Operation Instruction

27
point being the end point of arc.
The absolute origin or the end point of previous capture segment is the first point of arc capture.
Press the key to move cursor to desired position, and press key to identify the arc height
reference point; press key to move to the desired position, and press key to determine the end
point of arc to generate the arc.
To draw accurate arc, reference coordinate values are needed, and it's necessary to make the height
reference point in the perpendicular bisector of line between start point and end point.
Circle Capture
Press eyk in main interface of file capture, when the key background turns yellow, which
means the current segment capture is in circle mode as shown in the figure:
In the case of circle capture, any 3 points that are not in the same straight line generate a circle.
The processing sequence: The first point (start point) > The second point > The third point > The first
point (end point).
The absolute origin or the end point of previous capture segment is the first point of circle capture
(the start point and end point of circle). Press the key to move cursor to desired position, and press
to identify the second reference point; press the key to move to the desired position, and press
key to determine the third reference point to generate the circle automatically. In the meantime,
the press frame moves to the start point of circle.