Centre + Point

Draw a circle by specifying the centre and a point on the circle or by the radius.

This function allows you to draw a circle by indicating a point at the centre of the circle and then indicating a point on the circumference.

You can enter the exact coordinates for the points by using the Coordinate jump function by pressing [U]. You can also use the [Up], [Down], [Left] and [Right] keys to draw the circle by giving a direction and a set radius length.

Procedure

1. You are prompted to:

Indicate centre point of circle

2. You can click in the drawing to indicate the centre of the circle.

3. You are prompted to:

Indicate point on radius

The circle is drawn on the screen with the cursor positioned on the circle circumference.  

4. As the cursor moves, the circle increases or decreases in radius.

5. Position the cursor over the desired radial point and click or press [Enter]. The function repeats.

6. You can also use the Coordinate placement to draw between two specified coordinates; or the Polar placement to move a set distance at a specified angle. Alternatively, you can use the [Up], [Down], [Left] and [Right] keys to draw the circle to a set radius.

7. Right-click on the screen and select Quit to end the function. Alternatively, press [Esc].