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Leica Viva Series Technical Reference Manual - PRISM-Surveying ...

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39 COGO<br />

39.1 Overview<br />

Description COGO is an application to perform coordinate geometry calculations such as<br />

• coordinates of points.<br />

• bearings between points.<br />

• distances between points.<br />

�<br />

COGO calculation<br />

methods<br />

The calculations can be made from<br />

• existing point data in the job, known distances or known azimuths.<br />

• manually measured points.<br />

• entered coordinates.<br />

In contrast to hidden point measurements within the Survey application, COGO is more of a<br />

calculation program than a measuring program.<br />

Changing coordinates of a point which has been previously used in COGO does not result in<br />

the point being recomputed.<br />

The COGO calculation methods are:<br />

• Inverse<br />

• Traverse<br />

• Intersection<br />

• Line and arc calculations<br />

• Area division<br />

• Shift, rotate & scale<br />

• Angle<br />

<strong>Viva</strong> <strong>Series</strong>, COGO 801

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