week05_12750316

 week05_1_i_love_you

size(300,300);

stroke(255,0,0);

for(int xx=0;xx<300;xx++){

  for(int yy=0;yy<300;yy++){Add commentMore actions

    float x=(xx-150)/100.0;

    float y=-(yy-150)/100.0;

    float d=x*x+y*y-1;

    if(d*d*d-x*x*y*y*y<0) point(xx,yy);

  }

}

week05_1b_i_love_you

size(300,300);

stroke(255,0,0);

translate(width/2,height/2);

for(int xx=-150;xx<150;xx++){Add commentMore actions

  for(int yy=-150;yy<150;yy++){

    float x=xx/100.0;

    float y=-yy/100.0;

    float d=x*x+y*y-1;

    if(d*d*d-x*x*y*y*y<0) point(xx,yy);

  }

}

week05_02_for_for_ellipse_arc_arc_radians_360

size(600,600);

background(0);

for(int i=0;i<6;i++){

  for(int j=0;j<6;j++){

    int now=i*6+j;

    ellipse(50+j*100,50+i*100,80,80);

    arc(50+j*100,50+i*100,60,60,0,now,PIE);

    arc(50+j*100,50+i*100,40,40,0,radians(now*10),PIE);

    text(now,j*100,i*100+30);

  }

}

week05_03_atan2_dy_dx_text_radians_degrees

//degrees vs. radians 結合 week04_1 和 week05_2

void setup() {

  size(400, 400);

}

void draw() {

  background(128);

  line(200,200,400,200);

  line(200,200,mouseX,mouseY);

  float dx = mouseX-200, dy = mouseY-200;

  float a = atan2(dy, dx);

  arc(200,200,200,200,0,a,PIE);

  textSize(30);

  text("radians:"+a,100,100);

  text("degrees:"+degrees(a),100,130);

}

week05_03b_atan2_dy_dx_text_radians_degrees

//degrees vs. radians 結合 week04_1 和 week05_2

void setup() {

  size(400, 400);

}

void draw() {

  background(128);

  line(200,200,400,200);

  line(200,200,mouseX,mouseY);

  float dx = mouseX-200, dy = mouseY-200;

  float a = atan2(dy, dx);

  //arc(200,200,200,200,0,a,PIE);

  if(a<0) arc(200,200,200,200,a,0,PIE);

  else    arc(200,200,200,200,0,a,PIE);

  textSize(30);

  text("radians:"+a,100,100);

  text("degrees:"+degrees(a),100,130);

}

week05_4_translate_mouseX_mouseY_rotate_radians_frameCount

void setup() {Add commentMore actions

  size(400, 400);

}

void draw() {

  background(204);

  translate(mouseX,mouseY);

  rotate(radians(frameCount));

  rect(-50,-5,100,10);

}

week05_5_rotate_radians_frameCount_translate_mouseX_mouseY

void setup() {Add commentMore actions

  size(400, 400);

}

void draw() {

  background(204);

  rotate(radians(frameCount)*10);

  translate(mouseX,mouseY);

  rect(-50,-5,100,10);

}

week05_6_pushMatrix_popMatrix_good

void setup() {

  size(400, 400);

}

void draw() {

  background(204);

  

  translate(width/2,height/2);

  rotate(radians(frameCount)*10);

  rect(-50,-5,100,10);

  

  translate(width/2-100,height/2);

  rotate(radians(frameCount)*10);

  rect(-50,-5,100,10);

}

week05_6_pushMatrix_popMatrix_bad

void setup() {

  size(400, 400);

}

void draw() {

  background(204);

  pushMatrix();

  translate(width/2,height/2);

  rotate(radians(frameCount)*10);

  rect(-50,-5,100,10);

  popMatrix();

  

  pushMatrix();

  translate(width/2-100,height/2);

  rotate(radians(frameCount)*10);

  rect(-50,-5,100,10);

  popMatrix();

}

week05_7_many_ pushMatrix_ popMatrix

void setup() {

  size(500, 500);

}

void draw() {

  background(204);

  for(int x=50;x<500;x+=100){

    for(int y=50;y<500;y+=100){

      pushMatrix();

        translate(x,y);

        rotate(radians(frameCount));

        rect(-50,-5,100,10);

      popMatrix();

    }

  }

}