Animate a Canvas circle to draw on load

Question

OK Hello.

I\'ve decided to start using HTML canvas for a small project I have.

There\'s no real start yet. I\'m just learning the basics of Canvas and I want

Answer 1

Three steps:

1) Make an "init" function which will assign the variables (they aren't in any   
function).  
2) Then use requestAnimationFrame, or setInterval with your   
drawing function you will create.  
3) In this "drawing/updating" function you're going to   
write your code to do the maths and then just animate the updated circle.    

There aren't any functions in your code. If you don't know how to make functions and use them + what is global variable it's better to read first a tutorials about that but anyway I'll try to make you an example :)