POWER GRAPHIC Engineering Surveyor Programs

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Casio fx-7400G Plus Power GraphicEngineering Surveyor ProgramsTRANSFRMIntroductionThis program uses two known points to transform any other points between twodifferent co-ordinate systems. A baseline is used to calculate the Scale, Rotationand Translation parameters between the systems.DiagramOld Baseline(E2, N2)(X2, Y2)(E1, N1)(E3, N3)(X1, Y1)NewBaselineBrg 1Brg 2(X3, Y3)InputOriginal co-ordinates: (E1, N1) (E2, N2)New co-ordinates: (X1, Y1) (X2, Y2)Other points:(E3, N3) (E4, N4) (E5, N5) ….OutputOriginal Baseline Distance: Old BaselineNew Baseline Distance: New BaselineScale Factor:SFScale Error per Km:Error/KmTransformed Points:(X3, Y3) (X4, Y4) (X5, Y5) …..Bearings to Basepoints: Brg 1, Brg 2Page 26 of 38
Casio fx-7400G Plus Power GraphicEngineering Surveyor ProgramsTRAVERSEIntroductionComputes station co-ordinates of a traverse given a starting baseline and aseries of measured horizontal angles and forward distances. The traverse maybe left open or closed.DiagramRO(Ero, Nro)or(E3, N3)OpenBrgHzDist3HA1StationHzDist1(Eo, No)FwdBrg1HA2HzDist2HA2FwdBrg3(E1, N1)FwdBrg2(E2, N2)InputStation co-ordinates:RO co-ords or Opening Bearing:Measured Angles:Measured Horz Distances:(Eo, No)(Ero, Nro) or OpenBrgHA1, HA2, HA3……HzDist1, HzDist2, HzDist3…….OutputForward Bearings:Intermediate co-ordinates:FwdBrg1, FwdBrg2, FwdBrg3…..(E1, N1), (E2, N2), (E3, N3)….Page 27 of 38
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POWER GRAPHIC Engineering Surveyor Programs

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