Ellipses can be drawn by choosing the tool from the circle submenu:
There are three points needed to define the ellipse: the center and two more points to set the minor and major radii of the ellipse. Both of these values can be changed by the user after the ellipse was drawn. The values for an ellipse’s minor and major radii can be changed. If the value for the minor radius is greater than that of the major radius or vice verse, the two values are automatically switched:
There are no constraints for the Ellipse tool.
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