How to generate points/ellipse within a circle area

[yuinjann]

Hello! I’m trying to generate ellipses within an ellipse, or a circular area.
for example:

for (let i=0; i< 100; i++){
ellipse (random(width), random(height), 10)
}
noLoop();

Is there a way to generate these random circles within an ellipse instead of the canvas? I’ve looked at drawing circles along a circle, but I want it to be within it too. I’ve also looked at circle packing, but I don’t think it needs to be that complicated, I just need to generate points within a circle

Let me know, thank you!

[Chrisir]

Hello!

You can check the distance to the middle of the circle. Only draw the random point when the distance is <radius.

• Use if(...) and dist() - see reference.

The other way is to use cos and sin to calculate a position inside the circle.

• See website, tutorials, trigonometry please. Together with a random radius and random angle (0…TWO_PI).

Warmest regards

Chrisir

[glv]

Hello,

Resources < Click here to expand !

I encourage you to review the resources available here:

• The Processing website has references, examples, tutorials, etc.
  https://processing.org/
• Those available with the Processing PDE (IDE).
  An exploration of the tabs will reveal what is available; there are libraries and examples there.
• The Coding Train
  https://www.youtube.com/channel/UCvjgXvBlbQiydffZU7m1_aw
  https://thecodingtrain.com/
• Happy Coding
  Processing Tutorials - Happy Coding
• The Processing Foundation
  https://processingfoundation.org/
  Check out the tabs.
  In the education tab, there is a reference to the Coding Train.

:)

[yuinjann]

thank you both so much! yeah that makes so much sense, will try it out