In the case of polyline segment capture, up to 127 consecutive points can be handled, and the line
segment will be generated by two points determining straight line.
The absolute origin or the end point of previous capture segment is the first point of polyline
segment capture. Press the key to move cursor to desired position, press
capture point, and move for several times to determine capture points; upon completion, press
key to generate the polyline segment linking the points up.
4.8 Arc Capture
Press
key in main interface of file capture, when the key background turns yellow, which
means the current segment capture is in arc mode as shown in the figure:
In the case of arc capture, any 3 points that are not in the same straight line generate an arc: The
first point is the start point of arc, the second point being the height reference point of arc, and the third
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key to identify the