Use
the Ellipse object tool to draw an ellipse defined by three vertices.
The first vertex determines the centre of the ellipse. The second
vertex determines the horizontal radius of the ellipse. The third
vertex determines the vertical radius.
To draw an ellipse:
- In the Graphics menu, click Add.
- Select the Ellipse tool in the Object
Tools window.
- Position the cursor at the centre of
the ellipse and press to anchor the point on the image. Do not release
the cursor.
- Drag the cursor horizontally to establish
the width of the ellipse. You can continue to adjust the width as
long as you press down on the cursor.
- Release the cursor to anchor the second
vertex.
- Move the cursor along the vertical axis
to position the third vertex. You can continue to adjust the height
of the ellipse until you press down on the cursor. Press to anchor
the third vertex.
The ellipse is drawn
on the image.
To draw a circle with the Ellipse tool:
- In the Graphics menu, click Add and select
the Ellipse tool.
- Press E.
- Position the cursor at the centre of
the circle and press to anchor the point on the image. Do not release
the cursor.
- Drag the cursor horizontally to establish
the radius of the circle. Notice that there are two vertices at
the edge of the circle, as there are for an ellipse.
- Release the cursor and the E key to anchor the second and third
vertices.
The circle is drawn on
the image.