Oval with straight edges

Processing Coding Questions
3

I advise you to go see this post though:

The solution given by @TfGuy44 is good but the current implementation of the rect() function does not provide expected results.

In the post above, I propose this solution instead:

float f = 0.552284749831;

void setup() {
  size(500, 500);
  background(20);
  
  noFill();
  stroke(200);
  strokeWeight(1);
  myRect(100, 100, 200, 100, 50, 50, 50, 50);
}

void myRect(float x1, float y1, float lx, float ly, float tl, float tr, float br, float bl) {
  float x2 = x1 + lx;
  float y2 = y1 + ly;

  beginShape();
  if (tr != 0) {
    vertex(x2 - tr, y1);
    bezierVertex(x2 - tr + f * tr, y1, x2, y1 + tr - f * tr, x2, y1 + tr);
  } else {
    vertex(x2, y1);
  }
  if (br != 0) {
    vertex(x2, y2-br);
    bezierVertex(x2, y2 - br + f * br, x2 - br + f * br, y2, x2 - br, y2);
  } else {
    vertex(x2, y2);
  }
  if (bl != 0) {
    vertex(x1+bl, y2);
    bezierVertex(x1 + bl - f * bl, y2, x1, y2 - bl + f * bl, x1, y2 - bl);
  } else {
    vertex(x1, y2);
  }
  if (tl != 0) {
    vertex(x1, y1+tl);
    bezierVertex(x1, y1 + tl - f * tl, x1 + tl - f * tl, y1, x1 + tl, y1);
  } else {
    vertex(x1, y1);
  }
  endShape(CLOSE);
}
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