letter2.js

var r = new Rune({
  container: "#canvas",
  width: 800,
  height: 600,
  something: "else"
});

var w = 130;
var h = 150;
var sm = w * 0.17;
var me = w * 0.25;
var la = w * 0.5;

var letters = {
  b : {
    c1x: w * 0.75,
    c1y: h * 0.25,
    c1s: sm,
    c2x: w * 0.7,
    c2y: h * 0.66,
    c2s: me
  }
};

function drawLetter(letter) {
  var myGroup = r.group(0, 0);
  r.rect(0, 0, w, h, myGroup).stroke(false)
  r.circle(letter.c1x, letter.c1y, letter.c1s, myGroup).fill(255).stroke(false);
  r.circle(letter.c2x, letter.c2y, letter.c2s, myGroup).fill(255).stroke(false);
}

drawLetter(letters.b);

r.draw();