ELLIPSE HELP

benben

how can I make a series of circles that is transparent in the edges while dark in the middle using while loops

Chrisir

Homework?

Chrisir

Show your code

What have you tried?

benben

int diam=400;
int change=20;
void setup(){
  size(400,400); 
  background(255);
  fill(10,10,10,255);
  ellipse(width/2,height/2,100,100); 
}

void draw(){
  fill(255,255,255,100); 
  while(diam>=0){
    ellipse(width/2,height/2,diam,diam);
    diam=diam-change; 
    strokeWeight(5); 
    stroke(12,247,65); 
  }
}

benben

I want it to be dark in the middle while light on the edges

Chrisir

StrokeWeight you don't need

To have the effect, place fill directly before ellipse in the ellipse and give it a fourth parameter that increases from 0 to 100

It's the opacity

Chrisir

Use noStroke (); before ellipse

benben

something like this I need it to look

Chrisir

did you follow what I said?

post your entire code

benben

int diam=400; int change=20; void setup(){size(400,400); background(255);fill(10,10,10,150); ellipse(width/2,height/2,100,100); }

void draw(){

while(diam>=0){fill(255,255,255,50);ellipse(width/2,height/2,diam,diam); diam=diam-change; stroke(12,247,65); }}

Chrisir

??

I wrote

To have the effect, place fill directly before ellipse in the ellipse and give it a fourth parameter that increases from 0 to 100

It's the opacity

Chrisir

int diam=400; 
int change=20;
int a1=0;
void setup() {
  size(400, 400); 
  background(0);
  //  stroke(255);
  //  fill(10, 10, 10, 150); 
  //  ellipse(width/2, height/2, 100, 100);
  noStroke();
}

void draw() {
  while (diam>=0) {
    fill(2, 255, 2, a1);
    ellipse(width/2, height/2, diam, diam); 
    diam=diam-change; 
    // stroke(12, 247, 65);
    a1++;
  }
}