Centre + Start + End

Draw an arc with a specified centre point from the start point to the end point.

This function allows you to draw the arc by entering the centre point and the start and end point of the arc.

You can also enter the angle you want the arc to cover or the length of the arc, by using the options on the Control Bar.

If your Drawing Plane normal is anti-parallel to your View normal, i.e. the View is top and the Drawing Plane is bottom, it appears as if the arc is being drawn clockwise from the start point. It is, however, anti-clockwise in the co-ordinate system of the arc, which is the same as the Drawing Plane.

Procedure

1. You are prompted to:

Indicate centre point of arc

2. Position the cursor over the desired centre position and click or press [Enter].

3. You are prompted to Indicate second point in the arc.

Indicate start point of arc

A line is drawn, showing the radius of the arc from the centre point to the start point.

4. Position the cursor on the start point for the arc and click or press [Enter]. You can jump to the desired point or use the snaps.

5. You are prompted to:

6. You can select to draw the arc by Arc angle or by Arc length. Select the appropriate radio button to specify your choice.

7. Click in the text box, or press [Tab] to move into the text box, and then input the text.  

8. Input the required angle or arc length and then press [Enter] or click Enter . The arc is shown and you can drag the arc to the desired end point. The arc is drawn in an anti-clockwise direction from the start point.

9. Position the cursor on the end point for the arc, and then click or press [Enter]. You can jump to the desired point or use the snaps to arrive at the desired position. The arc is now set and the function repeats.

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