R6,Applications
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Traverse
Usethetraversesubapplicationtocalculatethepositionofanewpointusingthebearingand
thedistancefromaknownpoint.Offsetoptional.
9.5.3 Intersections
Access
1) SelectIntersectionfromtheCOGO MAIN MENU.
2) SelectthedesiredCOGOmethod:
BearingBearing
Usethebearing‐bearingsubapplicationtocalculatetheintersectionpointoftwolines.Alineis
definedbyapointandadirection.
BearingDistance
Usethebearing‐distancesubapplicationtocalculatetheintersectionpointofalineandacircle.
Thelineisdefinedbyapointandadirection.Thecircleisdefinedbythecenterpointandthe
radius.
Known
P1 Knownpoint
α DirectionfromP1toP2
d1 DistancebetweenP1andP2
d2 Positiveoffsettotheright
d3 Negativeoffsettotheleft
Unknown
P2 COGOpointwithoutoffset
P3 COGOpointwithpositiveoffset
P4 COGOpointwithnegativeoffset
• Brg-Brg • Dst-Dst
• Brg-Dst • Ln-Ln
Known
P1 Firstknownpoint
P2 Secondknownpoint
α1 DirectionfromP1toP3
α2 DirectionfromP2toP3
Unknown
P3 COGOpoint
d1
d2
d3
P1
P3
P2
P4