Zoom20/30/35 Pro | 54Applications
By Points Use the line-line subapplication to calculate the intersection point of two lines. A line is defined by two
points.
To add a shift to the lines do the following:
1) Select Page 2 (Colour & Touch display) or Page 2/2 (Black & White display) from the INTERSEC-
TION 4 POINTS screen.
2) Enter the values to shift the lines. Enter a positive value (+) to shift the line to the right side. Enter a
negative value (-) to shift the line to the left side.
11.6.4 Offsets
Access Select the desired COGO method from the COGO menu.
Distance - Offset Use the distance-offset subapplication to calculate the distance and offset of a known point, with the base-
point in relation to a line.
Set point by.... Use the set point subapplication to calculate the coordinates of a new point in relation to a line from known
longitudinal and offset distances.
Plane Use the COGO plane application to calculate the coordinates of a new point and its height and offset, in
relation to a known plane and offset point.
Known
P1 First known point
P2 Second known point
P3 Third known point
P4 Fourth known point
a Line from P1 to P2
b Line from P3 to P4
Unknown
P5 COGO point
a
b
P1
P2
P3
P4
P5
• DistOff • Set Pt
• Plane
Known
P0 Instrument station
P1 Start point
P2 End point
P3 Offset point
Unknown
d1 d Line
d2 d Offset
P4 COGO (base) point
Known
P0 Instrument station
P1 Start point
P2 End point
d1 d Line
d2 d Offset
Unknown
P3 COGO point
d1
d2
P1
P2
P3
Known
P1 Point 1 which defines plane
P2 Point 2 which defines plane
P3 Point 3 which defines plane
P4 Offset point
Unknown
P5 COGO (intersection) point
d1 Offset
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