/** developpé d'un cone de haut parleur
**/
import processing.svg.*;
PVector centre, event, vtmp;
float my_scale=1;
int nbr_event=6;
int rayon_cone=int(40*my_scale);
float rayon_coil=7.6*my_scale;
float bordure=5*my_scale;
float rayon_spider;
float delta1,delta2,delta3,delta4,delta5;
float screw_hole = 1.5*my_scale;
float radius_for_screw = 26.5 *my_scale;




void setup() {
    size(210, 297);
    //size(1000, 1000);
delta1=5*my_scale; //cercle interieur
delta2=3*my_scale; //branche 1
delta3=3*my_scale; // cercle intermediaire
delta4=3.5*my_scale; //branche 2 affect aussi la hauteur de l'event
delta5=6*my_scale; //dernier cercle
//rayon_spider=rayon_coil+delta1+delta2+delta3+delta4+delta5;
rayon_spider=30*my_scale; // match magnet enveloppe

 

  noLoop();  // Run once and stop
  centre = new PVector(rayon_spider+20+bordure, rayon_spider+20+bordure);
}


    
void cut_beans(int beans_qty, float rayon_int, float delta) {
    float alpha=2*PI/beans_qty;
    float theta=2*2*atan(delta/2/(rayon_int+(delta/2)));
    println("alpha : " + alpha + " theta : " + theta ); 

    for (int i = 0; i < beans_qty; i = i+1) {
      arc(0,0,2*rayon_int,2*rayon_int,0,alpha-theta,OPEN);
      arc(0,0,2*(rayon_int+delta),2*(rayon_int+delta),0,alpha-theta,OPEN);
      translate(rayon_int+(delta/2),0);
      arc(0,0,delta,delta,PI,2*PI,OPEN);
      translate(-rayon_int-(delta/2),0);
      rotate(alpha-theta);
      translate(rayon_int+(delta/2),0);
      arc(0,0,delta,delta,0,PI,OPEN);
      translate(-rayon_int-(delta/2),0);
      rotate(theta);
      }

  
}




void draw() {
  //this is for grid display, not in svg file
  //centre
  pushMatrix();
  translate(centre.x, centre.y);
  for (int i = 0; i < 600; i = i+100) {
  line(-600,i,600,i);
  line(i,-600,i,600);
    line(-600,-i,600,-i);
  line(-i,-600,-i,600);
  }
  popMatrix();
  noFill();
  beginRecord(SVG, "my_spider_instructables.svg");
  

  //bordure exterieur
  circle(centre.x,centre.y,2*(rayon_spider));
  println("rayon spider : " + rayon_spider/my_scale);
  //pour visuel uniquement
  //circle(centre.x,centre.y,longeur_pavillon*2);
  //centre pour coil
  circle(centre.x,centre.y,rayon_coil*2);
  
  //cut 4 screw holes
  pushMatrix();
  translate(centre.x, centre.y);
  //rotate(PI/9);
  circle(radius_for_screw, 0, 2*screw_hole);
  rotate(PI/2);
    circle(radius_for_screw, 0, 2*screw_hole);
  rotate(PI/2);
    circle(radius_for_screw, 0, 2*screw_hole);
  rotate(PI/2);
    circle(radius_for_screw, 0, 2*screw_hole);
  popMatrix();
  
  float rayon_int= rayon_coil + delta1;
  float delta = delta2;
  
  pushMatrix();
  translate(centre.x, centre.y);
  cut_beans(3,rayon_int,delta);
  rotate(PI/3);
  rayon_int=rayon_coil + delta1 +delta2 +delta3;
  delta=delta4;
  cut_beans(3,rayon_int,delta);
  popMatrix();
  
  

  endRecord();
}