Reversing the ellipse measurements and rendering it programatically.

[kongkip]

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Hello there, I have an API endpoint that returns the ellipse points, center x, center y, short distance, long-distance, and angle and I would want to render them with the ellipse tool on the viewport. However, Ellipse Tool requires the points start x, start y, end x,end y, and initial rotation. My question is, is it possible to reverse the points I am getting from the API to correspond to the later points for rendering with cornerstone? what formulae can I use?

In the file drawing\drawEllipse.js, the ellipse is drawn on the canvas passing the points same as the ones I get from the API.

  path(context, options, context => {
    context.ellipse(center.x, center.y, w / 2, h / 2, angle, 0, 2 * Math.PI);
    context.closePath();
  });