Hi,

I think that this code can run faster, if I use points, but I can't get points to follow the curve in the same way as ellipses - why is that?



AURA shine;

class AURA {
 
 // set parameters for the particle
 void display() {
   for(int i=0; i<numParams; i++){ x[i] = x_[i]; }
   stroke(20, 7, 19, 200);
   curve(Ipol[0], Ipol[1], Ipol[2], Ipol[3], Ipol[4], Ipol[5], Ipol[6], Ipol[7]);
   curve(Ipol[8], Ipol[9], Ipol[4], Ipol[5], Ipol[10], Ipol[11], Ipol[12], Ipol[13]);
   
   
   ellipseMode(CENTER);
   int steps = 50;
   for(int i = 0; i <= steps; i++) {
     float t_ln1 = i / float(steps);
     float x_ln1 = curvePoint(Ipol[0], Ipol[2], Ipol[4], Ipol[6], t_ln1);
     float y_ln1 = curvePoint(Ipol[1], Ipol[3], Ipol[5], Ipol[7], t_ln1);
     fill(230, 230, 200, 100);
     noStroke(); // HOW DO I USE A POINT IN STEAD OF AN ELLIPSE THAT FOLLOWS THE CURVES ?
     for(int lines = 0; lines <= halo; lines++) { ellipse(x_ln1 + lines + randPosX[lines], y_ln1 + lines + randPosY[lines] , 1, 1); }
     }
     
   
   ellipseMode(CENTER);
   int steps_2 = 50;
   for(int i = 0; i <= steps_2; i++) {
    float t_ln2 = i / float(steps_2);
    float x_ln2 = curvePoint(Ipol[8], Ipol[4], Ipol[10], Ipol[12], t_ln2);
    float y_ln2 = curvePoint(Ipol[9], Ipol[5], Ipol[11], Ipol[13], t_ln2);
    fill(230, 230, 200, 100);
    noStroke(); // HOW DO I USE A POINT IN STEAD OF AN ELLIPSE THAT FOLLOWS THE CURVES ?
    for(int lines = 0; lines <= halo; lines++) { ellipse(x_ln2 + lines + randPosX[lines], y_ln2 + lines + randPosY[lines] , 1, 1); }
   }
   
   // random position of the halo dots
   count++; // Increment the counter
   if(count >= 10) { count = 0; }
   if(count >= 2 && count >= 5 && count >= 7) { for(int i=0; i <= halo; i++) { haloPosX[i] = random(0, 10); haloPosY[i] = random(0, 10); } }

or you might as well just try
rect( .. same values as with ellipse here .. );

can you pls post the complete code (or a simplified subset), so it's easier to find the problem with stroke/line which you mentioned in the duplicate post?

best,
F