Permit to draw an ellipse or a perfect circle.
To draw an ellipse :
To draw a perfect circle :
- Push the left button of the mouse.
- Move the mouse to draw an ellipse which the outline appear.
- Release the button of the mouse when the shape and the height of the ellipse are suitable.
- The ellipse appear on the screen with the thickness and the active outline colour.
Proceed as below and keep your finger on the Ctrl key.
To draw from the center :
Proceed as below and keep your finger on the Shift key.
Note : an ellipse is made of 4 arcs of ellipse.