Hi,
I'm trying to have a smooth drawing of a circle. For now I'm not using OPENGL but just the smooth() function.

I find the quality of drawing extremely disappointing, but I'm shure it is because of the implementation, just adding OPENGL doesn't change anything

Can anyone advice me on how to get stuff really smooth, I've looked in the discourse, but the related topics are mostly old ones.

here is a small sketch with what I'm doing(really a sketch!):

// import processing.opengl.*;


float a;
float b;
float x;
float y;
float d;
float angle;
boolean onCircle=false;
color c;
float[] center= new  float[2];

void setup(){
 smooth();
 size(400,400);
//size(400,400,OPENGL);
 background(0);
 frameRate(100);
 a=random(width);
 b=random(height);
 d=60;
 angle=0;
 c=color(200,200,255,255);
 center[0]=width/2;
 center[1]=height/2;
 println("centerPoint: "+center[0]+"_"+center[1]);


}

void draw(){
 noStroke();
 fill(0,0,0,10);
 rect(0,0,width,height);
 ellipseMode(CENTER);
 noFill();
 stroke(c);
 //strokeWeight(1);
 ellipse(a,b,d,d);
 x=a+cos(radians(angle))*d/2;
 y=b+sin(radians(angle))*d/2;
 line(a,b,x,y);
 stroke(128);
 line(a,b,center[0],center[1]);
 noStroke();
 fill(c);
 ellipse(x,y,5,5);


 angle+=1;

}

void mouseInteraction(){

}

void mousePressed(){
 if(onCircle){

 }
}

thx

Pieter