Retrieving coordinates from rectangle function

Dear all,

Using the rectangle function, I am generating an ellipse.

Is it possible to retrieve the corresponding x and y coordinates of this shape?

Answer 1

[B]

Solved the problem by defining the ellipse as a sine and cosine function, instead of the rectangle function.

Answer 2

[Image Analyst]

There is also an imellipse() function if you have the Image Processing Toolbox.