How could I do something like this in TikZ?

enter image description here

  • 1
    Please add a minimal working example (MWE) that illustrates your problem. I.e. which part are you having difficulties with?
    – nickpapior
    Commented Apr 25, 2013 at 9:23
  • Define a circle, construct the tangent point via the tangent coordinate system, transform the circle to an ellipse and apply the same transformation to the tangent point, draw the ellipse and the tangents.
    – Toscho
    Commented Apr 25, 2013 at 10:45


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