-icon.svg");

pushMatrix();

  scale(10);

  shape(taiwan);

popMatrix();

pushMatrix();

   scale(0.5);

   shape(taiwan2);

popMatrix();

//week04_3__void_setup_void_draw_void_wheelMouse

PShape taiwan2, taiwan; //宣告變數

void setup() {

  size(500, 500);

  taiwan2 = loadShape("taiwan.svg"); //本周

  taiwan = loadShape("Taiwan-icon.svg");

}

float taiwanScale = 1;

void draw() {

  background(#92CF25);

  pushMatrix();

    scale(10*taiwanScale);

   shape(taiwan);

  popMatrix();

  pushMatrix();

     scale(0.5*taiwanScale);

  shape(taiwan2);

  popMatrix();

}

void mouseWheel(MouseEvent e) {//mouseWheel 是mouse的滾輪

  float d = e.getCount();

  if (d>0) taiwanScale *=1.1;

  else taiwanScale *=0.9;

}

//week04_4_world_svg_flaot_s_scale_void_mouseWheel

PShape world;

void setup() {

  size(800, 400);

  world = loadShape("world.svg");

}

float s = 0.4;

void draw() {

  background(#92C2F5);

  scale(s);// 改用變數s 初始值為0.4

  shape(world);

}

void mouseWheel(MouseEvent e) {

  if (e.getCount()>0) s *= 1.1;

  else s *=0.9;

}

//week04_5_float_x_y_translate_x_y_void_mouseDragged

PShape world;

void setup() {

  size(800, 400);

  world = loadShape("world.svg");

}

float s = 0.4, x =0, y=0;

void draw() {

  background(#92C2F5);

  translate(x, y);

  scale(s);// 改用變數s 初始值為0.4

  shape(world);

}

void mouseDragged() {

  x += mouseX-pmouseX;

  y += mouseY-pmouseY;

}

void mouseWheel(MouseEvent e) {

  if (e.getCount()>0) s *= 1.1;

  else s *=0.9;

}

能用滑鼠拖曳地圖 但定點不是台灣

//week04_6_better_scale

PShape world;

void setup() {

  size(800, 400);

  world = loadShape("world.svg");

}

float s = 0.4, x =0, y=0;

float realX = 0, realY = 0;

void draw() {

  background(#92C2F5);

  translate(x, y);

  scale(s);// 改用變數s 初始值為0.4

  shape(world);

  ellipse(realX, realY, 10, 10);

}

void mouseDragged() {

  x += mouseX-pmouseX;

  y += mouseY-pmouseY;

}

void mouseWheel(MouseEvent e) {

  realX = (mouseX -x)/s; //地圖上，真的座標

  realY  = (mouseY -y)/s;//地圖上，真的座標

  float oldS = s;

  if (e.getCount()>0) s *= 1.1;

  else s *=0.9;

  x = x+ realX*oldS - realX*s;

  y = y+ realY*oldS - realY*s;

}

可以定點放大位置

//week04_7_carrot01_background_stroke_fill_ellipse

size(600,500);

background(0);

stroke(255);

fill(0);

ellipse(50,50,100,100);

// week04_8_carrot02_void_setup_void_draw_void_mouseDragged

void setup() {

  size(600, 500);

  background(0); //黑畫1次

  stroke(255);

  fill(0);

}

void draw() {

  //  ellipse(mouseX,mouseY,100,100);

}

void mousePressed() {

  ellipse(mouseX, mouseY, 100, 100);

// week04_9_carrot03_float_s_mouseButton_LEFT_RIGHT

void setup() {

  size(600, 500);

  background(0); //黑畫1次

  stroke(255);

  fill(0);

}

void draw() {

  //  ellipse(mouseX,mouseY,100,100);

}

float s =25;

void mousePressed() {

  ellipse(mouseX, mouseY, s, s);

  if (mouseButton==LEFT) s *=1.1;

  if (mouseButton==RIGHT) s*=0.9;

}

//week_04_a_carrot04_float_t_cos_t_sin_t

void setup() {

  size(600, 500);

  background(0); //黑畫1次

  stroke(255);

  fill(0);

}

void draw() {

  //  ellipse(mouseX,mouseY,100,100);

}

float s =25 ,t =0;

void mousePressed() {

  ellipse(300+200*cos(t), 250+200*sin(t), s, s);

  t +=0.06;

  if (mouseButton==LEFT) s *=1.1;

  if (mouseButton==RIGHT) s*=0.9;

}